Encryption Implementation Patents: Who Leads, Where the Gaps Are 2026
Symmetric and Asymmetric Encryption Implementation Patents
1,804 families tracked, with filings peaking in 2025 at 168 after a flat-to-declining run from a 2022 midpoint of 109 — the field is well past its filing-growth phase. Annual filings rose from 62 in 2017 to a peak of 168 in 2025, passing through 109 at the 2022 midpoint. The declining 2026 figure reflects the publication lag rather than a genuine drop-off, but the shape from 2022 to 2025 shows the growth phase has already happened — new entrants now face a filed-up field rather than an open one.
- 1INTERNATIONAL BUSINESS MACHINE CORPORATION3.5%
- 2HUAWEI TECH CO LTD1.9%
- 3NIPPON TELEGRAPH & TELEPHONE CORP1.4%
- 4RISOFTDEV INC1.3%
- 5PAYPAL INC1.2%
See the full symmetric and asymmetric encryption implementation analysis in Eureka
- The complete ranking, not just the top five
- Every IPC branch with its share of the corpus
- The most-cited records, and where claim space is still thin
Common questions about encryption implementation patents
How many patents exist for symmetric and asymmetric encryption implementation?
This landscape tracks 1,804 published patent families filed between 2015 and mid-2026 within the scope of encryption algorithm implementation, key management, block cipher modes and digital signature schemes. Filings rose from 62 in 2017 to a peak of 168 in 2025. Because publication typically lags filing by around 18 months, the true count for 2025 and 2026 will end up higher once more filings publish.
Who are the leading patent holders in encryption implementation?
The leading assignees identified in this corpus include International Business Machines Corporation (IBM) (IBM), Huawei Technologies Co., Ltd. (Huawei), Nippon Telegraph and Telephone Corporation (NTT) (NTT), Thomson Licensing (Thomson), Rizoop Volt Deva Co. and 松下电器产业株式会社 (Panasonic). Notably, every one of these leaders shows zero filings in the most recent tracked year, which suggests either a strategic pause, a shift toward other protection routes, or a filing pattern still working through publication lag. None of them show recent growth, so historical volume should not be read as current momentum.
Where is the white space in encryption patent claims?
IPC subclasses with comparatively light filing density — including G09C (dedicated ciphering and secret communication) at 112 records and G06N (AI-based computation) at 52 — sit well below the dominant H04L and G06F classes. That gap points to under-claimed territory around AI-assisted key derivation, post-quantum key exchange scheduling, and crypto-agility negotiation between differing algorithm implementations. Confirm the gap is genuine white space rather than a technically avoided dead end before filing there.
Disclaimer. This analysis is based on Patsnap Eureka data drawn from a limited snapshot of global patent records and is provided for general information and reference only. Patent data carries inherent limitations — recent filings are under-counted because of publication lag, counts may be on a record or family basis, classification and applicant-name data may contain errors or duplicates, and the underlying search query defines the scope shown — so the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing here is an exhaustive prior-art, novelty, freedom-to-operate or validity search, nor does it constitute legal, financial or professional advice, and it should not be relied upon as such. Verify independently and review with qualified patent and legal professionals before acting on it.
Method: Filing trend and technology composition. Derived from a Patsnap search on Symmetric and Asymmetric Encryption Implementation covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish. Every share divides by all records in scope. Data: Patsnap Eureka. See the full landscape report.