B01D 71/80
Block polymers
B01D71/80 (Block polymers) appears on 471 US grants and 531 published applications in this corpus.
Search patents in B01D- Granted patents
- 471
- Published applications
- 531
- Assignees
- 291
- Inventors
- 1,225
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 0 | 0 |
| 1978 | 6 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 6 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 5 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 6 | 0 |
| 1990 | 8 | 0 |
| 1991 | 9 | 0 |
| 1992 | 9 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 1 |
| 2002 | 5 | 8 |
| 2003 | 5 | 7 |
| 2004 | 6 | 11 |
| 2005 | 5 | 4 |
| 2006 | 1 | 9 |
| 2007 | 6 | 8 |
| 2008 | 7 | 12 |
| 2009 | 3 | 14 |
| 2010 | 9 | 17 |
| 2011 | 12 | 17 |
| 2012 | 12 | 20 |
| 2013 | 16 | 19 |
| 2014 | 8 | 18 |
| 2015 | 17 | 44 |
| 2016 | 27 | 41 |
| 2017 | 38 | 31 |
| 2018 | 22 | 24 |
| 2019 | 27 | 34 |
| 2020 | 25 | 39 |
| 2021 | 23 | 40 |
| 2022 | 25 | 32 |
| 2023 | 27 | 22 |
| 2024 | 21 | 29 |
| 2025 | 17 | 13 |
| 2026 | 8 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cross-linkable polymer compositions and applications thereof8 Sep 2026US 12,729,261 B2Notark Corporation
- Membrane-dehumidification technologies for electronic component protection14 Jul 2026US 12,678,732 B2Purdue Research Foundation
- Sulfonated polymers and compositions thereof26 May 2026US 12,637,532 B2Kraton Corporation
- Spiral membrane element and membrane separation system17 Mar 2026US 12,576,365 B2Nitto Denko Corporation
- Polyether compound and gas separation membrane10 Mar 2026US 12,570,798 B2Zeon Corporation
- Ion permeable membrane20 Aug 2026US 2026/0242230 A1Idemitsu Kosan Co., Ltd.
- Gas separation membrane, method of preparing the same, and module including the same30 Jul 2026US 2026/0216662 A1Samsung Electronics Co., Ltd.
- Semipermeable membrane and semipermeable membrane module30 Jul 2026US 2026/0216670 A1Toyobo Co., Ltd.
- Partially fluorinated amphiphilic block copolymer and polymer membrane for gas separation comprising the same23 Jul 2026US 2026/0209422 A1UIF (University Industry Foundation), Yonsei University
- Zwitterion anti-scaling membrane coatings9 Jul 2026US 2026/0192259 A1Arizona Board of Regents on behalf of Arizona State University
Most cited
By later US patents
- Techniques to improve polyurethane membranes for implantable glucose sensors1,046US 7,226,978 B2DexCom, Inc. · 2007
- Systems for premeating molecules of predetermined molecular weight range361US 5,756,632 AThe Polymer Technology Group · 1998
- Multicomponent membranes for gas separations355US 4,230,463 AMonsanto Company · 1980
- Copolymers and non-porous, semi-permeable membrane thereof and its use for permeating molecules of predetermined molecular weight range303US 5,428,123 AThe Polymer Technology Group · 1995
- Block copolymers131US 5,834,583 ACirce Biomedical, Inc. · 1998