B01D 71/76
Macromolecular material not specifically provided for in a single one of groups
Official title: Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74 (rubbers in general B01D71/24)
B01D71/76 (Macromolecular material not specifically provided for in a single one of groups) appears on 1,328 US grants and 1,648 published applications in this corpus.
Search patents in B01D- Granted patents
- 1,328
- Published applications
- 1,648
- Assignees
- 744
- Inventors
- 3,769
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 3 | 0 |
| 1978 | 9 | 0 |
| 1979 | 5 | 0 |
| 1980 | 6 | 0 |
| 1981 | 10 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 6 | 0 |
| 1985 | 4 | 0 |
| 1986 | 6 | 0 |
| 1987 | 9 | 0 |
| 1988 | 10 | 0 |
| 1989 | 17 | 0 |
| 1990 | 24 | 0 |
| 1991 | 23 | 0 |
| 1992 | 18 | 0 |
| 1993 | 7 | 0 |
| 1994 | 13 | 0 |
| 1995 | 10 | 0 |
| 1996 | 9 | 0 |
| 1997 | 10 | 0 |
| 1998 | 9 | 0 |
| 1999 | 10 | 0 |
| 2000 | 10 | 0 |
| 2001 | 9 | 4 |
| 2002 | 14 | 23 |
| 2003 | 11 | 21 |
| 2004 | 17 | 33 |
| 2005 | 13 | 33 |
| 2006 | 15 | 48 |
| 2007 | 21 | 33 |
| 2008 | 20 | 32 |
| 2009 | 11 | 48 |
| 2010 | 33 | 53 |
| 2011 | 34 | 58 |
| 2012 | 29 | 57 |
| 2013 | 48 | 68 |
| 2014 | 42 | 66 |
| 2015 | 53 | 94 |
| 2016 | 70 | 93 |
| 2017 | 71 | 90 |
| 2018 | 59 | 81 |
| 2019 | 76 | 90 |
| 2020 | 76 | 116 |
| 2021 | 75 | 110 |
| 2022 | 66 | 87 |
| 2023 | 70 | 83 |
| 2024 | 64 | 105 |
| 2025 | 58 | 66 |
| 2026 | 32 | 56 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method of preparing reverse osmosis membrane with charged hydrogel and polyamide double network8 Sep 2026US 12,728,388 B2
- Cross-linkable polymer compositions and applications thereof8 Sep 2026US 12,729,261 B2Notark Corporation
- Gas separation membrane, and preparation method therefor and use thereof25 Aug 2026US 12,714,972 B2Changshu 3F Zhonghao New Chemical Materials Co., Ltd.
- Semiconductive and proton-conductive porous hydrogen-bonded frameworks4 Aug 2026US 12,697,593 B2Technische UniversitäT Berlin
- Preparation of metallocene containing cationic polymers for anion exchange applications28 Jul 2026US 12,691,419 B2University of South Carolina
- Acid-resistant and alkali-resistant composite nanofiltration membrane, and preparation method therefor and use thereof17 Sep 2026US 2026/0273478 A1China Petroleum & Chemical Corporation
- Cationic Compounds for Anion Exchange Membranes3 Sep 2026US 2026/0257990 A1Agfa-Gevaert
- Ion permeable membrane20 Aug 2026US 2026/0242230 A1Idemitsu Kosan Co., Ltd.
- Ceramic cation exchange materials13 Aug 2026US 2026/0233171 A1Membrion, Inc.
- Hollow fiber membrane and hollow fiber membrane module6 Aug 2026US 2026/0225044 A1Toray Industries, Inc.
Most cited
By later US patents
- Techniques to improve polyurethane membranes for implantable glucose sensors1,046US 7,226,978 B2DexCom, Inc. · 2007
- Acrylic copolymer membranes for biosensors653US 5,284,140 AEli Lilly and Company · 1994
- Functional, photochemically active, and chemically asymmetric membranes by interfacial polymerization of derivatized multifunctional prepolymers410US 4,784,736 ABend Research, Inc. · 1988
- Functional, photochemically active, and chemically asymmetric membranes by interfacial polymerization of derivatized multifunctional prepolymers370US 4,917,800 ABend Research, Inc. · 1990
- Membranes of polyurethane based materials including polyester polyols364US 6,321,465 B1NIKE, Inc. · 2001