B01D 71/46
Epoxy resins
B01D71/46 (Epoxy resins) appears on 34 US grants and 50 published applications in this corpus.
Search patents in B01D- Granted patents
- 34
- Published applications
- 50
- Assignees
- 39
- Inventors
- 149
- Latest grant
- 12 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 3 |
| 2011 | 0 | 3 |
| 2012 | 3 | 4 |
| 2013 | 1 | 7 |
| 2014 | 2 | 2 |
| 2015 | 1 | 3 |
| 2016 | 4 | 4 |
| 2017 | 1 | 2 |
| 2018 | 1 | 7 |
| 2019 | 3 | 3 |
| 2020 | 1 | 3 |
| 2021 | 4 | 1 |
| 2022 | 0 | 2 |
| 2023 | 3 | 1 |
| 2024 | 1 | 2 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Epoxy functionalized poly(aryl ether sulfones) copolymers12 Aug 2025US 12,384,887 B2Solvay Specialty Polymers USA, LLC
- Polymer microfilters, devices comprising the same, methods of manufacturing the same, and uses thereof2 Jan 2024US 11,860,157 B2Creatv MicroTech, Inc.
- Hollow porous fibers26 Sep 2023US 11,767,615 B2Kimberly-Clark Worldwide, Inc.
- Ion-sensitive substance, ion-sensitive membrane using the same, and method for producing the ion-sensitive substance5 Sep 2023US 11,745,145 B2Panasonic Intellectual Property Management Co., Ltd.
- Polymer microfilters and methods of manufacturing the same28 Mar 2023US 11,613,115 B2Creatv MicroTech, Inc.
- Membrane with reacted networks7 Nov 2024US 2024/0367114 A1Celgard, LLC
- Tetrablock copolymers and articles made therefrom11 Jul 2024US 2024/0226820 A13M Innovative Properties Company
- Epoxy functionalized poly(aryl ether sulfones) copolymers23 Mar 2023US 2023/0092316 A1Solvay Specialty Polymers USA, LLC
- Polymer microfilters, devices comprising the same, methods of manufacturing the same, and uses thereof10 Mar 2022US 2022/0074922 A1Creatv MicroTech, Inc.
- Hollow Porous Fibers6 Jan 2022US 2022/0002911 A1Kimberly-Clark Worldwide, Inc.
Most cited
By later US patents
- Semi-permeable membranes prepared via reaction of cationic groups with nucleophilic groups123US 4,704,324 AThe Dow Chemical Company · 1987
- Semi-permeable membranes prepared via reaction of cationic groups with nucleophilic groups105US 4,797,187 AThe Dow Chemical Company · 1989
- Semi-permeable membranes prepared via reaction of cationic groups with nucleophilic groups60US 4,839,203 AThe Dow Chemical Company · 1989
- Permselective membrane34US 4,265,745 ATeijin Limited · 1981
- Epoxysilicone coated membranes24US 6,368,382 B1Uop LLC · 2002