B01D 2239/0457
Specific fire retardant or heat resistant properties
B01D2239/0457 (Specific fire retardant or heat resistant properties) appears on 137 US grants and 115 published applications in this corpus.
Search patents in B01D- Granted patents
- 137
- Published applications
- 115
- Assignees
- 102
- Inventors
- 392
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 4 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 4 | 0 |
| 1989 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 10 | 0 |
| 1998 | 7 | 0 |
| 1999 | 12 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 1 |
| 2003 | 2 | 2 |
| 2004 | 1 | 1 |
| 2005 | 1 | 1 |
| 2006 | 0 | 4 |
| 2007 | 1 | 1 |
| 2008 | 2 | 2 |
| 2009 | 0 | 1 |
| 2010 | 0 | 5 |
| 2011 | 0 | 3 |
| 2012 | 2 | 3 |
| 2013 | 3 | 3 |
| 2014 | 0 | 1 |
| 2015 | 1 | 2 |
| 2016 | 1 | 2 |
| 2017 | 0 | 6 |
| 2018 | 0 | 8 |
| 2019 | 4 | 3 |
| 2020 | 3 | 9 |
| 2021 | 6 | 22 |
| 2022 | 4 | 13 |
| 2023 | 2 | 7 |
| 2024 | 9 | 5 |
| 2025 | 5 | 8 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- High temperature treated media9 Jun 2026US 12,649,982 B2Donaldson Company, Inc.
- Filter media, filters, and methods for making the same21 Oct 2025US 12,447,427 B2Resolute FP Canada, Inc.
- Filter media including out-of-plane solid elements, methods of forming them, and uses thereof1 Jul 2025US 12,343,666 B2Hollingsworth & Vose Company
- Method of treating a gas stream and method of operating an apparatus for producing a three-dimensional work piece13 May 2025US 12,296,388 B2Nikon SLM Solutions AG
- Filter assembly29 Apr 2025US 12,286,345 B23M Innovative Properties Company
- Filter media comprising fibrillated fibers and glass fibers26 Feb 2026US 2026/0054204 A1Hollingsworth & Vose Company
- Filter For The Filtration Of A Liquid Metal30 Oct 2025US 2025/0332636 A1Les Produits Industriels de Haute Temperature Pyrotek Inc.
- Cooking apparatus ventilation system including oil-smoke collection filter18 Sep 2025US 2025/0288934 A1Samsung Electronics Co., Ltd.
- Filter media including out-of-plane solid elements, methods of forming them, and uses thereof11 Sep 2025US 2025/0281860 A1Hollingsworth & Vose Company
- Filter structure4 Sep 2025US 2025/0276262 A1Toyo Aluminium Ekco Products Co., Ltd.
Most cited
By later US patents
- Bicomponent fibers and webs made therefrom302US 4,795,668 AMinnesota Mining and Manufacturing Company · 1989
- Strong nonwoven fabrics from engineered multiconstituent fibers282US 5,108,827 AFiberweb North America, Inc. · 1992
- Method of making polytetrafluoroethylene composite sheet203US 4,153,661 AMinnesota Mining and Manufacturing Company · 1979
- Bicomponent fibers and webs made therefrom129US 4,547,420 AMinnesota Mining and Manufacturing Company · 1985
- Strong nonwoven fabric laminates from engineered multiconstituent fibers125US 5,294,482 AFiberweb North America, Inc. · 1994