B29K 2027/18
Ptfe, i.e. polytetrafluoroethylene
Official title: PTFE, i.e. polytetrafluoroethylene {, e.g. ePTFE, i.e. expanded polytetrafluoroethylene}
B29K2027/18 (Ptfe, i.e. polytetrafluoroethylene) appears on 926 US grants and 883 published applications in this corpus.
Search patents in B29K- Granted patents
- 926
- Published applications
- 883
- Assignees
- 493
- Inventors
- 1,961
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 6 | 0 |
| 1978 | 9 | 0 |
| 1979 | 6 | 0 |
| 1980 | 10 | 0 |
| 1981 | 11 | 0 |
| 1982 | 4 | 0 |
| 1983 | 6 | 0 |
| 1984 | 7 | 0 |
| 1985 | 1 | 0 |
| 1986 | 7 | 0 |
| 1987 | 11 | 0 |
| 1988 | 4 | 0 |
| 1989 | 12 | 0 |
| 1990 | 15 | 0 |
| 1991 | 13 | 0 |
| 1992 | 16 | 0 |
| 1993 | 13 | 0 |
| 1994 | 18 | 0 |
| 1995 | 23 | 0 |
| 1996 | 22 | 0 |
| 1997 | 21 | 0 |
| 1998 | 25 | 0 |
| 1999 | 33 | 0 |
| 2000 | 27 | 0 |
| 2001 | 20 | 8 |
| 2002 | 18 | 18 |
| 2003 | 26 | 33 |
| 2004 | 20 | 24 |
| 2005 | 13 | 34 |
| 2006 | 10 | 36 |
| 2007 | 15 | 35 |
| 2008 | 11 | 49 |
| 2009 | 9 | 46 |
| 2010 | 32 | 60 |
| 2011 | 33 | 44 |
| 2012 | 34 | 29 |
| 2013 | 28 | 26 |
| 2014 | 32 | 28 |
| 2015 | 22 | 32 |
| 2016 | 22 | 46 |
| 2017 | 25 | 30 |
| 2018 | 22 | 27 |
| 2019 | 23 | 35 |
| 2020 | 27 | 33 |
| 2021 | 25 | 44 |
| 2022 | 21 | 46 |
| 2023 | 28 | 54 |
| 2024 | 34 | 29 |
| 2025 | 30 | 15 |
| 2026 | 17 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Manufacturing method for sealing gasket, and mold8 Sep 2026US 12,728,567 B2Hangzhou Ao Ke Mei Rui Technology Co., Ltd.
- Material based on polytetrafluoroethylene and process for preparing the same1 Sep 2026US 12,722,336 B2Shandong University
- Prosthetic surgical sling7 Jul 2026US 12,672,947 B2
- Tapered implantable device and methods for making such devices7 Jul 2026US 12,672,949 B2W. L. Gore & Associates, Inc.
- Resin component and manufacturing method thereof7 Jul 2026US 12,673,469 B2Laser Systems Inc.
- Prosthetic Surgical Sling8 Oct 2026US 2026/0306237 A1
- Preparation method for polytetrafluoroethylene composition, polytetrafluoroethylene composition, forming product, conductive pipe, heat conduction film, and substrate ccl3 Sep 2026US 2026/0258238 A1Daikin Fluorochemicals (China) Co., Ltd.
- A method of repairing pipe and tank surfaces using poly fill and ptfe coated e-glass fabric27 Aug 2026US 2026/0249572 A1
- High Flow Polystyrene Resins, Compositions Thereof and Methods of Making30 Jul 2026US 2026/0216930 A1Shpp Global Technologies B.V.
- Poly(arylene sulfide) resin composition, molded article, and production methods therefor23 Jul 2026US 2026/0209516 A1DIC Corporation
Most cited
By later US patents
- Process for producing porous products1,316US 3,953,566 AW. L. Gore & Associates, Inc. · 1976
- Porous products and process therefor909US 4,187,390 AW. L. Gore & Associates, Inc. · 1980
- Filter-catheter and method of manufacturing same541US 5,421,832 A1995
- Multi-layered poly(tetrafluoroethylene)/elastomer materials useful for in vivo implantation431US 4,816,339 ABaxter International Inc. · 1989
- Stented, radially expandable, tubular PTFE grafts345US 5,928,279 ABaxter International Inc. · 1999