B01D 67/0088
Physical treatment with compounds
Official title: {Physical treatment with compounds, e.g. swelling, coating or impregnation}
B01D67/0088 (Physical treatment with compounds) appears on 1,115 US grants and 1,222 published applications in this corpus.
Search patents in B01D- Granted patents
- 1,115
- Published applications
- 1,222
- Assignees
- 687
- Inventors
- 3,277
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 5 | 0 |
| 1981 | 4 | 0 |
| 1982 | 6 | 0 |
| 1983 | 4 | 0 |
| 1984 | 6 | 0 |
| 1985 | 7 | 0 |
| 1986 | 9 | 0 |
| 1987 | 15 | 0 |
| 1988 | 23 | 0 |
| 1989 | 24 | 0 |
| 1990 | 22 | 0 |
| 1991 | 20 | 0 |
| 1992 | 26 | 0 |
| 1993 | 20 | 0 |
| 1994 | 21 | 0 |
| 1995 | 18 | 0 |
| 1996 | 21 | 0 |
| 1997 | 20 | 0 |
| 1998 | 17 | 0 |
| 1999 | 24 | 0 |
| 2000 | 11 | 0 |
| 2001 | 21 | 11 |
| 2002 | 19 | 14 |
| 2003 | 14 | 28 |
| 2004 | 10 | 55 |
| 2005 | 15 | 37 |
| 2006 | 17 | 41 |
| 2007 | 22 | 42 |
| 2008 | 16 | 38 |
| 2009 | 30 | 49 |
| 2010 | 35 | 51 |
| 2011 | 23 | 26 |
| 2012 | 31 | 48 |
| 2013 | 28 | 35 |
| 2014 | 28 | 43 |
| 2015 | 20 | 57 |
| 2016 | 34 | 66 |
| 2017 | 33 | 52 |
| 2018 | 30 | 66 |
| 2019 | 55 | 58 |
| 2020 | 64 | 72 |
| 2021 | 43 | 67 |
| 2022 | 46 | 71 |
| 2023 | 39 | 60 |
| 2024 | 44 | 44 |
| 2025 | 46 | 52 |
| 2026 | 21 | 39 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Separation of alcohol using a membrane15 Sep 2026US 12,734,482 B2Altr Fltr Inc.
- Surface-treated porous materials having filtration properties and methods of preparing them18 Aug 2026US 12,708,879 B2Aculon, Inc.
- Diffusion transfer functionalized membrane28 Jul 2026US 12,691,420 B2Wisconsin Alumni Research Foundation
- Oleophobic fluoropolymers and filter materials prepared therefrom28 Jul 2026US 12,692,332 B2Entegris, Inc.
- Preparation method of Janus ceramic membrane and application of Janus ceramic membrane in dispersion-intensified bubble aeration process16 Jun 2026US 12,654,138 B2Nanjing Tech University
- Treated microporous membrane24 Sep 2026US 2026/0284603 A1PPG Industries Ohio, Inc.
- Purification process of ethyl formate27 Aug 2026US 2026/0249251 A1Taicang Hushi Reagent Co., Ltd.
- Fluorine-free hydrophobic permeable material27 Aug 2026US 2026/0250478 A1Donaldson Company, Inc.
- Carbon molecular sieve membranes, methods of manufacturing, and use thereof13 Aug 2026US 2026/0233168 A1Dow Global Technologies LLC
- Separation methods and systems13 Aug 2026US 2026/0233170 A1Altr Fltr Inc.
Most cited
By later US patents
- Treating hydrophobic filters to render them hydrophilic1,164US 4,525,374 AManresa, Inc. · 1985
- Multicomponent membranes for gas separations355US 4,230,463 AMonsanto Company · 1980
- Composite solid polymer electrolyte membranes346US 7,550,216 B2Foster-Miller, Inc. · 2009
- Ultra-thin integral composite membrane242US 5,547,551 AW. L. Gore & Associates, Inc. · 1996
- Porous membrane having hydrophilic surface and process215US 4,618,533 AMillipore Corporation · 1986