Home > IP Solutions > Quality Patent Data Get IP Insights Through Clean, Trusted Patent Data Make confident, data-driven decisions with LexisNexis® Intellectual Property Solutions Challenges our approach Impact Solutions FAQs Get in touch What is your patent data missing? Get a one-page overview of how LexisNexis® Intellectual Property Solutions harmonizes patent data across 17.6M+ active patent families, 24K+ ultimate owners, and 80+ patent authorities—backed by expert review and weekly updates. Incomplete ownership information Subsidiaries, historic names, or inventors often appear in place of the true ultimate owner, hiding the real competitive landscape. Ambiguous legal status Patents may lapse, be reassigned, or invalidated long before their 20-year term, making it unclear who truly controls the rights. Name variations and translation errors Misspellings, transliterations, and homonyms lead to fragmented or duplicated ownership records. Relying on unharmonized data can result in misjudged valuations, flawed benchmarks, and billion-dollar missteps. What we do to make patent data more reliable Our multi‑stage harmonization combines automation with expert human review to deliver trusted patent ownership data you can act on. Watch how harmonization maps true ownership across jurisdictions and time. Wide coverage. A fuller picture. 95M Patent families and other IP rights in PatentSight+ (Data as of August 2026) 17.6M+ Active patent families (Data as of August 2026) 80+ Patent authorities covered 24K+ Ultimate owners in PatentSight+ 1,100+ M&A activities tracked in 2025 Global scale with local expertise – A dedicated team of more than 10 experienced researchers from many nationalities reviews patent documents in their original national languages to verify data accuracy. Breadth and depth – More than 95 million patent families and other IP rights in LexisNexis® PatentSight+™ (Data as of Aug 2026), including over 17.6 million active patent families, are harmonized through a combination of proprietary algorithms and expert review. Trusted coverage – Data is sourced from the EPO’s DOCDB (80+ authorities), INPADOC (50+ authorities), national patent registers (40+ authorities) and litigation data, and is updated and harmonized every week. Indian bibliographic records are sourced from the Indian Patent Office through a third-party data provider and integrated into the PatentSight+ data foundation. See our PatentSight+ and LexisNexis® PatentSight+™ Dataset coverage overview for details. Corporate ownership clarity – Over 24,000 ultimate owners are mapped in PatentSight+, with patents filed by subsidiaries assigned to their ultimate commercial owner using corporate structure databases, patent register information and primary research. Supported Indian assignees are linked to global Ultimate Owner structures. Mapping does not cover every Indian assignee. Ownership mapping for Indian assignees, particularly for India-only inventions, will continue to be extended after release. M&A and reassignment monitoring – In 2025 alone, our team tracked over 1,100 announced M&A activities, and completed deals are reflected in portfolios and corporate trees in near real-time. Data Quality Snapshot Get a one-page overview of how LexisNexis® Intellectual Property Solutions harmonizes patent data across 17.6M+ active patent families, 24K+ ultimate owners, and 80+ patent authorities—backed by expert review and weekly updates. Download The Infographic Our approach to correcting ownership information Every inconsistency in patent records can distort analytics, due diligence, and strategic decisions. Our process includes: Subsidiaries to parent companies Patents filed under subsidiaries are linked back to the ultimate headquarters, so benchmarking reflects the corporate owner. Historical company names Name changes and legacy brands are reconciled, following portfolios across decades. Mergers & Acquisitions Both historic and ongoing M&A events are captured in near real time, to attribute new ownership. Patent Transactions Sales and reassignments are tracked near continuously, keeping portfolios aligned with the current rights holder. Misspellings and variations Inconsistencies across patent office records are standardized, reducing false positives and data fragmentation. Homonyms and translations Same names are used by multiple distinct companies and universities. Download the 2026 Patent Data Quality Handbook Bad patent data leads to bad decisions. When company names are misspelled, ownerships misattributed, or acquisitions missed, entire R&D priorities, investments, and partnerships can go off course. Our patent data quality handbook explains how LexisNexis rebuilds trust in patent data through meticulous global data harmonization—turning fragmented records into structured data that leaders can act on with confidence. Read now Female scientist analyzing medical sample in test tube. Young researcher is wearing lab coat. She is concentrating while working in laboratory. Why patent data quality matters Patent analytics is only as strong as the data behind it. Clean, harmonized data empowers you to: Benchmark portfolios with confidence Detect competitors and new entrants Identify litigation risks and enforcement patterns Support high-stakes decisions in M&A, licensing, and strategy Earn confidence in the boardroom Trusted data for high-stakes decisions Bring audit‑ready IP metrics in front of executives and investors. The same harmonized datasets that power our platforms also support boardroom discussions, investor communications, and regulatory filings, so results are transparent, explainable, and defensible when the stakes are highest. Our verification spans ultimate ownership, legal status, and standardized bibliographic fields, backed by large‑scale automation and expert curation. The same trusted data that underpins our platforms is used in litigation, licensing negotiations, and regulatory disclosures. It is auditable, transparent, and defensible—giving leaders the confidence to rely on it in investor communications, sustainability reports, and executive decision-making. See how companies are bringing IP into the boardroom with trusted LexisNexis data Explore how leaders bring IP to the boardroom Explore how trusted IP data builds confidence in the boardroom: Test Video TranscriptRead more Read more Read more Frequently Asked Questions (FAQs) Why is patent data quality such a critical issue? Patent data is fragmented across national and international patent authorities worldwide. Without harmonization, misspellings, outdated names, incomplete ownership records, and reassignment gaps can distort analytics, valuations, due diligence, and strategy. How does LexisNexis work on ownership attribution? LexisNexis uses a multi-stage process to assign every patent to its ultimate commercial owner. In the first, largely automated step, proprietary algorithms match patent data to corporate trees using corporate structure databases, patent register information, and primary research. A dedicated team of more than 10 experienced researchers then reviews the results, examining documents in their original national languages. Patents filed by subsidiaries are linked to their parent company, historical name changes are reconciled, and completed M&A deals are reflected in near real-time. The entire process is carried out every week. What is an ultimate owner, and why does it matter? An ultimate owner is the highest-level corporate entity that controls a patent portfolio. Harmonizing patents to the ultimate owner gives a clearer view of competitors, portfolio strength, M&A impact, and market position. How frequently is the data updated? Patent data is updated every week with new data deliveries from the European Patent Office, and our research team harmonizes the incoming data each week. Major announced M&A deals are monitored until they are completed or called off. In 2025 alone, our team tracked over 1,100 M&A activities, and completed deals are reflected in portfolios and corporate trees in near real-time. What makes LexisNexis different from other providers? LexisNexis Intellectual Property Solutions does more than aggregate public patent records. Our multi-stage data quality process combines proprietary algorithms with a dedicated team of experienced researchers who review documents in their original national languages. They draw on corporate structure databases, patent register information, and primary research to assign patents to their ultimate commercial owner, across 95M+ patent families and other IP rights and 24K+ ultimate owners. Every week, the team also checks for unusual changes in portfolio sizes that may signal reassignments or sales, so you can work from cleaner, more reliable patent intelligence. Can I integrate harmonized data into my own systems? Yes. LexisNexis Intellectual Property Solutions offers secure data access options that help you integrate harmonized patent, ownership, legal status, litigation, and standards-related data into dashboards, BI tools, and proprietary AI/LLM workflows. Learn more about LexisNexis Data Solutions and how they support seamless integration into your environment. How does harmonization support decision-making in M&A or litigation? Clean ownership data helps identify who controls relevant patent assets, how portfolios change after acquisitions or reassignments, and where litigation or enforcement exposure may exist. This gives teams a more reliable basis for due diligence, negotiation, risk analysis, and executive reporting. More Resources 5 Consequences of Patent Data Errors: The Applicant Name FieldPatent data quality is crucial for ensuring reliable analytics. In this blogpost we discuss five consequences of patent data errors.Read more Data and Decisions: The Risks in Relying on Inaccurate Patent DataIf organizations base critical business decisions on inaccurate patent data, they may experience negative business results.Read more Read more 6 Common Patent Data Errors and How They Affect Your DecisionsWe explored the impact of common patent data errors in one of the most problematic fields for patent data: the applicant name field. Read more
