LexisNexis has coordinated an industry-wide effort among major telecommunications companies to improve the standardisation, cleaning, and verification of patent data.
Called “Cellular Verified,” the initiative brings together more than 30 leading firms that collectively hold a significant share of global 5G patents. Its goal is to tackle long-standing problems of inaccuracies, inconsistencies, and bias in patent declaration records so stakeholders can rely on clearer, more objective information.
Over the course of a year, LexisNexis Intellectual Property Solutions collaborated closely with top telecom participants to refine and standardise declared patent records. By matching, cleaning, enriching, and validating patent families against the European Telecommunications Standards Institute (ETSI) declaration database, the team reports achieving a 99.9 percent accuracy rate for the final dataset.
Addressing systematic bias
Patent declaration data has long been inconsistent, as companies submit information using different formats and levels of detail. Tim Pohlmann, Managing Director Americas and Director of SEP Analytics at LexisNexis Intellectual Property Solutions, notes that these variations in self-declaration drive systematic bias.
When declaration records are not rigorously standardised and verified, organisations that provide more complete and cleaner submissions appear to dominate analyses. This skews results used in licensing negotiations and FRAND (fair, reasonable, and non-discriminatory) determinations, creating real industry challenges.
LexisNexis positions Cellular Verified as a neutral, trusted source designed to support critical decisions. The initiative reflects participants’ collective commitment to delivering reliable, comprehensive patent declaration data that reduces ambiguity and enables fairer assessments.
Alan Fan, Vice President and Head of the IPR Department at Huawei, emphasised the practical benefits: collaborative work with LexisNexis on Cellular Verified has reduced gaps, redundancies, and errors in patent declaration data, improving licensing efficiency and helping companies concentrate on innovation and strategic growth.
Complexities of telecoms patent declarations
ETSI maintains a database of patents declared as essential to standards such as 2G, 3G, 4G, and 5G, a resource intended to support interoperability across networks and devices. The ETSI dataset comprises over 555,000 declared patent entries spanning roughly 100,000 patent families.
However, self-declaration practices introduce substantial mismatches. Some companies submit provisional numbers only, others list full portfolios including applications, granted patents, and jurisdictional equivalents, and many increasingly declare patents earlier in their lifecycle—sometimes before public disclosure.
These inconsistencies create an ambiguous dataset. Analyses of 4G and 5G patent ownership can therefore be biased: organisations that submit richer, cleaner declarations tend to be overrepresented while those with less-comprehensive submissions are undercounted, complicating licensing negotiations and FRAND rate-setting.
LexisNexis reports that about 40 percent of self-declared patent entries cannot be directly matched to normalised, cleaned patent records, and roughly 20 percent of matched entries may be false positives because patent numbers are ambiguous or inconsistent.
Cellular Verified process
In response, LexisNexis worked with more than 30 of the top ETSI-declaring companies to build a transparent, repeatable process for standardising patent declaration data. Cellular Verified relies on several core activities:
- Matching and cleaning data: Algorithms standardise patent numbers across formats and reconcile entries using feedback from participating companies, producing the high accuracy reported for the final dataset.
- Expanding family coverage: Missing family members and jurisdictional counterparts are identified to provide a fuller view of global patent portfolios.
- Classifying by technology generation: ETSI datasets are cross-referenced to accurately assign patents to relevant standards generations such as 2G, 3G, 4G, and 5G.
- Enhancing ownership records: Corporate ownership information is updated using corporate-tree data to resolve discrepancies caused by mergers, acquisitions, or reassignment.
The validated Cellular Verified database is updated on a weekly basis, ensuring stakeholders have timely access to improved records as declarations evolve or corrections are submitted.
LexisNexis demonstrated how iterative improvements in its matching algorithms steadily raised match rates from initial attempts through successive refinements to the final “Cellular Verified” status, illustrating the value of repeated validation and industry input.
With a standardised, impartial dataset, companies and other stakeholders gain a more accurate foundation for evaluating patent portfolios during licensing negotiations, benchmarking offers against comparable agreements, and planning FRAND-compliance strategies.
Beyond delivering a technical solution, the initiative highlights the power of collaboration: by engaging directly with industry leaders, LexisNexis has produced a patent data resource that benefits individual companies and strengthens transparency and trust across the telecommunications ecosystem.
(Photo by Anastase Maragos)
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