Silicone PSA Patents: Leaders, Filing Trends & White Space 2026
Silicone Pressure Sensitive Adhesive Patents: Who Holds the Claim Space
57.7% concentration. The five leading assignees together hold 1,703 of the 2,949 records in scope — the field is not fragmented at the top. Filings ran from 130 in 2017 to a peak of 152 in 2019, then eased through the early 2020s to 136 in 2021 and 43 in 2024 — a 68% decline over that three-year span. 2025 and 2026 figures are still incomplete because publication lags filing by roughly 18 months, so the true recent-year count is understated and should not yet be read as a continued fall.
- 13M INNOVATIVE PROPERTIES CO778
- 2DOW SILICONES CORP478
- 33M CO177
- 4GENERAL ELECTRIC CO137
- 5AVERY DENNISON CORP133
See the full silicone pressure sensitive adhesives 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 on silicone PSA patents
Who holds the most silicone pressure sensitive adhesive patents?
The dataset shows one assignee well ahead of the rest, holding 778 of the 2,949 records in scope, with the fifth-place company at 133. This gap is large enough that any new entrant should assume the leading player’s portfolio covers much of the core platinum-cure and MQ resin chemistry before drafting new claims. The next four companies bring the top-5 combined share to 57.7% of all records, so the concentration extends beyond just the single leader.
Is the silicone PSA patent filing trend increasing or declining?
Filings peaked in 2019 at 152 and had fallen to 43 by 2024, a 68% decline from the 2021 level of 136. That 2024 figure is the most recent year that can be treated as reasonably complete, because publication typically lags filing by around 18 months. The apparent drop in 2025 and 2026 in raw counts should not be read as a further decline — those years are still filling in.
What is the difference between C09J and C08L classifications in this space?
C09J covers adhesives directly and applies to 57.4% of the 2,949 records, making it the dominant classification in this corpus. C08L covers polymer compositions more broadly and applies to 16.3% of records — it captures the underlying silicone polymer chemistry rather than the adhesive application itself. A single filing often carries both classes, since a silicone PSA patent typically claims both the polymer formulation and its use as an adhesive.
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 Silicone Pressure Sensitive Adhesives 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.