Memory Safety Patents: Who Leads, Where the Gaps Are 2026
Memory Safety and Sanitization Patents: Filing Trends and Who Owns the Claims
Concentrated at the top. the five most active filers hold 220 of 347 records in scope (63.4%), and the ten most active hold 81.0%. Filings rose to a peak of 52 records in 2022 before falling from 48 (2021) to 12 (2024), a -75% move over that three-year span. 2025 and 2026 figures are still incomplete due to publication lag and should not be read as continued decline.
- 1INTEL CORP128
- 2THE TRUSTEES OF COLUMBIA UNIV IN THE CITY OF NEW YORK42
- 3MICROSOFT TECHNOLOGY LICENSING LLC20
- 4ARM LTD15
- 5GRAMMATECH INC15
See the full memory safety and sanitization 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 this landscape
Who holds the most patents in memory safety and sanitization?
One assignee leads the ranked field with 128 of the 347 records in scope, well ahead of the fifth-place filer at 15. The top five combined hold 220 records, or 63.4% of all records in scope, and the top ten hold 81.0%. The ranking covers 69 companies in total, spanning chipmakers, enterprise software vendors, and university research labs, so leadership is concentrated but the field is not a two-player race.
Is patent filing in memory safety and sanitization slowing down?
Filings peaked at 52 records in 2022 and then fell from 48 in 2021 to 12 in 2024, a drop of about 75% over that three-year span. However, publication typically lags filing by around 18 months, so the lower counts shown for 2025 and 2026 are incomplete rather than evidence of an actual slowdown. The safest complete-year comparison is the 2021-to-2024 figure, which does show a real pullback from the 2022 peak.
What technology areas do these patents actually cover?
Almost all records, 96.8% of the 347 in scope, carry a G06F classification for electric digital data processing, meaning most claims involve general-purpose computing architecture rather than dedicated memory chips. H04L, covering digital information transmission, is the next most common at 13.3%. Classes tied specifically to memory hardware (G11C) or measurement instrumentation (G01R) each appear on only about 1% of records, indicating those areas are far less crowded with prior art.
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 Memory Safety and Sanitization 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.