C08F 22/02
Acids
Official title: Acids; Metal salts or ammonium salts thereof {, e.g. maleic acid or itaconic acid}
C08F22/02 (Acids) appears on 63 US grants and 59 published applications in this corpus.
Search patents in C08F- Granted patents
- 63
- Published applications
- 59
- Assignees
- 48
- Inventors
- 181
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 3 | 4 |
| 2012 | 1 | 1 |
| 2013 | 3 | 9 |
| 2014 | 3 | 3 |
| 2015 | 3 | 7 |
| 2016 | 5 | 6 |
| 2017 | 3 | 4 |
| 2018 | 5 | 6 |
| 2019 | 4 | 3 |
| 2020 | 6 | 1 |
| 2021 | 1 | 2 |
| 2022 | 9 | 3 |
| 2023 | 0 | 2 |
| 2024 | 0 | 3 |
| 2025 | 2 | 0 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Osidic dispersing agent5 May 2026US 12,617,968 B2Coatex
- Curable composition, cured film manufactured using composition, color filter including cured film, and display device including color filter21 Apr 2026US 12,606,650 B2Samsung SDI.Co., Ltd.
- Photocurable composition and dental product10 Mar 2026US 12,569,410 B2Mitsui Chemicals, Inc.
- Solvent-free curable composition, cured film produced using same composition, color filter comprising same cured film, and display device9 Sep 2025US 12,410,365 B2Samsung SDI.Co., Ltd.
- Method for composite delamination2 Sep 2025US 12,404,356 B2Grst Singapore Pte. Ltd.
- Water-absorbing resin and method for producing water-absorbing resin16 Jul 2026US 2026/0201086 A1Nippon Shokubai Co., Ltd.
- Superabsorbent polymer, method of making the same, and foodstuff packaging material including the same15 Jan 2026US 2026/0014547 A1Formosa Plastics Corporation
- Composition, compound, resin, substrate treatment method, and manufacturing method for semiconductor device5 Dec 2024US 2024/0400949 A1FUJIFILM Corporation
- Curable composition, cured film manufactured using composition, color filter including cured film, and display device including color filter18 Apr 2024US 2024/0124623 A1Samsung SDI.Co., Ltd.
- Modifier and Preparation Method Thereof, and Modified Acrylic Resin and Preparation Method and Use Thereof21 Mar 2024US 2024/0093019 A1Qihe Leahou Chemical Co., Ltd.
Most cited
By later US patents
- Process for producing and use of maleic acid (co-) polymer salt improved in biodegradability35US 5,064,563 ANippon Shokubai Co., Ltd. · 1991
- Process for polymerization of itaconic acid30US 5,223,592 ARohm and Haas Company · 1993
- Production of polymaleic acid27US 4,709,091 AKao Corporation · 1987
- Polymerization process for carboxyl containing polymers23US 4,375,533 AThe B. F. Goodrich Company · 1983
- Polymerization process for carboxyl containing polymers13US 4,419,502 AThe B. F. Goodrich Company · 1983