C08L 21/00
Compositions of unspecified rubbers
C08L21/00 (Compositions of unspecified rubbers) appears on 2,566 US grants and 2,405 published applications in this corpus.
Search patents in C08L- Granted patents
- 2,566
- Published applications
- 2,405
- Assignees
- 912
- Inventors
- 5,175
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 39 | 0 |
| 1977 | 27 | 0 |
| 1978 | 36 | 0 |
| 1979 | 15 | 0 |
| 1980 | 27 | 0 |
| 1981 | 36 | 0 |
| 1982 | 25 | 0 |
| 1983 | 37 | 0 |
| 1984 | 18 | 0 |
| 1985 | 31 | 0 |
| 1986 | 33 | 0 |
| 1987 | 15 | 0 |
| 1988 | 23 | 0 |
| 1989 | 35 | 0 |
| 1990 | 31 | 0 |
| 1991 | 46 | 0 |
| 1992 | 41 | 0 |
| 1993 | 40 | 0 |
| 1994 | 51 | 0 |
| 1995 | 35 | 0 |
| 1996 | 38 | 0 |
| 1997 | 40 | 0 |
| 1998 | 34 | 0 |
| 1999 | 35 | 0 |
| 2000 | 60 | 0 |
| 2001 | 77 | 24 |
| 2002 | 65 | 84 |
| 2003 | 64 | 73 |
| 2004 | 50 | 101 |
| 2005 | 50 | 95 |
| 2006 | 45 | 114 |
| 2007 | 58 | 117 |
| 2008 | 52 | 128 |
| 2009 | 49 | 136 |
| 2010 | 78 | 177 |
| 2011 | 101 | 127 |
| 2012 | 85 | 93 |
| 2013 | 73 | 101 |
| 2014 | 77 | 104 |
| 2015 | 103 | 122 |
| 2016 | 73 | 92 |
| 2017 | 101 | 97 |
| 2018 | 82 | 130 |
| 2019 | 83 | 106 |
| 2020 | 93 | 116 |
| 2021 | 65 | 88 |
| 2022 | 55 | 59 |
| 2023 | 41 | 42 |
| 2024 | 44 | 34 |
| 2025 | 29 | 33 |
| 2026 | 25 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for producing stabilized lignin having a high specific surface area6 Oct 2026US 12,753,283 B2Suncoal Industries GmbH
- Cellulose composite resin and method for the production thereof6 Oct 2026US 12,753,293 B2Panasonic Holdings Corporation
- Rubber composition for dynamic or static applications, process for preparing same and products incorporating same18 Aug 2026US 12,709,681 B2Hutchinson
- System for manufacturing polymer parts via additive manufacturing28 Jul 2026US 12,692,350 B2Honeywell Federal Manufacturing & Technologies, LLC
- Structural bonding adhesive21 Jul 2026US 12,686,740 B2Zephyros, Inc.
- Injection-molded body, method for manufacturing injection-molded body, and device20 Aug 2026US 2026/0241621 A1Canon Kabushiki Kaisha
- Sulphur-crosslinkable rubber mixture, vulcanisate of the rubber mixture, and vehicle tyre6 Aug 2026US 2026/0225402 A1Continental Reifen Deutschland GmbH
- Hollow particles, elastomer composition and elastomer crosslinked molded body30 Jul 2026US 2026/0216682 A1Zeon Corporation
- Rubber compositions comprising antidegradants23 Jul 2026US 2026/0209483 A1Flexsys America L. P.
- Rubber composition16 Jul 2026US 2026/0200268 A1Compagnie Generale Des Etablissements Michelin
Most cited
By later US patents
- Manual controlled scrolling217US 6,707,449 B2Microsoft Corporation · 2004
- Toner processes180US 6,756,176 B2Xerox Corporation · 2004
- Process of manufacturing porous multi-expanded fluoropolymers170US 5,071,609 ABaxter International Inc. · 1991
- Water-swellable elastomer composition157US 4,590,227 ASeitetsu Kagaku Co., Ltd. · 1986
- Thermoplastic compositions of high unsaturation diene rubber and polyolefin resin146US 4,104,210 AMonsanto Company · 1978