C08G 77/34
Purification
C08G77/34 (Purification) appears on 139 US grants and 95 published applications in this corpus.
Search patents in C08G- Granted patents
- 139
- Published applications
- 95
- Assignees
- 60
- Inventors
- 358
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 5 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 6 | 0 |
| 1994 | 5 | 0 |
| 1995 | 5 | 0 |
| 1996 | 6 | 0 |
| 1997 | 7 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 1 |
| 2002 | 6 | 7 |
| 2003 | 4 | 8 |
| 2004 | 6 | 5 |
| 2005 | 3 | 7 |
| 2006 | 3 | 4 |
| 2007 | 2 | 3 |
| 2008 | 3 | 5 |
| 2009 | 4 | 1 |
| 2010 | 1 | 1 |
| 2011 | 1 | 3 |
| 2012 | 1 | 2 |
| 2013 | 1 | 3 |
| 2014 | 3 | 1 |
| 2015 | 3 | 7 |
| 2016 | 2 | 5 |
| 2017 | 5 | 4 |
| 2018 | 7 | 2 |
| 2019 | 2 | 1 |
| 2020 | 2 | 3 |
| 2021 | 3 | 5 |
| 2022 | 2 | 3 |
| 2023 | 2 | 5 |
| 2024 | 2 | 3 |
| 2025 | 3 | 3 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Intraocular lens materials and components28 Apr 2026US 12,611,296 B2Alcon Inc.
- (Meth)acrylate functional silicone and methods for its preparation and use23 Dec 2025US 12,503,554 B2Dow Silicones Corporation
- Fluid for accommodating intraocular lenses23 Sep 2025US 12,419,738 B2Alcon Inc.
- Physical characteristics of polysilylether polymers in additive manufacturing of energetic materials12 Aug 2025US 12,384,917 B1The United States of America as represented by the Secretary of the Navy
- Optical member with reduced low-molecular-weight siloxane content, and method for producing same17 Sep 2024US 12,092,792 B2Asahi Rubber Inc.
- Synthesis of fluoro-silicon polymer13 Aug 2026US 2026/0234340 A1
- Intraocular lens materials and components6 Aug 2026US 2026/0224350 A1Alcon Inc.
- Liquid phase extraction of tritiated and radiation-generated impurities from organic and organosilicon oils23 Apr 2026US 2026/0109815 A1Battelle Savannah River Alliance, LLC
- Fluid for accommodating intraocular lenses25 Dec 2025US 2025/0387219 A1Alcon Inc.
- Silicone purification and deodorization process from washing cosmetic manufacturing lines13 Nov 2025US 2025/0346722 A1Especialidades QuíMicas Globales De MéXico, S.A.P.I. De C.V.
Most cited
By later US patents
- Optically clear reinforced silicone elastomers of high optical refractive index and improved mechanical properties for use in intraocular lenses129US 5,236,970 AAllergan, Inc. · 1993
- Fluid for accommodating intraocular lenses99US 8,900,298 B2PowerVision, Inc. · 2014
- Vitreoretinal silicone tamponades made by supercritical fluid extraction67US 7,276,619 B2Bausch & Lomb Incorporated · 2007
- Process for stabilization of dry cleaning solutions63US 6,368,359 B1General Electric Company · 2002
- Process for working up polyethersiloxanes56US 7,612,159 B2Goldschmidt GmbH · 2009