B01D 2325/0281
Fibril, or microfibril structures
B01D2325/0281 (Fibril, or microfibril structures) appears on 57 US grants and 82 published applications in this corpus.
Search patents in B01D- Granted patents
- 57
- Published applications
- 82
- Assignees
- 54
- Inventors
- 215
- Latest grant
- 27 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 2 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 1 | 3 |
| 2011 | 0 | 1 |
| 2012 | 2 | 1 |
| 2013 | 0 | 3 |
| 2014 | 0 | 2 |
| 2015 | 3 | 3 |
| 2016 | 2 | 3 |
| 2017 | 5 | 4 |
| 2018 | 1 | 2 |
| 2019 | 3 | 8 |
| 2020 | 3 | 12 |
| 2021 | 5 | 6 |
| 2022 | 8 | 4 |
| 2023 | 1 | 8 |
| 2024 | 6 | 4 |
| 2025 | 6 | 4 |
| 2026 | 2 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Air filter medium, pleated filter medium, air filter unit, mask filter medium, and method for regenerating air filter medium27 Jan 2026US 12,533,614 B2Daikin Industries, Ltd.
- Ceramic cation exchange materials6 Jan 2026US 12,515,176 B2Membrion, Inc.
- Polymer-based film, preparation method therefor, and use thereof14 Oct 2025US 12,440,808 B2Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
- Separation articles and methods for using the same for selectively removing difluoromethane from a gasesous mixture30 Sep 2025US 12,427,473 B2Chromis Fiberoptics, Inc.
- Efficient and stable magnetic nanofiber membrane and preparation method and use thereof30 Sep 2025US 12,427,485 B2Beijing Normal University, Zhuhai
- Porous membrane, filter member, and member supply assembly24 Sep 2026US 2026/0284605 A1Nitto Denko Corporation
- Ceramic cation exchange materials13 Aug 2026US 2026/0233171 A1Membrion, Inc.
- Catalytic membrane and reactors comprising the same25 Jun 2026US 2026/0175202 A1W. L. Gore & Associates, Inc.
- Ptfe membrane, manufacturing method thereof, and filter4 Jun 2026US 2026/0151741 A1KOMEMTEC Co., Ltd.
- Polyolefin filtration membrane and preparation method therefor30 Apr 2026US 2026/0115672 A1Hangzhou Cobetter Filtration Equipment Co., Ltd.
Most cited
By later US patents
- Porpous PTFE film and a manufacturing method therefor264US 5,476,589 AW. L. Gore & Associates, Inc. · 1995
- Polytetrafluoroethylene porous film and preparation and use thereof79US 5,234,739 ADaikin Industries, Ltd. · 1993
- Humidifier membrane34US 8,137,436 B2Lydall Solutech B.V. · 2012
- Porous polytetraflouroethylene and preparation24US 5,840,775 AE. I. Du Pont de Nemours and Company · 1998
- Porous polytetrafluoro-ethylene and preparation22US 5,939,198 AE. I. Du Pont de Nemours and Company · 1999