PEEK Compounding Patents: Leaders, Trends & White Space 2026
Polyether Ether Ketone Compounding Patents
14.3% concentration at the top. The five leading assignees together hold 1,880 of the 13,182 records in scope — a real lead, not a runaway monopoly. Publications ran 714 in 2017 and peaked at 811 in 2018. The 2021-to-2024 window, the most recent stretch that can be read as complete once publication lag is accounted for, fell 45% — from 721 records to 394. Years after 2024 are still filling in and should not be read as a continued decline yet.
- 1TORAY INDUSTRIES INC6.4%
- 2DIC CORP2.2%
- 3NIPPON FILCON CO LTD2.0%
- 4NTN CORP1.9%
- 5DAIKIN INDUSTRIES LTD1.8%
See the full polyether ether ketone compounding 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 PEEK compounding patents
Who holds the most patents on PEEK compounding?
The ranked leader in this dataset holds 843 of the 13,182 records in scope, with the field then spreading out quickly — fifth place sits at 235 and tenth at 182. The top five assignees together account for 14.3% of all records, so while there is a clear leader, no single company controls the space. A freedom-to-operate search should still cover the full ranked list rather than assuming the leader’s portfolio is the only one that matters.
Is PEEK compounding patent activity still growing?
No — filings peaked at 811 records in 2018 and had fallen to 394 by 2024, a 45% drop over the 2021-2024 span, which is the most recent period clean of publication lag. Records from 2025 and 2026 are still incomplete because publication typically lags filing by around 18 months, so they should not be read as confirming a continued decline. The honest read is a cooling filing rate through the mid-2020s rather than an active technology in decline.
What technical areas get the most patent claims in PEEK compounding?
Polymer-composition claims under IPC class C08L lead at 24.5% of the 13,182 records, ahead of polymer processing (C08J) and additive use (C08K), each near 14.6%. Shaping methods (B29C) and laminate structures (B32B) follow in the 12-14% range. Bearing and shaft hardware built from PEEK, classified under F16C, makes up only 5.2% of records, meaning the crowded ground is in the material chemistry itself rather than in the finished parts.
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 Polyether Ether Ketone Compounding 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.