B01D 71/32
Containing fluorine atoms
Official title: containing fluorine atoms
B01D71/32 (Containing fluorine atoms) appears on 1,369 US grants and 1,772 published applications in this corpus.
Search patents in B01D- Granted patents
- 1,369
- Published applications
- 1,772
- Assignees
- 749
- Inventors
- 3,694
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 6 | 0 |
| 1978 | 9 | 0 |
| 1979 | 5 | 0 |
| 1980 | 12 | 0 |
| 1981 | 8 | 0 |
| 1982 | 7 | 0 |
| 1983 | 6 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 9 | 0 |
| 1988 | 7 | 0 |
| 1989 | 14 | 0 |
| 1990 | 12 | 0 |
| 1991 | 15 | 0 |
| 1992 | 14 | 0 |
| 1993 | 9 | 0 |
| 1994 | 9 | 0 |
| 1995 | 17 | 0 |
| 1996 | 12 | 0 |
| 1997 | 7 | 0 |
| 1998 | 13 | 0 |
| 1999 | 17 | 0 |
| 2000 | 19 | 0 |
| 2001 | 17 | 3 |
| 2002 | 14 | 29 |
| 2003 | 19 | 26 |
| 2004 | 19 | 41 |
| 2005 | 15 | 47 |
| 2006 | 16 | 42 |
| 2007 | 22 | 44 |
| 2008 | 16 | 37 |
| 2009 | 26 | 55 |
| 2010 | 36 | 58 |
| 2011 | 29 | 69 |
| 2012 | 36 | 55 |
| 2013 | 33 | 81 |
| 2014 | 43 | 76 |
| 2015 | 57 | 109 |
| 2016 | 62 | 86 |
| 2017 | 72 | 78 |
| 2018 | 57 | 96 |
| 2019 | 72 | 96 |
| 2020 | 75 | 129 |
| 2021 | 77 | 104 |
| 2022 | 77 | 100 |
| 2023 | 73 | 101 |
| 2024 | 62 | 84 |
| 2025 | 64 | 74 |
| 2026 | 39 | 52 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Bioprocess with reduced fouling on surfaces15 Sep 2026US 12,734,465 B2Nutrition & Biosciences USA 1, LLC
- Point of use or point of dispense filter with multiple pleat packs15 Sep 2026US 12,734,488 B2Entegris, Inc.
- Gas separation membrane, and preparation method therefor and use thereof25 Aug 2026US 12,714,972 B2Changshu 3F Zhonghao New Chemical Materials Co., Ltd.
- Cell retention device18 Aug 2026US 12,708,876 B2Sunflower Therapeutics, PBC
- Surface-treated porous materials having filtration properties and methods of preparing them18 Aug 2026US 12,708,879 B2Aculon, Inc.
- Systems and methods for using facilitated transport membranes to separate olefins and paraffins8 Oct 2026US 2026/0308087 A1
- Filter assembly for a therapeutic gas delivery device1 Oct 2026US 2026/0295513 A1Mallinckrodt Pharmaceuticals Ireland Limited
- Ultra-low power membrane-assisted lithium extraction system with passive foulant removal24 Sep 2026US 2026/0284598 A1Lyten, Inc.
- Conductive hollow fiber membrane and preparation method thereof and membrane assembly24 Sep 2026US 2026/0284601 A1Cangzhou Institute of Tiangong University
- Polyamide-based mixed matrix membrane for oil-water separation24 Sep 2026US 2026/0286076 A1King Fahd University of Petroleum and Minerals
Most cited
By later US patents
- Process for producing porous products1,316US 3,953,566 AW. L. Gore & Associates, Inc. · 1976
- Melt-blown fibrous web1,019US 5,582,907 APall Corporation · 1996
- Porous products and process therefor909US 4,187,390 AW. L. Gore & Associates, Inc. · 1980
- Composite solid polymer electrolyte membranes346US 7,550,216 B2Foster-Miller, Inc. · 2009
- Very highly stretched polytetrafluoroethylene and process therefor330US 3,962,153 AW. L. Gore & Associates, Inc. · 1976