C08F 20/04
Acids, metal salts or ammonium salts thereof
Official title: Acids, Metal salts or ammonium salts thereof
C08F20/04 (Acids, metal salts or ammonium salts thereof) appears on 496 US grants and 531 published applications in this corpus.
Search patents in C08F- Granted patents
- 496
- Published applications
- 531
- Assignees
- 265
- Inventors
- 1,442
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 6 | 0 |
| 1989 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 6 | 0 |
| 1992 | 4 | 0 |
| 1993 | 13 | 0 |
| 1994 | 8 | 0 |
| 1995 | 8 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 8 | 0 |
| 1999 | 6 | 0 |
| 2000 | 7 | 0 |
| 2001 | 7 | 0 |
| 2002 | 9 | 13 |
| 2003 | 4 | 6 |
| 2004 | 5 | 10 |
| 2005 | 7 | 7 |
| 2006 | 9 | 6 |
| 2007 | 5 | 5 |
| 2008 | 2 | 10 |
| 2009 | 0 | 6 |
| 2010 | 4 | 15 |
| 2011 | 7 | 15 |
| 2012 | 6 | 13 |
| 2013 | 12 | 23 |
| 2014 | 14 | 22 |
| 2015 | 22 | 13 |
| 2016 | 23 | 22 |
| 2017 | 9 | 26 |
| 2018 | 14 | 41 |
| 2019 | 20 | 39 |
| 2020 | 42 | 58 |
| 2021 | 28 | 42 |
| 2022 | 29 | 47 |
| 2023 | 27 | 32 |
| 2024 | 31 | 31 |
| 2025 | 26 | 15 |
| 2026 | 28 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Poly(meth)acrylic acid (salt)-based water-absorbing resin, and absorbent body15 Sep 2026US 12,734,502 B2Nippon Shokubai Co., Ltd.
- B-stageable aqueous binder compositions28 Jul 2026US 12,692,328 B2Owens Corning Intellectual Capital, LLC
- Preparation process for solid acrylic resin suitable for UV photocuring system23 Jun 2026US 12,662,557 B2Pioneer Chemicals (Yangzhou) Co., Ltd
- Water-based compositions with long term gloss retention16 Jun 2026US 12,655,302 B2Swimc LLC
- Composition comprising a multistage polymer and a (meth)acrylic polymer, its method of preparation and its use2 Jun 2026US 12,643,965 B2Arkema France
- Compositions, uses, and methods8 Oct 2026US 2026/0308341 A1Innospec Limited
- B-stageable aqueous binder compositions1 Oct 2026US 2026/0297225 A1Owens Corning Intellectual Capital, LLC
- Dispersion powder and method for producing the same, heat ray shielding resin molded product, and heat ray shielding laminate24 Sep 2026US 2026/0286023 A1Sumitomo Metal Mining Co., Ltd.
- Glassy gels toughend by solvent10 Sep 2026US 2026/0265423 A1
- Semiconductor device having air gap and method for manufacturing the same27 Aug 2026US 2026/0255941 A1Taiwan Semiconductor Manufacturing Company.Ltd
Most cited
By later US patents
- Process for producing a water-absorbent resin106US 4,683,274 ASeitetsu Kagaku Co., Ltd. · 1987
- In vivo polymerizable ophthalmic compositions and methods of using94US 6,180,687 B2Alcon Laboratories, Inc. · 2001
- Ionic silicone hydrogels having improved hydrolytic stability85US 9,260,544 B2Johnson & Johnson Vision Care, Inc. · 2016
- Production of hydrogels82US 4,367,323 ASumitomo Chemical Company, Limited · 1983
- Ionic silicone hydrogels having improved hydrolytic stability77US 8,470,906 B2Johnson & Johnson Vision Care, Inc. · 2013