C08J 2421/00
Working-up: characterised by the use of unspecified rubbers
Official title: Characterised by the use of unspecified rubbers
C08J2421/00 (Working-up: characterised by the use of unspecified rubbers) appears on 172 US grants and 139 published applications in this corpus.
Search patents in C08J- Granted patents
- 172
- Published applications
- 139
- Assignees
- 149
- Inventors
- 455
- Latest grant
- 27 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 5 | 0 |
| 1995 | 5 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 9 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 1 |
| 2002 | 6 | 2 |
| 2003 | 2 | 6 |
| 2004 | 2 | 4 |
| 2005 | 1 | 8 |
| 2006 | 3 | 3 |
| 2007 | 2 | 11 |
| 2008 | 3 | 6 |
| 2009 | 2 | 4 |
| 2010 | 4 | 11 |
| 2011 | 1 | 5 |
| 2012 | 6 | 7 |
| 2013 | 2 | 6 |
| 2014 | 2 | 7 |
| 2015 | 6 | 8 |
| 2016 | 6 | 6 |
| 2017 | 10 | 3 |
| 2018 | 3 | 2 |
| 2019 | 6 | 9 |
| 2020 | 4 | 6 |
| 2021 | 1 | 7 |
| 2022 | 4 | 4 |
| 2023 | 6 | 1 |
| 2024 | 3 | 3 |
| 2025 | 2 | 5 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Encapsulation of modifiers in depolymerized products27 Jan 2026US 12,534,589 B2GreenMantra Recycling Technologies Ltd.
- Filled polymeric resin materials and methods of making20 Jan 2026US 12,528,939 B2NIKE, Inc.
- Polymeric dispersants from phenyl glycidyl ether26 Aug 2025US 12,398,246 B2Stepan Company
- Eco-friendly wearable dipped article and method of manufacturing21 Jan 2025US 12,201,172 B2Shen Wei (USA), Inc.
- Expandable media with flexible skin as tooling for composite parts1 Oct 2024US 12,104,034 B2The Boeing Company
- Method for processing rubber composite materials30 Jul 2026US 2026/0217939 A1Universiteit Antwerpen
- Encapsulation of Modifiers in Depolymerized Products23 Apr 2026US 2026/0109835 A1GreenMantra Recycling Technologies Ltd.
- Polymer resin ppd for antiozonant and antioxidant applications2 Apr 2026US 2026/0092146 A1The Goodyear Tire & Rubber Company
- Silica-natural rubber masterbatch process2 Apr 2026US 2026/0092153 A1The Goodyear Tire & Rubber Company
- Bitumen-containing mixtures, method for production and use thereof11 Dec 2025US 2025/0376595 A1LANXESS Deutschland GmbH
Most cited
By later US patents
- Reduced tack compositions useful for the production of reinforcing foams117US 6,348,513 B1Henkel Corporation · 2002
- Composite structure vascular prostheses113US 4,193,138 ASumitomo Electric Industries, Ltd. · 1980
- Polyether-derived polyurethane foam impregnant and method of application106US 4,224,374 AReeves Brothers, Inc. · 1980
- Skived foam article containing energy absorbing phase change material86US 5,851,338 AOutlast Technologies, Inc. · 1998
- Heterogeneous silica carbon black-filled rubber compound83US 5,696,197 AThe Goodyear Tire & Rubber Company · 1997