C08L 33/02
Homopolymers or copolymers of acids
Official title: Homopolymers or copolymers of acids; Metal or ammonium salts thereof
C08L33/02 (Homopolymers or copolymers of acids) appears on 992 US grants and 1,135 published applications in this corpus.
Search patents in C08L- Granted patents
- 992
- Published applications
- 1,135
- Assignees
- 610
- Inventors
- 3,007
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 9 | 0 |
| 1978 | 9 | 0 |
| 1979 | 3 | 0 |
| 1980 | 6 | 0 |
| 1981 | 5 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 12 | 0 |
| 1985 | 9 | 0 |
| 1986 | 6 | 0 |
| 1987 | 5 | 0 |
| 1988 | 11 | 0 |
| 1989 | 5 | 0 |
| 1990 | 8 | 0 |
| 1991 | 15 | 0 |
| 1992 | 8 | 0 |
| 1993 | 11 | 0 |
| 1994 | 13 | 0 |
| 1995 | 11 | 0 |
| 1996 | 13 | 0 |
| 1997 | 10 | 0 |
| 1998 | 11 | 0 |
| 1999 | 13 | 0 |
| 2000 | 7 | 0 |
| 2001 | 10 | 1 |
| 2002 | 11 | 5 |
| 2003 | 10 | 18 |
| 2004 | 6 | 17 |
| 2005 | 9 | 20 |
| 2006 | 7 | 22 |
| 2007 | 8 | 35 |
| 2008 | 11 | 29 |
| 2009 | 9 | 38 |
| 2010 | 14 | 55 |
| 2011 | 25 | 52 |
| 2012 | 26 | 56 |
| 2013 | 32 | 58 |
| 2014 | 48 | 47 |
| 2015 | 58 | 86 |
| 2016 | 38 | 54 |
| 2017 | 58 | 62 |
| 2018 | 44 | 81 |
| 2019 | 56 | 90 |
| 2020 | 64 | 62 |
| 2021 | 57 | 73 |
| 2022 | 47 | 49 |
| 2023 | 40 | 39 |
| 2024 | 36 | 34 |
| 2025 | 35 | 30 |
| 2026 | 17 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Compositions, multilayer films formed from such compositions, and articles22 Sep 2026US 12,742,066 B2Dow Global Technologies LLC
- Binder for secondary battery electrode and use thereof18 Aug 2026US 12,712,185 B2Toagosei Co., Ltd.
- Particulate water-absorbing agent and method for producing the same11 Aug 2026US 12,702,967 B2Nippon Shokubai Co., Ltd.
- Urinary catheter4 Aug 2026US 12,697,467 B2C. R. Bard, Inc.
- Water-dispersed pressure-sensitive adhesive composition21 Jul 2026US 12,686,799 B2Nitto Denko Corporation
- Crystallization-driven self-strengthening polymers and associated compositions and methods24 Sep 2026US 2026/0286030 A1The Regents of the University of Colorado, a body corporate
- Contact lens configured to release active agent13 Aug 2026US 2026/0235788 A1Alcon Inc.
- Composition of Super Absorbent Polymer and Preparation Method Thereof23 Jul 2026US 2026/0208157 A1LG Chem.Ltd.
- Water activated adhesive mixture23 Jul 2026US 2026/0209574 A1Johns Manville
- Microwave-assisted synthesis of polyacrylic beads and the use thereof16 Jul 2026US 2026/0201128 A1Temple University of the Commonwealth System of Higher Education
Most cited
By later US patents
- Golf ball321US 4,884,814 ASpalding & Evenflo Companies, Inc. · 1989
- Golf ball cover of neutralized poly(ethylene-acrylic acid) copolymer265US 4,911,451 A1990
- Liquid emulsion polymers useful as pH responsive thickeners for aqueous systems228US 4,384,096 AThe Dow Chemical Company · 1983
- Cosmestic compositions containing a cationic polymer and an anionic polymer as thickening agent215US 4,839,166 AL'oreal · 1989
- Water-absorbent resin having improved water-absorbency and improved water-dispersibility and process for producing same188US 4,541,871 ASeitetsu Kagaku Co., Ltd. · 1985