B01D 2239/0663
The layers being joined by hydro-entangling
B01D2239/0663 (The layers being joined by hydro-entangling) appears on 43 US grants and 42 published applications in this corpus.
Search patents in B01D- Granted patents
- 43
- Published applications
- 42
- Assignees
- 35
- Inventors
- 121
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 7 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 2 |
| 2003 | 1 | 2 |
| 2004 | 3 | 3 |
| 2005 | 1 | 2 |
| 2006 | 3 | 4 |
| 2007 | 1 | 0 |
| 2008 | 1 | 2 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 2 | 2 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 1 | 1 |
| 2015 | 2 | 1 |
| 2016 | 0 | 2 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 2 | 2 |
| 2020 | 1 | 2 |
| 2021 | 0 | 3 |
| 2022 | 0 | 1 |
| 2023 | 0 | 5 |
| 2024 | 0 | 2 |
| 2025 | 2 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Dual-layer gas filters and systems and methods for making the same9 Apr 2026US 2026/0097341 A1DelStar Technologies, Inc.
- Filter media, triboelectrically charged fibers thereof, and methods for the same6 Nov 2025US 2025/0339799 A1DelStar Technologies, Inc.
- Filter material comprising a gradient structure nonwoven base layer and a nanofiber top layer27 Mar 2025US 2025/0099887 A1Fibertex Nonwovens A/S
- Antibacterial and antiviral degradable mask and manufacturing method thereof18 Jul 2024US 2024/0237765 A1Nanjing Forestry University
- Fiber structure and use thereof9 May 2024US 2024/0150946 A1Kuraray Kuraflex Co., Ltd.
Most cited
By later US patents
- Method of charging electret filter media289US 5,496,507 AMinnesota Mining and Manufacturing Company · 1996
- Fibrous structures containing immobilized particulate matter181US 5,486,410 AHoechst Celanese Corporation · 1996
- Fibrous webs having enhanced electret properties174US 5,908,598 AMinnesota Mining and Manufacturing Company · 1999
- Post-treatment of nonwoven webs153US 5,244,482 AThe University of Tennessee Research Corporation · 1993
- Fibrous structures containing particulate and including microfiber web102US 5,605,746 AHoechst Celanese Corporation · 1997