B01D 2239/1208
Porosity
B01D2239/1208 (Porosity) appears on 225 US grants and 368 published applications in this corpus.
Search patents in B01D- Granted patents
- 225
- Published applications
- 368
- Assignees
- 221
- Inventors
- 834
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 4 |
| 2003 | 2 | 8 |
| 2004 | 4 | 5 |
| 2005 | 2 | 3 |
| 2006 | 2 | 5 |
| 2007 | 2 | 3 |
| 2008 | 2 | 6 |
| 2009 | 8 | 4 |
| 2010 | 6 | 5 |
| 2011 | 2 | 9 |
| 2012 | 3 | 10 |
| 2013 | 4 | 12 |
| 2014 | 7 | 5 |
| 2015 | 5 | 8 |
| 2016 | 5 | 13 |
| 2017 | 7 | 13 |
| 2018 | 4 | 16 |
| 2019 | 11 | 26 |
| 2020 | 14 | 26 |
| 2021 | 16 | 37 |
| 2022 | 19 | 36 |
| 2023 | 18 | 51 |
| 2024 | 20 | 30 |
| 2025 | 19 | 22 |
| 2026 | 12 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for adjusting grouting parameters in preparation of ceramic composite fiber-based catalytic filter tube, and method and device for preparing ceramic composite fiber-based catalytic filter tube6 Oct 2026US 12,752,223 B2Zhejiang Zhiyuan Environmental Technology Co., Ltd
- Method for manufacturing a metallic functional part delimiting a porous filtering medium, using an additive manufacturing method, and obtained functional part25 Aug 2026US 12,714,960 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Anti-microbial filter18 Aug 2026US 12,708,690 B2Acell Industries Limited
- Honeycomb filter26 May 2026US 12,636,603 B2NGK Insulators, Ltd.
- Porous structures and method of making28 Apr 2026US 12,611,839 B2Saint-Gobain Ceramics & Plastics, Inc.
- Composite materials3 Sep 2026US 2026/0257159 A1DelStar Technologies, Inc.
- Water filter and method of making the same23 Jul 2026US 2026/0208112 A1A. O. Smith Corporation
- Non-woven filter media with an acrylic & pp fiber layer and a nanofiber layer9 Apr 2026US 2026/0097340 A1Neenah Gessner GmbH
- Non-woven filter media with a meltblown and nanofibers9 Apr 2026US 2026/0097580 A1Neenah Gessner GmbH
- Filters with mechanical and electrostatic filtering capabilities2 Apr 2026US 2026/0091333 A1DelStar Technologies, Inc.
Most cited
By later US patents
- High performance gas filter assembly65US 4,877,433 A1989
- Conductive filter laminate54US 5,527,569 AW. L. Gore & Associates, Inc. · 1996
- Filter element and method for the manufacture thereof41US 5,728,298 ACuno Incorporated · 1998
- Methods for treating water41US 7,740,765 B2The Procter & Gamble Company · 2010
- Filter element and fabrication method for the same34US 5,755,963 ANippondenso Co., Ltd. · 1998