C08J 5/2231
Based on macromolecular compounds obtained by reactions involving unsaturated carbon-to-carbon bonds
Official title: {based on macromolecular compounds obtained by reactions involving unsaturated carbon-to-carbon bonds}
C08J5/2231 (Based on macromolecular compounds obtained by reactions involving unsaturated carbon-to-carbon bonds) appears on 751 US grants and 779 published applications in this corpus.
Search patents in C08J- Granted patents
- 751
- Published applications
- 779
- Assignees
- 334
- Inventors
- 1,704
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 10 | 0 |
| 1978 | 15 | 0 |
| 1979 | 14 | 0 |
| 1980 | 14 | 0 |
| 1981 | 13 | 0 |
| 1982 | 14 | 0 |
| 1983 | 16 | 0 |
| 1984 | 12 | 0 |
| 1985 | 10 | 0 |
| 1986 | 10 | 0 |
| 1987 | 10 | 0 |
| 1988 | 6 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 10 | 0 |
| 1998 | 10 | 0 |
| 1999 | 6 | 0 |
| 2000 | 7 | 0 |
| 2001 | 4 | 2 |
| 2002 | 7 | 12 |
| 2003 | 8 | 11 |
| 2004 | 12 | 23 |
| 2005 | 6 | 39 |
| 2006 | 9 | 39 |
| 2007 | 15 | 38 |
| 2008 | 12 | 26 |
| 2009 | 13 | 32 |
| 2010 | 25 | 30 |
| 2011 | 23 | 33 |
| 2012 | 18 | 30 |
| 2013 | 27 | 27 |
| 2014 | 31 | 27 |
| 2015 | 27 | 39 |
| 2016 | 31 | 38 |
| 2017 | 38 | 43 |
| 2018 | 27 | 38 |
| 2019 | 35 | 34 |
| 2020 | 37 | 37 |
| 2021 | 26 | 37 |
| 2022 | 23 | 37 |
| 2023 | 20 | 26 |
| 2024 | 29 | 37 |
| 2025 | 20 | 19 |
| 2026 | 18 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Cross-linkable polymer compositions and applications thereof8 Sep 2026US 12,729,261 B2Notark Corporation
- Cation exchange membrane and method for producing same1 Sep 2026US 12,722,125 B2Astom Corporation
- Method for producing fluorinated polymer and method for producing fluorinated ion exchange polymer1 Sep 2026US 12,723,119 B2AGC Inc.
- Preparation of metallocene containing cationic polymers for anion exchange applications28 Jul 2026US 12,691,419 B2University of South Carolina
- Electrolyte material, membrane electrode assembly and polymer electrolyte fuel cell23 Jun 2026US 12,665,210 B2AGC Inc.
- Elastic sulfonated styrene diene block copolymers8 Oct 2026US 2026/0308343 A1Rensselaer Polytechnic Institute
- Composite ion-conducting membrane1 Oct 2026US 2026/0302300 A1Johnson Matthey Hydrogen Technologies Limited
- Process for the fabrication of supported membranes by thermal and uv initiated mass polymerization24 Sep 2026US 2026/0286075 A1Promerus, LLC
- Uterine heat patch23 Jul 2026US 2026/0207375 A1Fridababy, LLC
- New polymer and anion exchange membrane comprising same23 Jul 2026US 2026/0209454 A1Hanwha Solutions Corporation
Most cited
By later US patents
- Ultra-thin integral composite membrane242US 5,547,551 AW. L. Gore & Associates, Inc. · 1996
- Process for making liquid composition of perfluorinated ion exchange polymer, and product thereof178US 4,433,082 AE. I. Du Pont de Nemours and Company · 1984
- Integral composite membrane150US 5,599,614 AW. L. Gore & Associates, Inc. · 1997
- Method of making sheet or shaped cation exchange membrane133US 4,298,697 ADiamond Shamrock Corporation · 1981
- Electrode apparatus containing an integral composite membrane109US 5,635,041 AW. L. Gore & Associates, Inc. · 1997