B01D 2239/0659
The layers being joined by needling
B01D2239/0659 (The layers being joined by needling) appears on 107 US grants and 92 published applications in this corpus.
Search patents in B01D- Granted patents
- 107
- Published applications
- 92
- Assignees
- 81
- Inventors
- 271
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 5 | 0 |
| 1998 | 9 | 0 |
| 1999 | 6 | 0 |
| 2000 | 6 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 3 |
| 2003 | 1 | 6 |
| 2004 | 4 | 4 |
| 2005 | 1 | 2 |
| 2006 | 4 | 6 |
| 2007 | 0 | 2 |
| 2008 | 2 | 4 |
| 2009 | 0 | 5 |
| 2010 | 0 | 1 |
| 2011 | 7 | 5 |
| 2012 | 0 | 2 |
| 2013 | 2 | 0 |
| 2014 | 4 | 3 |
| 2015 | 2 | 1 |
| 2016 | 0 | 2 |
| 2017 | 2 | 4 |
| 2018 | 2 | 6 |
| 2019 | 2 | 1 |
| 2020 | 6 | 4 |
| 2021 | 0 | 7 |
| 2022 | 0 | 5 |
| 2023 | 1 | 7 |
| 2024 | 3 | 5 |
| 2025 | 4 | 3 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Oil and fuel collector25 Aug 2026US 12,714,951 B2Manvers Engineering Limited
- Composite filter body16 Jun 2026US 12,654,116 B2
- Ventilating and filtrating face mask5 May 2026US 12,616,857 B2NIKE, Inc.
- Biofilter block and use thereof for wastewater treatment10 Mar 2026US 12,570,558 B2Premier Tech Eau Et Environnement LtéE
- Multi-layered electret-containing filtration media23 Sep 2025US 12,420,221 B2Hollingsworth & Vose Company
- Electret-containing filter media30 Apr 2026US 2026/0115638 A1Hollingsworth & Vose Company
- Multi-layered electret-containing filtration media23 Apr 2026US 2026/0108833 A1Hollingsworth & Vose Company
- Material for a filter medium and filter comprising said material for a filter medium16 Apr 2026US 2026/0102724 A1Carl Freudenberg KG
- Composite filter body15 Jan 2026US 2026/0014498 A1
- Filter media, triboelectrically charged fibers thereof, and methods for the same6 Nov 2025US 2025/0339799 A1DelStar Technologies, Inc.
Most cited
By later US patents
- Post-treatment of nonwoven webs153US 5,244,482 AThe University of Tennessee Research Corporation · 1993
- Pivoting joint infusion system with seal101US 7,083,597 B2Applied Diabetes Research, Inc. · 2006
- Multilayer composite air filtration media99US 5,419,953 A1995
- Filter laminates91US 4,983,434 AW. L. Gore & Associates, Inc. · 1991
- Fibrous filtration face mask having corrugated polymeric microfiber filter layer86US 5,656,368 AMinnesota Mining and Manufacturing Company · 1997