Silane Coupling Agent Patents: Top Filers & Filing Trends 2026
Silane Coupling Agent Surface Treatment Patents: Who Files, What They Claim
15.5% concentration at the top. The five leading assignees hold 1,639 of 10,571 records in scope — a real lead, but not a lock on the field. Filings climbed from 429 in 2017 to a peak of 493 in 2020, then declined to 225 by 2024 — a 43% drop across the 2021-to-2024 span. Treat 2025 and 2026 figures as incomplete rather than as evidence of a continued fall, since publication typically lags filing by around 18 months.
- 1FUJIFILM CORP3.7%
- 2SUMITOMO BAKELITE CO LTD3.5%
- 3SHIN ETSU CHEMICAL CO LTD3.4%
- 4OWENS CORNING INTELLECTUAL CAPITAL LLC2.6%
- 5KANEKA CORP2.3%
See the full silane coupling agent surface treatment 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 are the leading patent holders in silane coupling agent surface treatment?
The ranking covers 100 companies drawn from 10,571 records, with the leading assignee holding 392 records and the fifth-ranked holding 238. The top five combined account for 15.5% of all records in scope, which is a meaningful lead but leaves the large majority of filings spread across a long tail of other companies. Names in this space span specialty chemical majors, glass and glass-fiber producers, and electronics materials suppliers, reflecting how many industries rely on this interface chemistry.
Is patent filing for silane coupling agents growing or declining?
Filings rose from 429 in 2017 to a peak of 493 in 2020, then fell to 225 by 2024 — a documented 43% decline over that three-year span. Figures for 2025 and 2026 appear lower still, but that reflects publication lag rather than a real collapse in activity, since patent publication typically trails filing by about 18 months. The honest read is a chemistry that grew through the late 2010s and has since cooled from its 2020 peak, with the very latest data still incomplete.
Which technology areas get the most silane coupling agent patent claims?
Polymer composition claims (IPC class C08L) appear in 32.4% of the 10,571 records, and additive-use claims (C08K) appear in 26.8%, making these the two most heavily claimed areas. Condensation polymers (C08G) and layered products (B32B) follow at 19.0% and 16.4% respectively. Because a single record can carry multiple IPC classes, these shares add up to more than 100%, but the ranking is a reliable guide to where claim density is highest.
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 Silane Coupling Agent Surface Treatment 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.