PTFE Processing Patents: Leaders, Trends & White Space 2026
Polytetrafluoroethylene Processing Patents: Who Leads and Where Filing Is Open
47.2% of all filings sit with just five assignees, a concentration that narrows the field's realistic partner and licensing pool fast. Filings ran from 38 in 2017 to a peak of 60 in 2019, then declined; the 2021-to-2024 span shows a 47% drop (36 to 19), the last complete-year comparison available before publication lag distorts the count.
- 1DAIKIN INDUSTRIES LTD15.7%
- 2EI DU PONT DE NEMOURS & CO10.4%
- 3WL GORE & ASSOC INC9.9%
- 4TORAY INDUSTRIES INC5.6%
- 5NTN CORP5.5%
See the full polytetrafluoroethylene processing technologies 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 PTFE processing patents
Who holds the most patents in polytetrafluoroethylene processing?
One assignee leads the ranked field with 201 of the 1,283 records in scope, well ahead of the fifth-place holder at 71 and tenth place at 24. The top five assignees combined hold 47.2% of all records, and the top ten hold 60.4%. This concentration means a small number of companies control most of the documented claim space around resin composition, paste extrusion and sintering process control.
Is PTFE processing patent activity growing or shrinking?
Filing activity peaked in 2019 at 60 records and has declined since; the clearest complete-year comparison, 2021 to 2024, shows a 47% drop from 36 to 19 filings. Figures for 2025 and 2026 are still incomplete because publication typically lags actual filing by around 18 months, so the most recent years should not be read as the final word on current activity. Taken together, the trend points to a cooling rather than an accelerating field over the last several complete years.
What are the main technology categories within PTFE processing patents?
The dataset’s IPC breakdown shows polymer compositions (C08L, 28.9% of the 1,283 records), addition polymers (C08F, 27.4%), polymer processing and solutions (C08J, 25.8%) and shaping of plastics (B29C, 24.3%) as the dominant classes. Additive use (C08K), sterilising and disinfecting (A61L), moulding materials (B29K) and layered products (B32B) each cover a smaller share, from about 8% to 12% of records. Because records can carry multiple IPC codes, these shares add up to more than 100% and should not be summed.
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 Polytetrafluoroethylene Processing Technologies 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.