Access Control Patents: Who Leads, Where the Gaps Are 2026
- 45.3% sits with five companies. The top 5 assignees account for 185 of the 408 records in scope — filing here means competing directly with entrenched claim portfolios, not empty ground.
- Filing peaked in 2017 and hasn't returned. Annual filings ran from 45 in 2017 to 11 by 2026, with the 2022 midpoint at 17 — a field that grew fast, then plateaued rather than accelerated.
- G07C dominates, but the interesting overlap is elsewhere. 74.0% of records sit in G07C (time/attendance and checking devices), while H04L, H04W and G06F each cover a quarter to a third — most inventions now straddle physical access and networked identity.
What this landscape covers
Access control and identity verification spans physical credential readers, mobile and wearable-based authentication, and the backend systems that decide who gets through a door. The 408 records in scope were pulled using a search string combining access-control system language with multi-factor authentication, anti-passback, mobile credential and tailgating-detection concepts, filtered to G07C9, G06F21 and H04L9 classifications. This is a mature, security-hardware-adjacent field where physical lock mechanisms increasingly carry networked identity logic.
Filing activity runs from 2015 through the 2026 data cut-off, though the most recent year is understated because publication typically lags filing by around 18 months. Family-level counting is used throughout so that continuation filings and multi-jurisdiction refiling in a single invention do not inflate the picture.
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Filing trend and technology composition
Two views of the same 408-record dataset: how filing volume has moved year over year, and how those records distribute across IPC subclasses.
A field that peaked and flattened
Annual filings climbed to a peak of 45 in 2017, fell to 17 by the 2022 midpoint, and stood at 11 in 2026 (a partial year). That trajectory reads as flat-to-declining rather than a technology still in its growth phase — later entrants are filing into a claim space that was largely staked out between 2015 and 2019.
Physical access dominates, but overlaps carry the newer claims
G07C (time/attendance and checking devices) covers 74.0% of the 408 records, confirming this is fundamentally a physical-access field. H04L (digital transmission, 35.0%), H04W (wireless networks, 28.4%) and G06F (digital data processing, 27.9%) each cover a substantial share, meaning most inventions combine a physical gate mechanism with networked or mobile identity logic rather than sitting in one class alone. Smaller classes — E05B locks (6.9%), G06Q commerce/admin (6.6%), G06K recognition (5.6%) and G08B alarms (5.1%) — mark narrower niches with far less claim density.
Shares are the percentage of the 408 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Access Control and Identity Verification Systems with Eureka
This page is one run against one query. Ask Eureka your own question about access control and identity verification systems and every answer comes back with the patent numbers behind it.
Try EurekaThe most-cited records in this dataset
Multi-factor authentication for access control using a wearable device (US20210184858A1)
A system and method for providing multi-factor authentication for access through a door, but without the user having to repeat a physical act of providing authentication every time that the door is opened, wherein the first time through the door, multi-factor authentication is provided to the access control system, and wherein each subsequent access through the door, multi-factor authentication is performed automatically and without intervention of the user as long as the user has a wearable device providing at least one factor of the multi-factor authentication, and the user has not removed the wearable device since the multi-factor authentication was last provided to the access control system.Filed by Prodata Key, LLC — published 2021-06-17.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20140292481A1 | Wireless access control system and related methods | 307 |
| 2 | US5204663A | Smart card access control system | 304 |
| 3 | US20140077929A1 | Wireless access control system and related methods | 250 |
| 4 | US5475378A | Electronic access control mail box system | 182 |
| 5 | US9057210B2 | Wireless access control system and related methods | 179 |
| 6 | US20180262891A1 | Electronic access control systems and methods using near-field communications, mobile devices and cloud compu… | 138 |
| 7 | US20160343187A1 | Frictionless Access System for Public Access Point | 119 |
| 8 | US9336637B2 | Wireless access control system and related methods | 114 |
| 9 | US20190286832A1 | Securely accessing and processing data in a multi-tenant data store | 92 |
| 10 | US20200100108A1 | Wireless access credential system | 84 |
Citation counts inside a searched corpus favour older filings, since they have had more time to accumulate citations — read these as markers of influence on the field's vocabulary, not as an indicator of current commercial importance.
Each row carries its publication number; clicking a row searches Eureka by that number.
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Browse MCP servers →What the data means for a filing decision
Three patterns worth acting on before drafting new claims or scoping freedom-to-operate in this space.
The top of the field is crowded
With 185 of 408 records held by five companies, and 62.0% held by ten, new entrants filing broad access-control claims are almost certainly filing over occupied ground. Differentiation needs to sit in a specific mechanism or integration point, not a general system claim.
Growth has already happened
The filing curve peaked in 2017 and has declined since, with the 2022 midpoint at 17. Recent-year momentum among several tracked leaders shows zero filings in the latest year, consistent with a field where core mechanisms are now defended by maintenance rather than fresh filing.
Physical mechanism still anchors the claims
Even as wireless and mobile-credential language shows up across H04W and G06F classes, the checking-device mechanics of G07C remain the anchor classification for the large majority of filings. Claims that skip the physical gate entirely and focus purely on identity logic sit in a thinner, less contested zone.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to access control and identity verification systems, with the prior art for and against each one.
Who holds the ground, and where the gaps sit
The assignee ranking covers 100 companies drawn from the 408 records in scope — this is the full ranking the data endpoint returns, not a curated top list. It shows a small number of holders with deep filing histories and a long tail with one or two filings each.
A single leader well ahead of fifth place
The leading assignee holds 57 records against 29 at fifth place and 9 at tenth — a steep drop-off that marks this as a field with one dominant incumbent rather than a tight cluster of equals.
Incumbents have gone quiet recently
Several of the most prominent historical filers show zero filings in the latest tracked year, including one recording a -100% year-on-year change. That is consistent with the broader flattening trend rather than any single company's retreat.
Filing is concentrated in the US, then fragmented
The United States accounts for 205 records, more than three times the next-largest office. Europe, India, China, WIPO and Canada each hold a meaningfully smaller slice, suggesting most applicants treat the US as the primary market and file selectively elsewhere.
| Assignee | Recent year | YoY |
|---|---|---|
| Carrier Corp | 0 | — |
| ASSA ABLOY AB | 0 | — |
| Schlage Lock Co LLC | 0 | -100% |
| Tyco Integrated Security | 0 | — |
| UNIKEY TECHNOLOGIES INC | 0 | — |
| Honeywell International Inc | 0 | — |
| Schweitzer Engineering Laboratories Inc | 0 | — |
| Aerendir Mobile Inc | 0 | — |
Where to take this analysis
The dataset points to specific next steps depending on whether the goal is drafting, freedom-to-operate, or competitive tracking.
Scope a freedom-to-operate check on wearable re-authentication
The representative filing on wearable-based continuous multi-factor authentication shows how a single mechanism claim can sit close to core physical access logic. Before drafting nearby claims, map which of the top 10 assignees hold adjacent continuation filings.
Explore this branch in EurekaTrack incumbent filing pauses for re-entry signals
Several leading assignees show zero filings in the latest year. A pause is not the same as exit — watch for renewed filing activity or acquisition moves before assuming the ground is uncontested.
Monitor assignee activity in EurekaTest claim language against the G06Q and G08B overlap
Business-rule-driven access and alarm-integrated systems carry the lowest record shares in this dataset. That thinner density is worth verifying against full claim text before treating it as open space.
Run a claim-language search in EurekaCommon questions about this landscape
The dataset ranks 100 assignees across 408 records, with the leading company holding 57 records against 29 at fifth place and 9 at tenth. The top five assignees combined hold 185 records, or 45.3% of all records in scope, and the top ten hold 62.0%. That steep drop-off from leader to fifth place indicates one dominant incumbent rather than a handful of evenly matched competitors, so a competitive review should weight the leader's portfolio heavily rather than treating the ranked group as a flat field.
No — filing activity peaked at 45 records in 2017 and has since declined, sitting at 17 by the 2022 midpoint and 11 in 2026, a partial year. This pattern suggests the core mechanisms were staked out earlier in the period and later filings are refinements or extensions rather than a new wave of foundational claims. Because publication lags filing by roughly 18 months, the 2026 figure will rise somewhat as more records publish, but the overall downward trend from 2017 is unlikely to reverse based on this data alone.
G07C, covering time/attendance and checking devices, anchors 74.0% of the 408 records, confirming this is fundamentally a physical-access-hardware field. But H04L (digital transmission, 35.0%), H04W (wireless networks, 28.4%) and G06F (digital data processing, 27.9%) each cover a substantial share, showing that most modern filings combine a physical gate mechanism with networked or mobile identity logic. Smaller classes like E05B (locks), G06Q (business/admin) and G08B (alarms) mark narrower niches with considerably less filing density.
US20210184858A1, filed by Prodata Key, LLC and published 2021-06-17, claims a method for multi-factor authentication at a door where the first pass through requires full multi-factor verification, but subsequent passes are authenticated automatically via a wearable device the user has not removed since the last full authentication. The specific mechanism protected is the automatic-continuation logic tied to wearable presence, not multi-factor authentication generally. Anyone building continuous or passive re-authentication for physical access should review this claim scope closely before assuming the space is open.
Based on record counts across IPC subclasses, the thinnest coverage in this dataset sits in E05B (locks and keys, 6.9%), G06Q (business/admin logic, 6.6%), G06K (data recognition, 5.6%) and G08B (alarms, 5.1%), compared with the dense G07C/H04L/H04W overlap that carries most filings. Sub-areas like anti-passback logic for mixed credential fleets, tailgating detection using sensor fusion, and business-rule-driven access decisions show comparatively less filing density. Thinner density is a starting signal, not a guarantee — a full freedom-to-operate search against claim text is still necessary before filing there.
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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.