C08C
Treatment or chemical modification of rubbers
C08C (Treatment or chemical modification of rubbers) appears on 3,206 US grants and 2,789 published applications in this corpus.
Search patents in C08C- Granted patents
- 3,206
- Published applications
- 2,789
- Assignees
- 807
- Inventors
- 5,171
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 66 | 0 |
| 1977 | 55 | 0 |
| 1978 | 68 | 0 |
| 1979 | 44 | 0 |
| 1980 | 39 | 0 |
| 1981 | 44 | 0 |
| 1982 | 34 | 0 |
| 1983 | 47 | 0 |
| 1984 | 33 | 0 |
| 1985 | 57 | 0 |
| 1986 | 28 | 0 |
| 1987 | 30 | 0 |
| 1988 | 25 | 0 |
| 1989 | 44 | 0 |
| 1990 | 46 | 0 |
| 1991 | 50 | 0 |
| 1992 | 43 | 0 |
| 1993 | 58 | 0 |
| 1994 | 50 | 0 |
| 1995 | 43 | 0 |
| 1996 | 58 | 0 |
| 1997 | 43 | 0 |
| 1998 | 52 | 0 |
| 1999 | 52 | 0 |
| 2000 | 52 | 0 |
| 2001 | 50 | 16 |
| 2002 | 57 | 48 |
| 2003 | 37 | 76 |
| 2004 | 58 | 82 |
| 2005 | 47 | 72 |
| 2006 | 52 | 82 |
| 2007 | 50 | 74 |
| 2008 | 45 | 75 |
| 2009 | 33 | 109 |
| 2010 | 69 | 134 |
| 2011 | 76 | 117 |
| 2012 | 75 | 105 |
| 2013 | 93 | 146 |
| 2014 | 99 | 144 |
| 2015 | 117 | 133 |
| 2016 | 116 | 124 |
| 2017 | 132 | 141 |
| 2018 | 109 | 174 |
| 2019 | 124 | 156 |
| 2020 | 128 | 160 |
| 2021 | 110 | 115 |
| 2022 | 102 | 167 |
| 2023 | 72 | 98 |
| 2024 | 85 | 100 |
| 2025 | 78 | 99 |
| 2026 | 31 | 42 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
Recent patents
- Method for producing modified conjugated diene polymer latex15 Sep 2026US 12,734,733 B2Zeon Corporation
- Process for preparing hydroxy-functionalized polybutadiene25 Aug 2026US 12,715,939 B2Evonik Operations GmbH
- High strength hydrogenated polymers, and rubber compositions incorporating same25 Aug 2026US 12,715,952 B2Bridgestone Corporation
- Rubber composition4 Aug 2026US 12,698,382 B2Compagnie Generale Des Etablissements Michelin
- Extraction of guayule resin28 Jul 2026US 12,691,391 B2Bridgestone Corporation
- Polyalkyl (meth)acrylate-based polymers with improved low temperature properties1 Oct 2026US 2026/0297236 A1Evonik Operations GmbH
- Process for the preparation of a thermoplastic molding compositions with good color stability17 Sep 2026US 2026/0275000 A1Ineos Styrolution Group GmbH
- Functional ethylene and 1,3-diene copolymers27 Aug 2026US 2026/0250497 A1Compagnie Generale Des Etablissements Michelin
- Conjugated diene - vinyl aromatic hydrocarbon copolymer and method thereof20 Aug 2026US 2026/0242575 A1TSRC Corporation
- Modifier, Modified Conjugated Diene-Based Polymer Comprising Same, and Method for Preparing the Polymer13 Aug 2026US 2026/0234298 A1LG Chem.Ltd.
Most cited
By later US patents
- Method and apparatus for controlling transmission power in a CDMA cellular mobile telephone system1,012US 5,056,109 AQUALCOMM Incorporated · 1991
- Polymerization process and polymers produced thereby194US 4,581,429 ACommonwealth Scientific and Industrial Research Organization · 1986
- Solid golf ball and process for producing the same194US 5,697,856 ASumitomo Rubber Industries, Ltd. · 1997
- Star polymers and process for the preparation thereof172US 3,985,830 AThe University of Akron · 1976
- Preparation of hydroxy-terminated conjugated diene polymers127US 4,039,593 ALithium Corporation of America · 1977