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Run your analysis now →https://www.patsnap.com/resources/blog/rd-blog/v2x-security-and-certificate-management-patent-landscape/ · Patsnap · data cut-off 2026-07-31 · downloaded from the live page
Connected Vehicles & V2X · Patent LandscapeV2X Security and Certificate Management Patents: Who Holds the Pseudonym Certificate Claims
- Top 5 filers hold 66.1% of all 280 records in scope — a small group has locked up most of the pseudonym-certificate and misbehavior-detection claim space.
- Filings fell 65% from 55 in 2021 to 19 in 2024, the last year with a complete publication record.
- Wireless and transmission classes dominate H04W and H04L each cover more than half of all 280 records, while ciphering-specific G09C filings sit under 3%.
280
Published Records
66%
Top-5 Share of All Records
-65%
Filing Growth 2021→2024
US
Leading Jurisdiction
Filing growth compares 2021 (55 records) with 2024 (19) — a three-year span. 2024 is the most recent year we treat as complete: publication lags filing by roughly 18 months, so 2025 onwards are still filling in and any growth rate that ends there would understate the field. Top-5 share is the combined record count of the five largest assignees divided by all 280 records in scope (CR5), not by the ranked leaders only.
Published byPatsnap Research··6 min readSourced from Patsnap Eureka
Overview
What this landscape covers
This dataset tracks patent activity at the intersection of pseudonym certificate management, misbehavior detection and certificate revocation for vehicle-to-everything (V2X) communication. It spans records published between 2015 and mid-2026 that combine credentialing mechanics — pseudonym change, enrollment credentials, secure onboard storage, message signing — with the security infrastructure that manages them across onboard units and roadside infrastructure.
The 280 records in scope sit mostly in wireless-network and digital-transmission classifications, reflecting that most claims describe how certificates move through the V2X stack rather than the cryptographic primitives themselves. Filing concentrated heavily among a handful of assignees, then declined sharply after 2021 — a pattern worth reading carefully given the 18-month lag between filing and publication.
Filing activity and technology composition, 2017–2026
Source: Patsnap Eureka. Assignee ranking and totals. Derived from a Patsnap search on V2X Security and Certificate Management covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
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The data
Filing trends and technology composition
Two views of the same 280 records: how filing activity has moved year over year, and which IPC subclasses the claims fall into.
A sharp rise, then a pullback
Filings climbed from 11 in 2017 to a peak of 60 in 2023, then dropped to 19 by 2024 — a 65% decline from the 2021 level of 55. Because publication lags filing by roughly 18 months, 2025 and 2026 figures are still incomplete and should not be read as confirmation that the field is winding down.
Concentrated in wireless and transmission classes
H04W (wireless communication networks) and H04L (digital information transmission) each appear in roughly half of the 280 records, since certificate and misbehavior-detection claims are typically framed as network protocol operations. G08G (traffic control) and G06F (data processing) form a secondary tier, while ciphering-specific G09C and vehicle-control B60W classifications are comparatively rare — a sign that most applicants claim the messaging layer, not the cryptographic core or the vehicle dynamics layer.
Shares are the percentage of the 280 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Source: Patsnap Eureka. Filing trend and technology composition. Derived from a Patsnap search on V2X Security and Certificate Management covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.
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Most-cited records in this space
Representative recent filing
Token-based Vehicular Security System (US20250128676A1)
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
Filed by The Regents of the University of California, this application describes a token-based vehicular security system that issues pseudonym certificates from roadside units with low latency, while providing an unforgeability guarantee without breaking anonymity or unlinkability properties.Published 2025-04-24 — illustrates how certificate-issuance latency and anonymity guarantees are now being claimed together rather than as separate mechanisms.
Highest-citation records
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20070223702A1 | Digital certificate pool | 111 |
| 2 | US20240323657A1 | Misbehavior detection using data consistency checks for collective perception messages | 110 |
| 3 | US20080232595A1 | Vehicle Segment Certificate Management Using Short-Lived, Unlinked Certificate Schemes | 91 |
| 4 | US10579974B1 | Systems, methods, and program products for a distributed digital asset network with rapid transaction settlem… | 82 |
| 5 | US9736145B1 | Generation and validation of derived credentials | 64 |
| 6 | US20210336797A1 | Methods Of Using Certificate-Based Security With Drone Identity And Broadcasting | 50 |
| 7 | US20240323034A1 | System and method for extended attributes in certificates for dynamic authorization | 46 |
| 8 | US20190312896A1 | Misbehavior protection for connected vehicle communication | 41 |
| 9 | US11882117B1 | System and method for device label scan based zero touch device onboarding and device directory service | 39 |
| 10 | US20220080977A1 | Systems and methods to manage vehicles under anomalous driving behavior | 38 |
Ranked by citation count within the searched corpus; older records accumulate citations over more years, so treat this as a signal of influence rather than current relevance.
Each row carries its publication number; clicking a row searches Eureka by that number.
Source: Patsnap Eureka. Citation counts and representative records. Derived from a Patsnap search on V2X Security and Certificate Management covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
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What the numbers mean for a filing decision
Three findings that shape where a new application is likely to face prior art, and where it is not.
Concentration
66.1% of 280
held by top 5 assignees
Claim space is crowded at the top
The five leading assignees together account for 185 of the 280 records in scope. A new filing targeting core pseudonym-certificate issuance or revocation mechanics is likely to run into dense prior art from this group before it reaches examination.
Top 5 combined, 280-record base
Momentum
-65% (2021→2024)
filing decline, last complete years
Growth peaked in 2023, then reversed
Filings rose steadily through the late 2010s, peaked at 60 in 2023, and fell to 19 by 2024. Several leading assignees show zero filings in the latest year, though the 18-month publication lag means the most recent two years are still filling in.
2021 = 55, 2024 = 19
Technology mix
54.3% H04W · 2.1% G09C
share of 280 records
Protocol claims outnumber cryptographic-primitive claims
Over half of all records touch wireless network classifications, while only 2.1% sit in the ciphering-specific G09C class. Applicants are largely claiming how certificates move through the V2X messaging stack, not the underlying cryptographic constructions.
H04W 152 records, G09C 6 records
Eureka AI Agent
Looking for what nobody has claimed yet?
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to v2x security and certificate management, with the prior art for and against each one.
Source: Patsnap Eureka. Co-assignee relationships and derived observations. Derived from a Patsnap search on V2X Security and Certificate Management covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
Players
Who is filing, and where the field is still open
The ranked leaders span automotive OEMs, telecom equipment makers and dedicated V2X security vendors, but momentum has cooled across nearly all of them in the latest tracked year.
Leader
93 records
single-largest filer
One assignee holds a outsized share
The leading assignee's 93 records dwarf the fifth-place total of 16, showing that concentration is not evenly spread even within the top tier — the gap between first and fifth place is itself a signal of where freedom-to-operate risk is highest.
Leader vs. 5th place: 93 vs. 16
Long tail
80.7% of 280
held by top 10
Past the top 10, filings thin out fast
The top 10 assignees account for 226 of the 280 records. The remaining 40 ranked companies split the rest, suggesting that most new entrants file only once or twice rather than building a sustained portfolio in this space.
Top 10 combined, 280-record base
Momentum
0 in latest year
across several leading assignees
Recent activity has gone quiet among leaders
Multiple top assignees, including the leading filer, show zero recorded filings in the latest tracked year and year-over-year declines of -100%. Given publication lag, this likely understates true recent activity but still marks a clear pullback from the 2021–2023 peak.
Multiple leaders at -100% YoY
Recent-year filing momentum
| Assignee | Recent year | YoY |
|---|---|---|
| Qualcomm Inc. | 0 | -100% |
| BlackBerry Ltd. | 0 | — |
| KUMAR SRINIVAS | 0 | — |
| Telcordia Technologies Inc. | 0 | — |
| LG Electronics Inc. | 0 | -100% |
| Canon KK | 0 | — |
| Toyota Motor Engineering & Manufacturing North America Inc. | 0 | — |
| Integrity Security Services LLC | 0 | — |
Source: Patsnap Eureka. Assignee-level momentum. Derived from a Patsnap search on V2X Security and Certificate Management covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
What's next
Where to take this next
The dataset points to specific next steps depending on whether the goal is freedom-to-operate, portfolio strategy, or spotting where to file.
Check freedom-to-operate against the top 5
With 66.1% of all 280 records held by five assignees, any new pseudonym-certificate or revocation-list filing should be checked against this group's claims before drafting.
Run a clearance search in Eureka →Watch the misbehavior-detection sub-branch
Recent high-citation records show misbehavior detection using data consistency checks gaining attention alongside classic certificate-pool approaches — a branch worth monitoring for new entrants.
Track this branch in Eureka →Reassess after the next publication cycle
Because 2025–2026 filings are still incomplete, revisit the trend once the 18-month publication lag has cleared to confirm whether the 2024 decline persists.
Set a monitoring alert in Eureka →Source: Patsnap Eureka. Forward-looking reading of the same dataset. Derived from a Patsnap search on V2X Security and Certificate Management covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
FAQ
Common questions about this landscape
Filing is heavily concentrated: the top five assignees together hold 185 of the 280 records in scope, or 66.1% of the field, and the leading single assignee alone accounts for 93 records. That gap between the leader and even the fifth-place filer (16 records) means most freedom-to-operate risk in pseudonym-certificate and revocation claims sits with a small handful of companies rather than being spread evenly across the field. Anyone assessing risk should start with this small group before looking at the long tail of single-filing entrants.
Filings rose from 11 in 2017 to a peak of 60 in 2023, then fell to 19 by 2024 — a 65% decline over that three-year window. However, publication typically lags filing by about 18 months, so the 2025 and 2026 figures in any dataset are still incomplete and should not be read as proof the field is cooling. The safest complete comparison right now is 2021 to 2024, and that comparison does show a real pullback from the 2023 peak.
Over half of the 280 records fall under H04W (wireless communication networks, 54.3%) and H04L (digital information transmission, 52.5%), meaning most claims describe how certificates and misbehavior reports move through the V2X messaging stack. Traffic control (G08G) and general data processing (G06F) form a secondary tier around 15% each. Cryptographic-primitive classifications like G09C appear in only 2.1% of records, suggesting the field claims protocol behaviour far more often than the underlying cipher mechanics.
US20250128676A1, filed by The Regents of the University of California, describes a token-based vehicular security system that issues pseudonym certificates from roadside units with low latency while providing an unforgeability guarantee without violating anonymity or unlinkability properties. It combines certificate issuance speed with formal anonymity guarantees in a single mechanism, rather than treating them as separate design goals. Anyone building low-latency certificate issuance for roadside infrastructure should review this claim scope closely, since it sits at the intersection of two features usually claimed separately in older records.
Comparatively thin areas include cross-domain linkage-attack mitigation, onboard secure storage key rotation, and ciphering-layer primitives specific to V2X, which sit at only 2.1% of records under G09C despite being foundational to the field. Vehicle-control-integrated credential revocation under B60W is similarly light at 3.2%. These branches are under-claimed relative to the dense coverage of core pseudonym-certificate and misbehavior-detection mechanics, making them worth checking before assuming the field is fully occupied.
Answers are grounded in the same dataset. Derived from a Patsnap search on V2X Security and Certificate Management covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
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Disclaimer. This page is generated from Patsnap Eureka data drawn from a limited snapshot of global patent and scientific-literature records, and is provided for general information and reference only.
Patent data carries inherent limitations: recent filings (typically the most recent 18–24 months) are under-counted due to standard publication lag; counts may be reported at either a patent-family or a patent-record basis and are not always directly comparable; classification, applicant-name, and citation data may contain errors, duplicates, or omissions; and the underlying search query defines and constrains the scope shown. As a result, the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing on this page constitutes an exhaustive prior-art, novelty, freedom-to-operate, or validity search, nor does it constitute legal, financial, investment, or professional advice, and it should not be relied upon as such. Any patent, commercial, or strategic decision should be verified independently and reviewed with qualified patent, legal, and domain professionals. Patsnap makes no warranties, express or implied, as to the accuracy, completeness, or fitness for any particular purpose of the information presented.
Machine translation. Assignee and organisation names originally recorded in Chinese, Japanese or Korean have been rendered into English by an AI translation step so that the tables stay readable. These renderings are best-effort and may not match a company's registered English name; the original name is what the underlying patent record carries, and it is what any Eureka query launched from this page uses.