B01D 2239/0241
Comprising electrically conductive fibres or particles
Official title: comprising electrically conductive fibres or particles
B01D2239/0241 (Comprising electrically conductive fibres or particles) appears on 117 US grants and 141 published applications in this corpus.
Search patents in B01D- Granted patents
- 117
- Published applications
- 141
- Assignees
- 97
- Inventors
- 323
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 6 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 2 |
| 2003 | 0 | 2 |
| 2004 | 2 | 5 |
| 2005 | 1 | 2 |
| 2006 | 1 | 6 |
| 2007 | 1 | 7 |
| 2008 | 3 | 3 |
| 2009 | 3 | 3 |
| 2010 | 0 | 6 |
| 2011 | 5 | 3 |
| 2012 | 3 | 0 |
| 2013 | 2 | 1 |
| 2014 | 2 | 3 |
| 2015 | 4 | 0 |
| 2016 | 1 | 5 |
| 2017 | 0 | 1 |
| 2018 | 2 | 4 |
| 2019 | 2 | 7 |
| 2020 | 2 | 7 |
| 2021 | 4 | 15 |
| 2022 | 9 | 19 |
| 2023 | 4 | 27 |
| 2024 | 8 | 5 |
| 2025 | 12 | 7 |
| 2026 | 5 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Anti-microbial filter18 Aug 2026US 12,708,690 B2Acell Industries Limited
- Face aerogel cover equipment9 Jun 2026US 12,649,070 B2
- Filtering facepiece respirator26 May 2026US 12,636,113 B2S.C.O.P.E. Medical, Inc.
- Honeycomb structure, exhaust gas purifying device and method for producing honeycomb structure13 Jan 2026US 12,523,167 B2NGK Insulators, Ltd.
- Filtering facepiece respirator6 Jan 2026US 12,514,666 B2S.C.O.P.E. Medical, Inc.
- Active force electric field anti-pathogenic fabric and associated method of fabrication26 Mar 2026US 2026/0083991 A1Florida A&M University
- Filter material comprising nanofiber layer and filter element composed of such filter material18 Sep 2025US 2025/0288928 A1
- Filter and method for manufacturing same21 Aug 2025US 2025/0262581 A1LG Electronics Inc.
- Patterned nanofiber arrays assembled through patterned filtration21 Aug 2025US 2025/0262597 A1Lintec of America, Inc.
- Air filter unit and use of the air filter unit in a motor vehicle19 Jun 2025US 2025/0196158 A1Mahle International GmbH
Most cited
By later US patents
- Method of making fibrous electrets241US 4,375,718 ASurgikos, Inc. · 1983
- Device for removal of contaminants from fluid streams235US 5,750,026 ACorning Incorporated · 1998
- Method and apparatus for the electrostatic charging of a web or film195US 5,401,446 AThe University of Tennessee Research Corporation · 1995
- Electret fiber sheet and method of producing same139US 4,874,659 AToray Industries, Inc. · 1989
- Electrically conducting filter media for fluids79US 3,933,643 AThe Carborundum Company · 1976