C08F 226/00
Copolymers of compounds having one or more unsaturated aliphatic radicals, each having
Official title: Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen
C08F226/00 (Copolymers of compounds having one or more unsaturated aliphatic radicals, each having) appears on 1,133 US grants and 1,187 published applications in this corpus.
Search patents in C08F- Granted patents
- 1,133
- Published applications
- 1,187
- Assignees
- 629
- Inventors
- 3,349
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 9 | 0 |
| 1978 | 3 | 0 |
| 1979 | 5 | 0 |
| 1980 | 9 | 0 |
| 1981 | 5 | 0 |
| 1982 | 7 | 0 |
| 1983 | 2 | 0 |
| 1984 | 10 | 0 |
| 1985 | 14 | 0 |
| 1986 | 9 | 0 |
| 1987 | 14 | 0 |
| 1988 | 12 | 0 |
| 1989 | 9 | 0 |
| 1990 | 15 | 0 |
| 1991 | 16 | 0 |
| 1992 | 18 | 0 |
| 1993 | 22 | 0 |
| 1994 | 28 | 0 |
| 1995 | 18 | 0 |
| 1996 | 25 | 0 |
| 1997 | 22 | 0 |
| 1998 | 12 | 0 |
| 1999 | 17 | 0 |
| 2000 | 18 | 0 |
| 2001 | 28 | 4 |
| 2002 | 20 | 14 |
| 2003 | 15 | 11 |
| 2004 | 6 | 15 |
| 2005 | 10 | 15 |
| 2006 | 6 | 35 |
| 2007 | 7 | 39 |
| 2008 | 11 | 29 |
| 2009 | 12 | 45 |
| 2010 | 25 | 50 |
| 2011 | 28 | 46 |
| 2012 | 29 | 74 |
| 2013 | 39 | 54 |
| 2014 | 42 | 58 |
| 2015 | 45 | 66 |
| 2016 | 57 | 65 |
| 2017 | 53 | 52 |
| 2018 | 54 | 69 |
| 2019 | 45 | 67 |
| 2020 | 57 | 67 |
| 2021 | 57 | 69 |
| 2022 | 36 | 70 |
| 2023 | 34 | 54 |
| 2024 | 37 | 46 |
| 2025 | 37 | 45 |
| 2026 | 21 | 28 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method of preparing aldehyde-functionalized polymers29 Sep 2026US 12,747,307 B2Ecolab USA Inc.
- Photosensitive polymer and resist composition having the same28 Jul 2026US 12,692,335 B2Chempole Co., Ltd.
- HCL-binding compositions for and methods of treating acid-base disorders2 Jun 2026US 12,642,815 B2Renibus Therapeutics, Inc.
- Materials for reducing acids from liquid phases2 Jun 2026US 12,643,971 B2The Board of Trustees of The University of Alabama
- Pressure-sensitive adhesive sheet and use thereof5 May 2026US 12,617,985 B2Nitto Denko Corporation
- Methods of synthesizing vinylamine-containing polymer solutions and vinylamine-containing polymer solutions synthesized through the methods17 Sep 2026US 2026/0275016 A1Solenis Technologies, L.P.
- Materials for reducing acids from liquid phases10 Sep 2026US 2026/0265434 A1The Board of Trustees of The University of Alabama
- Method for preparing transparent and heat-sensitive polycaprolactam coatings on polymer substrates10 Sep 2026US 2026/0265476 A1Consejo Superior De Investigaciones Cientificas (Csic)
- N-vinyl lactam copolymer and composition3 Sep 2026US 2026/0258178 A1Nippon Shokubai Co., Ltd.
- Polymers and methods for ophthalmic applications27 Aug 2026US 2026/0251820 A1Key Medical Technologies, Inc.
Most cited
By later US patents
- Long wearable soft contact lens322US 6,867,245 B2Asahikasei Aime Co., Ltd · 2005
- Hydrophilic oxygen permeable polymers250US 4,910,277 A1990
- Temporary wet strength resins with nitrogen heterocyclic nonnucleophilic functionalities and paper products containing same167US 4,981,557 AThe Procter & Gamble Company · 1991
- Compositions and methods for selective modification of subterranean formation permeability166US 6,228,812 B1BJ Services Company · 2001
- Polymer compositions for contact lenses146US 5,006,622 ABausch & Lomb Incorporated · 1991