C08C 3/02
Purification
C08C3/02 (Purification) appears on 47 US grants and 47 published applications in this corpus.
Search patents in C08C- Granted patents
- 47
- Published applications
- 47
- Assignees
- 31
- Inventors
- 95
- Latest grant
- 15 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 2 | 1 |
| 2005 | 0 | 2 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 3 |
| 2012 | 2 | 0 |
| 2013 | 0 | 3 |
| 2014 | 4 | 4 |
| 2015 | 2 | 3 |
| 2016 | 1 | 5 |
| 2017 | 6 | 7 |
| 2018 | 6 | 4 |
| 2019 | 5 | 1 |
| 2020 | 1 | 3 |
| 2021 | 1 | 0 |
| 2022 | 4 | 3 |
| 2023 | 1 | 1 |
| 2024 | 2 | 2 |
| 2025 | 1 | 2 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Processes for the removal of rubber from non-Hevea plants15 Jul 2025US 12,359,004 B2Bridgestone Corporation
- Processes for removing color bodies from guayule3 Dec 2024US 12,157,780 B2Bridgestone Corporation
- Carboxyl group-containing nitrile rubber8 Oct 2024US 12,110,348 B2Zeon Corporation
- Processes for the removal of rubber from non-Hevea plants5 Dec 2023US 11,834,526 B2Bridgestone Corporation
- Guayule latex extrusion13 Sep 2022US 11,440,977 B2Cooper Tire & Rubber Company
- Method for producing thermoplastic moulding compounds5 Mar 2026US 2026/0062503 A1Ineos Styrolution Group GmbH
- Processes For The Removal Of Rubber From Non-Hevea Plants6 Nov 2025US 2025/0340676 A1Bridgestone Corporation
- Processes For Removing Color Bodies From Guayule20 Mar 2025US 2025/0092163 A1Bridgestone Corporation
- Purified guayule natural rubber and related processes10 Oct 2024US 2024/0336708 A1Bridgestone Corporation
- Processes For The Removal Of Rubber From Non-Hevea Plants28 Mar 2024US 2024/0101722 A1Bridgestone Corporation
Most cited
By later US patents
- Processes for recovering rubber from natural rubber latex25US 8,815,965 B2Bridgestone Corporation · 2014
- Processes for the removal of rubber from non-hevea plants18US 9,315,589 B2Bridgestone Corporation · 2016
- Rubber composition for tire, and pneumatic tire16US 8,813,798 B2Sumitomo Rubber Industries, Ltd. · 2014
- Rubber composition for clinch apex and pneumatic tire16US 8,875,765 B2Sumitomo Rubber Industries, Ltd. · 2014
- Processes for recovering rubber from aged briquettes and aged briquettes containing plant matter from non-Hevea plants16US 9,637,562 B2Bridgestone Corporation · 2017