Patent Search and Analysis
Expert-defined terms from the Advanced Certificate in Patent Strategy course at London School of Business and Administration. Free to read, free to share, paired with a professional course.
A concise paragraph at the beginning of a patent document that outlines the tech… #
The abstract is not a claim but serves as a quick reference for searchers.
Example #
In a patent for a solar‑powered water purifier, the abstract might state “A portable device that uses photovoltaic cells to drive a filtration system, providing clean water in remote locations.”
Practical application #
Search engines index abstracts to retrieve relevant patents during keyword searches.
Challenges #
Abstracts are limited to 150 words, often omitting detailed embodiments, which can lead to missed relevant patents if only the abstract is examined.
The formal submission of a request for patent protection to a patent office, com… #
The formal submission of a request for patent protection to a patent office, comprising forms, fees, and supporting documents such as the specification and drawings.
Example #
An inventor files a utility‑application for a novel battery management system, including claims, description, and drawings.
Practical application #
Understanding the status of an application (pending, published, granted) is crucial for freedom‑to‑operate analysis.
Challenges #
Different jurisdictions have varying filing requirements and timelines, making global tracking complex.
A subdivision within the United States Patent and Trademark Office (USPTO) that… #
g., “A61” for medical devices).
Example #
A patent application for a new surgical instrument is assigned to Art Unit 1669, which handles “Surgical Instruments.”
Practical application #
Knowing the art unit helps predict examination timelines and locate prior art within the same technical field.
Challenges #
Art unit assignments can change during prosecution, and cross‑technology inventions may be mis‑classified, affecting search results.
The legal entity that holds the rights to a patent, often a corporation, univers… #
The legal entity that holds the rights to a patent, often a corporation, university, or individual, to which the inventor has transferred ownership.
Example #
The patent for a CRISPR editing tool lists “MIT” as the assignee.
Practical application #
Identifying assignees enables strategic monitoring of competitors’ portfolios.
Challenges #
Ownership can change through assignments, mergers, or bankruptcies, requiring continuous updates in databases.
All existing knowledge and publications that relate to the invention before the… #
All existing knowledge and publications that relate to the invention before the filing date, cited in the patent specification to contextualize the problem.
Example #
A patent for a new polymer cites earlier patents on similar polymerization methods as background art.
Practical application #
Background art helps examiners assess novelty and inventive step.
Challenges #
Searchers must locate obscure or non‑patent literature that may not be indexed in standard patent databases.
The legally enforceable part of a patent that defines the boundaries of protecti… #
The legally enforceable part of a patent that defines the boundaries of protection; each claim consists of a preamble and a series of technical features.
Example #
Claim 1 of a smartphone battery patent reads “An electrochemical cell comprising…”.
Practical application #
Claims are the primary focus in infringement analysis and freedom‑to‑operate studies.
Challenges #
Complex claim language and multiple dependent claims can make claim charting labor‑intensive.
A system that groups patents by technical subject matter using codes; the Intern… #
A system that groups patents by technical subject matter using codes; the International Patent Classification (IPC) and Cooperative Patent Classification (CPC) are the most widely used.
Example #
A nanotech coating may be classified under CPC “C01B 3/24”.
Practical application #
Classification codes enable targeted searching by technology area.
Challenges #
Mis‑classification or multiple classifications can cause relevant documents to be missed if only one code is used.
Procedures that allow an applicant to pursue additional claims based on the same… #
Procedures that allow an applicant to pursue additional claims based on the same disclosure as the parent application, often to broaden protection or adapt to examiner feedback.
Example #
After a rejection, an applicant files a continuation‑in‑part to add new embodiments.
Practical application #
Continuations preserve priority dates while expanding claim scope.
Challenges #
Managing multiple family members increases the complexity of portfolio analysis.
A joint classification system developed by the USPTO and the European Patent Off… #
A joint classification system developed by the USPTO and the European Patent Office (EPO) that refines IPC codes with greater granularity.
Example #
The CPC subclass “G06F 9/00” covers “Error detection; error correction.”
Practical application #
CPC codes are searchable in most patent databases and improve precision.
Challenges #
Frequent updates require analysts to stay current on code changes.
A unique identifier assigned to each patent document, varying by jurisdiction (e #
g., US 7,654,321 or EP 2 345 678).
Example #
The US patent “US 10,123,456” refers to a specific granted invention.
Practical application #
Document numbers are essential for citation tracking and linking family members.
Challenges #
Different formats and prefixes can cause data‑integration errors when aggregating multiple sources.
The complete record of all correspondence, office actions, and amendments associ… #
The complete record of all correspondence, office actions, and amendments associated with a patent application.
Example #
The docket for a biotech patent includes examiner reports, applicant responses, and fee receipts.
Practical application #
Analyzing the docket reveals the examiner’s reasoning and potential claim amendments.
Challenges #
Dockets are often extensive and may be split across multiple files, making comprehensive review time‑consuming.
Visual representations that accompany a patent specification, illustrating embod… #
Visual representations that accompany a patent specification, illustrating embodiments, flowcharts, or structural features.
Example #
A mechanical patent includes a drawing of a gear assembly with labeled components.
Practical application #
Drawings aid in understanding the scope of the invention and can be key in claim interpretation.
Challenges #
Low‑resolution or incomplete drawings can hinder technical assessment, especially for complex devices.
Software platforms that provide access to patent collections, such as Espacenet,… #
Software platforms that provide access to patent collections, such as Espacenet, USPTO PAIR, or Derwent Innovation.
Example #
An analyst uses the USPTO’s Patent Full‑Text and Image Database (PatFT) to locate U.S. patents.
Practical application #
Electronic systems enable keyword, classification, and citation searching across millions of documents.
Challenges #
Varying user interfaces, data quality, and coverage gaps can affect search completeness.
The process by which a patent examiner reviews a pending application against sta… #
The process by which a patent examiner reviews a pending application against statutory criteria (novelty, inventive step, sufficiency of disclosure).
Example #
An examiner issues a non‑final office action rejecting claims as anticipated.
Practical application #
Understanding examination timelines helps plan product launch strategies.
Challenges #
Examiner discretion and differing standards across offices can lead to unpredictable outcomes.
Example #
A European patent family includes an EP application, corresponding US and JP filings, and granted patents in each region.
Practical application #
Family analysis reveals the geographical coverage of protection.
Challenges #
Incomplete family data or missing priority links can obscure true scope.
The date on which a patent office receives a complete application, establishing… #
The date on which a patent office receives a complete application, establishing the start of the statutory period for novelty.
Example #
An application received on 12 March 2023 has a filing date of 12 March 2023.
Practical application #
The filing date determines the cut‑off for prior art.
Challenges #
Early publication of provisional applications may create confusion about which date is controlling.
A legal analysis that determines whether a product or process can be commerciali… #
A legal analysis that determines whether a product or process can be commercialized without infringing existing patents.
Example #
A biotech company conducts an FTO search before launching a new therapeutic.
Practical application #
FTO opinions guide product development and licensing decisions.
Challenges #
Hidden patents, pending applications, and ambiguous claim language can increase uncertainty.
A comprehensive search that spans multiple patent offices worldwide, often using… #
A comprehensive search that spans multiple patent offices worldwide, often using the Patent Cooperation Treaty (PCT) as a starting point.
Example #
An inventor files a PCT application and uses the International Search Report (ISR) to identify relevant prior art globally.
Practical application #
Global searches support strategic filing decisions and risk assessment.
Challenges #
Language barriers, inconsistent database coverage, and differing classification schemes complicate worldwide searches.
The natural person(s) who conceived the invention and contributed to the disclos… #
The natural person(s) who conceived the invention and contributed to the disclosed subject matter.
Example #
Jane Doe is listed as the inventor on a patent for a novel drug delivery system.
Practical application #
Inventor names affect entitlement and can be relevant in litigation for inventorship disputes.
Challenges #
Errors in inventor listing can render a patent unenforceable in some jurisdictions.
A document produced by an International Searching Authority (ISA) that lists rel… #
A document produced by an International Searching Authority (ISA) that lists relevant prior art for a PCT application.
Example #
The ISR for a PCT filing on a nanomaterial cites 25 documents, including non‑patent literature.
Practical application #
The ISR guides applicants in amending claims before entering national phases.
Challenges #
ISRs may miss region‑specific literature, requiring supplemental national searches.
A search strategy that uses specific words or phrases, often combined with Boole… #
A search strategy that uses specific words or phrases, often combined with Boolean operators (AND, OR, NOT) to retrieve relevant patent documents.
Example #
Searching “wireless charging AND inductive” retrieves patents on inductive power transfer.
Practical application #
Keyword searches are quick for exploratory research.
Challenges #
Synonyms, spelling variations, and technical jargon can cause false negatives or positives.
The current enforceability of a patent, indicating whether it is active, pending… #
The current enforceability of a patent, indicating whether it is active, pending, abandoned, or expired due to fee non‑payment.
Example #
A patent listed as “lapsed” indicates maintenance fees were not paid.
Practical application #
Legal status informs risk assessments for product launches.
Challenges #
Status updates may lag in public databases, leading to inaccurate conclusions.
Periodic payments required to keep a granted patent in force; failure to pay res… #
Periodic payments required to keep a granted patent in force; failure to pay results in lapse.
Example #
In the United States, maintenance fees are due at 3.5, 7.5, and 11.5 years after grant.
Practical application #
Monitoring fee schedules helps avoid unintentional loss of rights.
Challenges #
Different fee structures across jurisdictions increase administrative burden.
Publicly available information not protected by patents, such as journal article… #
Publicly available information not protected by patents, such as journal articles, theses, or standards, that can be used as prior art.
Example #
A journal article describing a new alloy composition may be cited as NPL.
Practical application #
Including NPL in searches improves completeness of prior art analysis.
Challenges #
NPL is less searchable, often requiring manual review and translation.
A written notice from a patent examiner indicating objections to claims, request… #
A written notice from a patent examiner indicating objections to claims, request for clarification, or allowance of the application.
Example #
A non‑final office action cites prior art and demands claim limitations.
Practical application #
Responding effectively to office actions is crucial for successful prosecution.
Challenges #
Ambiguous language in office actions can lead to misinterpretation and costly amendments.
The quantitative study of patent data to identify trends, technology hotspots, a… #
The quantitative study of patent data to identify trends, technology hotspots, and competitive positioning.
Example #
An analytics report shows a surge in patents related to AI‑driven drug discovery over the past five years.
Practical application #
Analytics guide R&D investment and IP strategy.
Challenges #
Data quality, classification noise, and the need for advanced statistical tools can limit insights.
A reference made by a patent document to earlier patents (backward) or later pat… #
A reference made by a patent document to earlier patents (backward) or later patents (forward) that acknowledge influence or relevance.
Example #
Patent US 9,876,543 cites US 7,654,321 as a prior art reference.
Practical application #
Citation analysis helps assess the impact of a patent and identify related technologies.
Challenges #
Not all relevant patents are cited; examiner discretion can result in incomplete citation networks.
An international treaty that simplifies filing in multiple jurisdictions by prov… #
An international treaty that simplifies filing in multiple jurisdictions by providing a unified procedure for a single application.
Example #
An applicant files a PCT application in 2022, then enters national phases in the US, Europe, and Japan in 2024.
Practical application #
PCT streamlines global protection and defers costly national filings.
Challenges #
The PCT does not grant an international patent; each national phase still requires separate examination.
A visual or narrative overview of patent activity in a specific field, highlight… #
A visual or narrative overview of patent activity in a specific field, highlighting key players, emerging trends, and gaps.
Example #
A landscape report on biodegradable plastics identifies dominant assignees and unpatented research areas.
Practical application #
Helps organizations spot opportunities for innovation or acquisition.
Challenges #
Requires comprehensive data collection and expert interpretation to avoid misleading conclusions.
A designation indicating that a patent application has been filed but not yet gr… #
A designation indicating that a patent application has been filed but not yet granted, often used to deter copying.
Example #
A product label reads “Patent pending” after filing a provisional application.
Practical application #
Signals to competitors that protection is sought, potentially discouraging infringement.
Challenges #
“Patent pending” offers no enforceable rights; false claims may lead to legal penalties.
The total set of patents and pending applications owned or controlled by an enti… #
The total set of patents and pending applications owned or controlled by an entity, representing its intellectual property strength.
Example #
A technology company maintains a portfolio of 1,200 patents across electronics, software, and hardware.
Practical application #
Portfolio analysis informs licensing, M&A, and strategic planning.
Challenges #
Managing large portfolios demands robust data management and periodic pruning of low‑value assets.
A systematic plan that defines search objectives, sources, keywords, classificat… #
A systematic plan that defines search objectives, sources, keywords, classifications, and validation steps to retrieve relevant patent information.
Example #
An FTO search strategy includes keyword, classification, and citation searches across USPTO, EPO, and CNIPA databases.
Practical application #
A well‑defined strategy ensures thoroughness and repeatability.
Challenges #
Overly broad strategies generate excessive results; overly narrow strategies risk missing critical documents.
The duration for which a granted patent provides exclusive rights, generally 20… #
The duration for which a granted patent provides exclusive rights, generally 20 years from the filing date, subject to adjustments for extensions or fee non‑payment.
Example #
A patent filed on 1 January 2010 expires on 1 January 2030, assuming all fees are paid.
Practical application #
Knowing the term aids in planning product lifecycles and licensing windows.
Challenges #
Patent term extensions, such as for pharmaceutical products, can complicate expiration calculations.
A search conducted to determine whether an invention meets the statutory require… #
A search conducted to determine whether an invention meets the statutory requirements of novelty and inventive step before filing.
Example #
An inventor commissions a patentability search for a new drone navigation algorithm.
Practical application #
Early identification of prior art reduces the risk of rejection and saves filing costs.
Challenges #
Incomplete coverage of non‑patent literature or foreign language patents may lead to false confidence.
Any information publicly available before a patent's filing date that may affect… #
Any information publicly available before a patent's filing date that may affect its novelty or non‑obviousness.
Example #
A conference paper describing a similar sensor technology constitutes prior art.
Practical application #
Prior art is used by examiners to reject claims and by litigants to challenge patent validity.
Challenges #
Locating all relevant prior art, especially in fast‑moving fields, is resource‑intensive.
A U #
S. filing that allows an inventor to establish an early filing date without a formal patent claim set, providing up to 12 months to file a full utility application.
Example #
An inventor files a provisional for a novel battery chemistry on 15 June 2023.
Practical application #
Gives time to develop the invention further while securing priority.
Challenges #
Provisional applications are not examined; failure to convert to a utility application results in loss of priority.
Any act that makes an invention known to the public, such as journal articles, c… #
Any act that makes an invention known to the public, such as journal articles, conference talks, or online postings, which can become prior art.
Example #
Presenting a prototype at a trade show constitutes public disclosure.
Practical application #
Inventors must avoid premature disclosure before filing to preserve patent rights.
Challenges #
In some jurisdictions (e.g., the US), a grace period may apply, but others (e.g., Europe) have strict absolute novelty rules.
A procedure that allows a patent to be reviewed after grant, either at the reque… #
A procedure that allows a patent to be reviewed after grant, either at the request of a third party or the patentee, to address potential invalidity.
Example #
A competitor files a request for reexamination alleging that the patent lacks novelty.
Practical application #
Reexamination can narrow claim scope or invalidate a patent, affecting licensing strategies.
Challenges #
The process can be lengthy and costly, and outcomes are uncertain.
A combination of keywords, operators, and classification codes entered into a pa… #
A combination of keywords, operators, and classification codes entered into a patent database to retrieve documents matching specific criteria.
Example #
“(“machine learning” OR “deep learning”) AND (“medical imaging”) NOT “patent US 8,123,456”.
Practical application #
Well‑crafted search strings improve precision and recall.
Challenges #
Complex syntax requirements differ among databases, leading to errors if not adapted.
Symbols or words used to combine or modify search terms, such as AND, OR, NOT, *… #
, or NEAR.
Example #
Using “*” to capture “conduct*” retrieves “conduct”, “conducting”, “conductor”.
Practical application #
Operators enable flexible and powerful searching.
Challenges #
Misuse of operators can unintentionally exclude relevant results or generate noise.
The degree to which a patent claim narrowly defines an invention, affecting both… #
The degree to which a patent claim narrowly defines an invention, affecting both enforceability and risk of infringement.
Example #
A claim limited to “a polymer comprising 30 % by weight of monomer X” is more specific than a claim to “a polymer comprising any monomer”.
Practical application #
Highly specific claims reduce the chance of being invalidated but may limit commercial protection.
Challenges #
Balancing specificity against the desire for broad coverage is a strategic decision during drafting.
A basic search typically performed using keyword and classification methods to l… #
A basic search typically performed using keyword and classification methods to locate obvious prior art.
Example #
An examiner conducts a standard search for a new mechanical fastener using IPC class “B33Y”.
Practical application #
Provides an initial view of existing technology.
Challenges #
May miss obscure or interdisciplinary references, necessitating deeper searches.
A deliberate approach to filing patents in jurisdictions, at times, and in famil… #
A deliberate approach to filing patents in jurisdictions, at times, and in families that align with business objectives such as market entry, blocking competitors, or attracting investors.
Example #
A startup files provisional applications in the US, Europe, and China to secure early priority before raising Series A funding.
Practical application #
Aligns IP assets with product roadmaps and competitive moves.
Challenges #
Requires forecasting market trends and balancing cost against anticipated benefit.
The specific area of technology to which an invention belongs, influencing class… #
The specific area of technology to which an invention belongs, influencing classification, examiner assignment, and prior art relevance.
Example #
“Biocompatible polymers for medical implants” defines the technical field for a particular patent.
Practical application #
Identifying the technical field guides focused searching and expert consultation.
Challenges #
Cross‑disciplinary inventions may span multiple fields, complicating classification.
Additional time added to the standard patent term, often to compensate for regul… #
Additional time added to the standard patent term, often to compensate for regulatory delays, especially in pharmaceuticals.
Example #
An SPC in the EU extends protection for a drug by up to five years beyond the 20‑year term.
Practical application #
Extends market exclusivity and can increase patent valuation.
Challenges #
Extension eligibility criteria vary, and calculating the exact extended term can be complex.
A process that allows individuals other than the applicant to submit prior art o… #
A process that allows individuals other than the applicant to submit prior art or observations to a patent office during examination.
Example #
A competitor submits a prior art document to the USPTO after learning of a pending application.
Practical application #
Enables proactive challenge of potentially weak patents.
Challenges #
Submissions must meet deadlines and formatting rules; failure to comply may render them ineffective.
While patents protect inventions, trademarks protect brand identifiers such as l… #
While patents protect inventions, trademarks protect brand identifiers such as logos, names, and slogans.
Example #
“Apple” is a trademark for computers, whereas the technology inside the devices is protected by patents.
Practical application #
Companies often coordinate trademark and patent strategies to safeguard both product features and brand identity.
Challenges #
Confusing the two can lead to gaps in protection; both must be managed in parallel.
The legal standing of a patent, indicating that it meets all statutory requireme… #
The legal standing of a patent, indicating that it meets all statutory requirements and is enforceable against infringers.
Example #
A court upholds the validity of a patent after a thorough infringement trial.
Practical application #
Valid patents are assets for licensing and litigation.
Challenges #
Validity can be challenged through reexamination, opposition, or court proceedings, creating uncertainty.
A search aimed at identifying patents that a company may be infringing with its… #
A search aimed at identifying patents that a company may be infringing with its products or processes.
Example #
A manufacturer conducts a violation search before launching a new smartwatch model.
Practical application #
Helps avoid costly infringement lawsuits and informs design‑around strategies.
Challenges #
Requires detailed claim analysis and may uncover a large number of potentially relevant patents.
The United Nations agency responsible for promoting the protection of IP worldwi… #
The United Nations agency responsible for promoting the protection of IP worldwide, administering the PCT and various international registration systems.
Example #
An applicant uses WIPO’s “PATENTSCOPE” portal to file a PCT application.
Practical application #
Provides a single entry point for multi‑jurisdictional patent protection.
Challenges #
Navigating WIPO’s procedures and fee structures can be daunting for first‑time filers.
A comprehensive collection of patent documents from multiple offices, often inte… #
A comprehensive collection of patent documents from multiple offices, often integrated into commercial analytics platforms for worldwide prior‑art searching.
Example #
An analyst queries the WPR for all patents mentioning “graphene” filed before 2020.
Practical application #
Enables cross‑jurisdictional prior‑art assessment.
Challenges #
Data synchronization issues and language translation can affect completeness.
A search that tracks patents citing a particular patent (forward citations) to g… #
A search that tracks patents citing a particular patent (forward citations) to gauge its influence and identify emerging technologies building on it.
Example #
A yield search on US 7,654,321 reveals 45 forward citations in the field of renewable energy storage.
Practical application #
Helps assess the strategic value of a patent and discover potential licensing opportunities.
Challenges #
Not all citing patents are relevant; some may only reference the original patent in a peripheral context.