C08C 19/00
Chemical modification of rubber
C08C19/00 (Chemical modification of rubber) appears on 2,727 US grants and 2,394 published applications in this corpus.
Search patents in C08C- Granted patents
- 2,727
- Published applications
- 2,394
- Assignees
- 656
- Inventors
- 4,221
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 54 | 0 |
| 1977 | 43 | 0 |
| 1978 | 58 | 0 |
| 1979 | 38 | 0 |
| 1980 | 30 | 0 |
| 1981 | 32 | 0 |
| 1982 | 30 | 0 |
| 1983 | 37 | 0 |
| 1984 | 26 | 0 |
| 1985 | 48 | 0 |
| 1986 | 22 | 0 |
| 1987 | 25 | 0 |
| 1988 | 24 | 0 |
| 1989 | 40 | 0 |
| 1990 | 38 | 0 |
| 1991 | 47 | 0 |
| 1992 | 41 | 0 |
| 1993 | 51 | 0 |
| 1994 | 46 | 0 |
| 1995 | 37 | 0 |
| 1996 | 51 | 0 |
| 1997 | 35 | 0 |
| 1998 | 40 | 0 |
| 1999 | 44 | 0 |
| 2000 | 37 | 0 |
| 2001 | 40 | 12 |
| 2002 | 42 | 38 |
| 2003 | 31 | 60 |
| 2004 | 49 | 70 |
| 2005 | 38 | 62 |
| 2006 | 46 | 68 |
| 2007 | 48 | 59 |
| 2008 | 42 | 64 |
| 2009 | 25 | 96 |
| 2010 | 59 | 124 |
| 2011 | 68 | 92 |
| 2012 | 64 | 94 |
| 2013 | 80 | 128 |
| 2014 | 81 | 128 |
| 2015 | 103 | 110 |
| 2016 | 101 | 108 |
| 2017 | 111 | 116 |
| 2018 | 92 | 148 |
| 2019 | 108 | 131 |
| 2020 | 106 | 136 |
| 2021 | 96 | 104 |
| 2022 | 84 | 142 |
| 2023 | 64 | 93 |
| 2024 | 78 | 87 |
| 2025 | 71 | 88 |
| 2026 | 26 | 36 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C08C 19/30Addition of a reagent which reacts with a hetero atom or a1,333
- C08C 19/25Incorporating silicon atoms into the molecule496
- C08C 19/22Incorporating nitrogen atoms into the molecule489
- C08C 19/02Hydrogenation465
- C08C 19/04Oxidation192
- C08C 19/20Incorporating sulfur atoms into the molecule178
- C08C 19/28Reaction with compounds containing carbon-to-carbon unsaturated bonds161
- C08C 19/08Depolymerisation126
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
- Method for the devulcanisation of a vulcanisaed rubber mixture, device for carrying out the method, as well as a rubber mixture and vehicle pneumatic tyre, comprising a component made of the rubber mixture28 Jul 2026US 12,691,624 B2Continental Reifen Deutschland GmbH
- Polyalkyl (meth)acrylate-based polymers with improved low temperature properties1 Oct 2026US 2026/0297236 A1Evonik Operations 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.
- Rubber composition for pneumatic tyre and pneumatic tyre produced therefrom13 Aug 2026US 2026/0234375 A1
Most cited
By later US patents
- 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
- Preparation of conjugated diene polymers modified with an organo-tin or germanium halide123US 5,064,910 AJapan Synthetic Rubber Co., Ltd. · 1991