C08F 22/06
Maleic anhydride
C08F22/06 (Maleic anhydride) appears on 55 US grants and 49 published applications in this corpus.
Search patents in C08F- Granted patents
- 55
- Published applications
- 49
- Assignees
- 45
- Inventors
- 130
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 3 |
| 2014 | 3 | 3 |
| 2015 | 1 | 3 |
| 2016 | 1 | 6 |
| 2017 | 3 | 4 |
| 2018 | 3 | 6 |
| 2019 | 7 | 2 |
| 2020 | 7 | 6 |
| 2021 | 2 | 4 |
| 2022 | 9 | 0 |
| 2023 | 5 | 6 |
| 2024 | 1 | 0 |
| 2025 | 4 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process for the production of biodegradable superabsorbent polymer with high absorbency under load based on styrene maleic acid copolymers and biopolymer15 Sep 2026US 12,734,270 B2Polygreen Ltd
- Metal-crosslinkable polymer composition, metal-crosslinked polymeric material, metal component, and wiring harness7 Oct 2025US 12,435,202 B2Autonetworks Technologies, Ltd.
- Alternating copolymers of selected unsymmetrically substituted stilbenes and maleic anhydride or N-substituted maleimides15 Jul 2025US 12,359,008 B2Virginia Tech Intellectual Properties, Inc.
- Green, safe and environmentally-friendly process and production equipment for industrialized continuous large-scale production of formaldehyde-free water-based adhesive24 Jun 2025US 12,338,372 B2New Era Chemical Shan Dong Co., Ltd.
- Adhesive composition and heat-fusible member using same4 Feb 2025US 12,215,250 B2Toagosei Co., Ltd.
- Process for the production of biodegradable superabsorbent polymer with high absorbency under load based on styrene maleic acid copolymers and biopolymer23 Jan 2025US 2025/0025597 A1Polygreen Ltd
- Curable compound product23 Nov 2023US 2023/0373916 A1Daicel Corporation
- Modified liquid diene rubbers, rubber compositions, and sealing materials31 Aug 2023US 2023/0272125 A1Kuraray Co., Ltd.
- Metal-crosslinkable polymer composition, metal-crosslinked polymeric material, metal component, and wiring harness24 Aug 2023US 2023/0265263 A1Autonetworks Technologies, Ltd.
- Green, safe and environmentally-friendly process and production equipment for industrialized continuous large-scale production of formaldehyde-free water-based adhesive4 May 2023US 2023/0138786 A1New Era Chemical Shan Dong Co., Ltd.
Most cited
By later US patents
- Solidification matrix using a maleic-containing terpolymer binding agent12US 8,530,403 B2Ecolab USA Inc. · 2013
- Continuous bulk polymerization and esterification process8US 6,355,727 B1S. C. Johnson Commercial Markets, Inc. · 2002
- Conducting polymer, 1-octadecene, polymer with 2,5 furnadione, metal salts7US 10,858,467 B22020
- Polymer, 1-octadecene, polymer with 2,5 furandione, metal salts used to make electronic components7US 10,858,468 B12020
- Polymer, 1-octadecene, polymer with 2,5 furandione, metal salts used as a catalyst means7US 10,865,265 B12020