B01D 67/0027
By stretching
Official title: {by stretching}
B01D67/0027 (By stretching) appears on 350 US grants and 362 published applications in this corpus.
Search patents in B01D- Granted patents
- 350
- Published applications
- 362
- Assignees
- 173
- Inventors
- 825
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 2 | 0 |
| 1989 | 6 | 0 |
| 1990 | 5 | 0 |
| 1991 | 7 | 0 |
| 1992 | 3 | 0 |
| 1993 | 12 | 0 |
| 1994 | 6 | 0 |
| 1995 | 6 | 0 |
| 1996 | 6 | 0 |
| 1997 | 10 | 0 |
| 1998 | 12 | 0 |
| 1999 | 9 | 0 |
| 2000 | 9 | 0 |
| 2001 | 8 | 1 |
| 2002 | 5 | 8 |
| 2003 | 4 | 10 |
| 2004 | 7 | 7 |
| 2005 | 4 | 12 |
| 2006 | 7 | 11 |
| 2007 | 5 | 16 |
| 2008 | 10 | 13 |
| 2009 | 6 | 30 |
| 2010 | 13 | 15 |
| 2011 | 10 | 16 |
| 2012 | 9 | 11 |
| 2013 | 7 | 19 |
| 2014 | 17 | 18 |
| 2015 | 7 | 13 |
| 2016 | 7 | 20 |
| 2017 | 14 | 15 |
| 2018 | 8 | 12 |
| 2019 | 11 | 12 |
| 2020 | 6 | 17 |
| 2021 | 13 | 16 |
| 2022 | 15 | 8 |
| 2023 | 8 | 19 |
| 2024 | 13 | 20 |
| 2025 | 9 | 10 |
| 2026 | 7 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Nanoparticle filtration membrane and the manufacturing method thereof16 Jun 2026US 12,654,135 B2Cabomba LLC
- Polyethylene microporous membrane, method for manufacturing the same, and separator including microporous membrane21 Apr 2026US 12,609,412 B2SK ie technology Co., Ltd.
- Separation membrane and manufacturing method therefor3 Mar 2026US 12,564,817 B2Toray Industries, Inc.
- Preparation method for high-moisture- permeability fluorine-containing super- oleophobic microporous membrane3 Mar 2026US 12,564,818 B2Shanghai Hyproof New Material Technology Co., Ltd
- Hollow fiber membranes with polydiorganosiloxane polyoxamide copolymer skin layer and methods of making and using the same24 Feb 2026US 12,558,654 B23M Innovative Properties Company
- Polyolefin microporous membrane13 Aug 2026US 2026/0233173 A1Teijin Limited
- Porous Polymer Film2 Jul 2026US 2026/0184864 A1SK ie technology Co., Ltd.
- Catalytic membrane and reactors comprising the same25 Jun 2026US 2026/0175202 A1W. L. Gore & Associates, Inc.
- Mechanically enhanced porous polyolefin composites in biaxial direction using fillers with high aspect ratio18 Jun 2026US 2026/0167787 A1Atera Water Pte Ltd
- Ptfe membrane, manufacturing method thereof, and filter4 Jun 2026US 2026/0151741 A1KOMEMTEC Co., Ltd.
Most cited
By later US patents
- Very highly stretched polytetrafluoroethylene and process therefor330US 3,962,153 AW. L. Gore & Associates, Inc. · 1976
- Porous PTFE materials and articles produced therefrom267US 7,306,729 B2Gore Enterprise Holdings, Inc. · 2007
- Porpous PTFE film and a manufacturing method therefor264US 5,476,589 AW. L. Gore & Associates, Inc. · 1995
- Orientied microporous film214US 4,867,881 AMinnesota Minning and Manufacturing Company · 1989
- Oil, water and sweat repellent microporous membrane materials136US 5,260,360 AMinnesota Mining and Manufacturing Company · 1993