C07C 57/04
Acrylic acid
Official title: Acrylic acid; Methacrylic acid
C07C57/04 (Acrylic acid) appears on 155 US grants and 175 published applications in this corpus.
Search patents in C07C- Granted patents
- 155
- Published applications
- 175
- Assignees
- 79
- Inventors
- 443
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 0 | 4 |
| 2011 | 2 | 2 |
| 2012 | 2 | 6 |
| 2013 | 2 | 16 |
| 2014 | 8 | 4 |
| 2015 | 5 | 9 |
| 2016 | 11 | 14 |
| 2017 | 15 | 14 |
| 2018 | 15 | 24 |
| 2019 | 27 | 18 |
| 2020 | 18 | 20 |
| 2021 | 15 | 10 |
| 2022 | 3 | 3 |
| 2023 | 4 | 7 |
| 2024 | 5 | 10 |
| 2025 | 6 | 6 |
| 2026 | 1 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Catalyst, method for filling catalyst, and method for producing compound using catalyst7 Jul 2026US 12,673,316 B2Nippon Kayaku Kabushiki Kaisha
- Production and separation of 3-hydroxypropionic acid2 Dec 2025US 12,486,212 B2Noroo IC Co., Ltd.
- Process for preparing acrylic acid14 Oct 2025US 12,441,676 B2LG Chem.Ltd.
- Bioactive granular hydrogel scaffolds and use thereof29 Jul 2025US 12,370,138 B2The Penn State Research Foundation
- Antifoulant compositions for high-severity processing of vinylic monomer streams1 Jul 2025US 12,344,581 B2Ecolab USA Inc.
- Storage and/or transport of ethylenically unsaturated carboxylic acids8 Oct 2026US 2026/0308099 A1BASF SE
- Conversion of a biomass-derived hydrocarbon feedstock into acrylate salts24 Sep 2026US 2026/0285796 A1Ifp Energies Nouvelles
- Catalyst and method for producing compound using same23 Jul 2026US 2026/0208169 A1Nippon Kayaku Kabushiki Kaisha
- Method for preparation of acrylic acid2 Jul 2026US 2026/0184661 A1LG Chem.Ltd.
- Method for producing (meth)acrylic acid21 May 2026US 2026/0138942 A1Arkema France
Most cited
By later US patents
- Compositions and methods for 3-hydroxypropionate bio-production from biomass42US 8,048,624 B1OPX Biotechnologies, Inc. · 2011
- Process for production of acrylic acid35US 10,099,988 B2Novomer, Inc. · 2018
- Distillation process for production of acrylic acid35US 10,099,989 B2Novomer, Inc. · 2018
- Thermolysis of polypropiolactone to produce acrylic acid27US 10,065,914 B1Novomer, Inc. · 2018
- Conductive polymers and method of preparation thereof27US 4,774,029 ASkeptikos Technology, Inc. · 1988