F16F 2224/0291
Ptfe
F16F2224/0291 (Ptfe) appears on 11 US grants and 15 published applications in this corpus.
Search patents in F16F- Granted patents
- 11
- Published applications
- 15
- Assignees
- 14
- Inventors
- 41
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2014 | 0 | 2 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 1 | 2 |
| 2018 | 0 | 1 |
| 2019 | 1 | 2 |
| 2020 | 2 | 3 |
| 2021 | 1 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 1 |
| 2025 | 3 | 1 |
| 2026 | 0 | 1 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Rotary damper25 Nov 2025US 12,480,559 B2Claverham Limited
- Low-friction wear surfaces for sediment filtration system hydraulic damper23 Sep 2025US 12,422,014 B1LiquiTech, Inc.
- Torsional vibration damper comprising a friction device3 Jun 2025US 12,320,393 B2Schaeffler Technologies AG & Co. KG
- Dampener for an exit device20 Feb 2024US 11,905,733 B2ASSA ABLOY Accessories and Door Controls Group, Inc.
- Torsional vibration damper20 Sep 2022US 11,448,092 B2Pratt & Whitney Canada Corp.
- Low-Friction Wear Surfaces for Sediment Filtration System Hydraulic Damper17 Sep 2026US 2026/0276051 A1LiquiTech, Inc.
- Sealing System and Method for Pressurized Sand Damper13 Mar 2025US 2025/0084909 A1Southern Methodist University
- Air spring assembly11 Jul 2024US 2024/0229889 A1Fox Factory, Inc.
- Torsional vibration damper comprising a friction device16 Feb 2023US 2023/0048844 A1Schaeffler Technologies AG & Co. KG
- Torsional vibration damper22 Jul 2021US 2021/0222585 A1Pratt & Whitney Canada Corp.
Most cited
By later US patents
- Hydraulic damper with a hydraulic stop arrangement3US 10,603,974 B2Beijingwest Industries Co., Ltd. · 2020
- Three dimensional lattice weaves with tailored damping properties1US 10,253,836 B2The Johns Hopkins University · 2019
- Variable damping system using a piezoelectric device1US 9,777,792 B2GM Global Technology Operations LLC · 2017