C08F 136/08
Isoprene
C08F136/08 (Isoprene) appears on 180 US grants and 210 published applications in this corpus.
Search patents in C08F- Granted patents
- 180
- Published applications
- 210
- Assignees
- 106
- Inventors
- 519
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 2 |
| 2003 | 3 | 2 |
| 2004 | 1 | 3 |
| 2005 | 1 | 4 |
| 2006 | 4 | 2 |
| 2007 | 1 | 1 |
| 2008 | 2 | 1 |
| 2009 | 0 | 2 |
| 2010 | 1 | 1 |
| 2011 | 0 | 2 |
| 2012 | 1 | 1 |
| 2013 | 2 | 4 |
| 2014 | 0 | 11 |
| 2015 | 11 | 17 |
| 2016 | 13 | 14 |
| 2017 | 13 | 15 |
| 2018 | 7 | 18 |
| 2019 | 16 | 16 |
| 2020 | 13 | 11 |
| 2021 | 5 | 25 |
| 2022 | 5 | 9 |
| 2023 | 15 | 27 |
| 2024 | 13 | 12 |
| 2025 | 17 | 8 |
| 2026 | 11 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Compositions containing polyisobutylene, processes for producing, and uses thereof1 Sep 2026US 12,723,187 B2NTP Tec, LLC
- Process for preparing hydroxy-functionalized polybutadiene25 Aug 2026US 12,715,939 B2Evonik Operations GmbH
- Rare-earth catalysed polyisoprene articles14 Jul 2026US 12,679,936 B2LifeStyles Healthcare Pte. Ltd.
- Desulfurized rubber, rubber composition, rubber composition for tire, tire, hose, belt, crawler2 Jun 2026US 12,643,960 B2Bridgestone Corporation
- Methods for producing polyisoprene latex dispersions12 May 2026US 12,624,131 B2Bridgestone Corporation
- Compositions containing polyisobutylene, processes for producing, and uses thereof23 Apr 2026US 2026/0109892 A1NTP Tec, LLC
- Compositions containing polyisobutylene, processes for producing, and uses thereof23 Apr 2026US 2026/0109893 A1NTP Tec, LLC
- Constrained Geometry Metal-Ligand Complexes and Use Thereof in Olefin Polymerization4 Dec 2025US 2025/0368760 A1
- Method for Preparing Liquid Rubber and Liquid Rubber Prepared Therefrom20 Nov 2025US 2025/0353937 A1LG Chem.Ltd.
- Functionalization of soluble polydienes and polyisoprenes using dithiophosphoric acids6 Nov 2025US 2025/0340677 A1Arizona Board of Regents on Behalf of the University of Arizona
Most cited
By later US patents
- (Co)polymers and a novel polymerization process based on atom (or group) transfer radical polymerization287US 5,763,548 ACarnegie Mellon University · 1998
- Atom or group transfer radical polymerization117US 6,512,060 B1Carnegie Mellon University · 2003
- (Co)polymers and a novel polymerization process based on atom (or group) transfer radical polymerization107US 6,407,187 B1Carnegie Mellon University · 2002
- Vapor phase synthesis of rubbery polymers85US 5,652,304 AThe Goodyear Tire & Rubber Company · 1997
- (Co) polymers and a novel polymerization process based on atom (or group) transfer radical polymerization66US 6,624,263 B2Carnegie Mellon University · 2003