C08F 8/46
Reaction with unsaturated dicarboxylic acids or anhydrides thereof
Official title: Reaction with unsaturated dicarboxylic acids or anhydrides thereof, e.g. maleinisation
C08F8/46 (Reaction with unsaturated dicarboxylic acids or anhydrides thereof) appears on 297 US grants and 193 published applications in this corpus.
Search patents in C08F- Granted patents
- 297
- Published applications
- 193
- Assignees
- 175
- Inventors
- 701
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 8 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 6 | 0 |
| 1985 | 5 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 9 | 0 |
| 1991 | 4 | 0 |
| 1992 | 8 | 0 |
| 1993 | 10 | 0 |
| 1994 | 10 | 0 |
| 1995 | 12 | 0 |
| 1996 | 15 | 0 |
| 1997 | 13 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 9 | 0 |
| 2001 | 3 | 1 |
| 2002 | 2 | 1 |
| 2003 | 3 | 2 |
| 2004 | 1 | 9 |
| 2005 | 4 | 4 |
| 2006 | 6 | 8 |
| 2007 | 3 | 6 |
| 2008 | 4 | 4 |
| 2009 | 1 | 6 |
| 2010 | 5 | 9 |
| 2011 | 1 | 6 |
| 2012 | 2 | 7 |
| 2013 | 6 | 8 |
| 2014 | 10 | 8 |
| 2015 | 8 | 6 |
| 2016 | 6 | 10 |
| 2017 | 6 | 7 |
| 2018 | 10 | 15 |
| 2019 | 6 | 11 |
| 2020 | 10 | 14 |
| 2021 | 11 | 14 |
| 2022 | 14 | 10 |
| 2023 | 9 | 11 |
| 2024 | 2 | 6 |
| 2025 | 6 | 6 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Composition of polymers derived through the maleation of depolymerized polypropylene2 Jun 2026US 12,643,988 B2GreenMantra Recycling Technologies Ltd.
- Resin composition, method for producing modified hydrogenated block copolymer, and molded article17 Mar 2026US 12,577,390 B2Asahi Kasei Kabushiki Kaisha
- Resin composition23 Sep 2025US 12,421,385 B2TOYOBO MC Corporation
- Dispersion resin composition16 Sep 2025US 12,415,916 B2Nippon Paper Industries Co., Ltd.
- Resin composition, method for producing resin composition, and molded article15 Jul 2025US 12,359,055 B2Kuraray Co., Ltd.
- Process for the production of grafted polypropylene23 Apr 2026US 2026/0109798 A1Centre National de la Recherche Scientifique (CNRS)
- Water dispersion, carbon fiber bundle, and unidirectional material16 Apr 2026US 2026/0103836 A1Formosa Plastics Corporation
- Method of Synthesizing Olefin Functional Polymer in Continuous Feeding Manner and Use of the Olefin Functional Polymer29 Jan 2026US 2026/0028435 A1Jiangsu Yangnong Chemical Group Co., Ltd
- Process to produce polymer compositions comprising polypropylene8 Jan 2026US 2026/0008922 A1Centre National de la Recherche Scientifique (CNRS)
- Process for manufacturing of polyisobutene succinic anhydrides7 Aug 2025US 2025/0250382 A1BASF SE
Most cited
By later US patents
- Polyisobutenes289US 4,152,499 ABASF SE · 1979
- Polymers derived from ethylene and 1-butene for use in the preparation of lubricant dispersant additives173US 5,498,809 AExxon Chemical Patents Inc. · 1996
- Ashless dispersants formed from substituted acylating agents and their production and use115US 5,241,003 AEthyl Petroleum Additives, Inc. · 1993
- Modified block copolymer composition99US 4,628,072 AAsahi Kasei Kogyo Kabushiki Kaisha · 1986
- Ethylene alpha-olefin polymer substituted mono- and dicarboxylic acid dispersant additives (PT-920)88US 5,229,022 AExxon Chemical Patents Inc. · 1993