C08C 1/04
Purifying
Official title: Purifying; Deproteinising
C08C1/04 (Purifying) appears on 143 US grants and 143 published applications in this corpus.
Search patents in C08C- Granted patents
- 143
- Published applications
- 143
- Assignees
- 82
- Inventors
- 282
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 1 |
| 2002 | 5 | 4 |
| 2003 | 0 | 5 |
| 2004 | 4 | 4 |
| 2005 | 3 | 4 |
| 2006 | 3 | 8 |
| 2007 | 1 | 4 |
| 2008 | 2 | 4 |
| 2009 | 2 | 5 |
| 2010 | 4 | 7 |
| 2011 | 6 | 16 |
| 2012 | 9 | 4 |
| 2013 | 5 | 7 |
| 2014 | 11 | 7 |
| 2015 | 3 | 8 |
| 2016 | 2 | 6 |
| 2017 | 7 | 11 |
| 2018 | 11 | 6 |
| 2019 | 4 | 6 |
| 2020 | 7 | 4 |
| 2021 | 4 | 4 |
| 2022 | 6 | 8 |
| 2023 | 3 | 1 |
| 2024 | 4 | 6 |
| 2025 | 2 | 3 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for separating polyisoprene and other apolar valuable substances from vegetable feedstock24 Mar 2026US 12,583,953 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein
- Deproteinized natural rubber latex and preparation method3 Mar 2026US 12,565,576 B2Hunan Vontex New Material Technology Co., Ltd
- Processes for the removal of rubber from non-Hevea plants15 Jul 2025US 12,359,004 B2Bridgestone Corporation
- Method for producing purified chloroprene-based-polymer latex17 Jun 2025US 12,331,137 B2Resonac Corporation
- Processes for removing color bodies from guayule3 Dec 2024US 12,157,780 B2Bridgestone Corporation
- Processes For The Removal Of Rubber From Non-Hevea Plants6 Nov 2025US 2025/0340676 A1Bridgestone Corporation
- Method for recovering platinum group element3 Jul 2025US 2025/0215525 A1Zeon Corporation
- Processes For Removing Color Bodies From Guayule20 Mar 2025US 2025/0092163 A1Bridgestone Corporation
- Process for removing protein contents from rubber glove and rubber glove product resulting therefrom28 Nov 2024US 2024/0389688 A1Sri Trang Gloves (Thailand) Public Company Limited
- Purified guayule natural rubber and related processes10 Oct 2024US 2024/0336708 A1Bridgestone Corporation
Most cited
By later US patents
- Method and apparatus for controlling transmission power in a CDMA cellular mobile telephone system1,012US 5,056,109 AQUALCOMM Incorporated · 1991
- Reduced-lipid natural rubber latex59US 5,998,512 AThe University of Akron · 1999
- Hypoallergenic natural rubber products from parthenum argentatum (gray) and other non-hevea brasiliensis species45US 5,580,942 AThe United States of America as represented by the Secretary of Agriculture · 1996
- Hypoallergenic natural rubber products from parthenium argentatum (gray) and other non-hevea brasiliensis species31US 5,717,050 AThe United States of America as represented by the Secretary of Agriculture · 1998
- Biopolymer extraction from plant materials31US 7,923,039 B2Yulex Corporation · 2011