C08F 8/48
Isomerisation
Official title: Isomerisation; Cyclisation
C08F8/48 (Isomerisation) appears on 367 US grants and 229 published applications in this corpus.
Search patents in C08F- Granted patents
- 367
- Published applications
- 229
- Assignees
- 205
- Inventors
- 851
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 8 | 0 |
| 1987 | 11 | 0 |
| 1988 | 5 | 0 |
| 1989 | 10 | 0 |
| 1990 | 13 | 0 |
| 1991 | 12 | 0 |
| 1992 | 11 | 0 |
| 1993 | 7 | 0 |
| 1994 | 14 | 0 |
| 1995 | 18 | 0 |
| 1996 | 11 | 0 |
| 1997 | 15 | 0 |
| 1998 | 13 | 0 |
| 1999 | 11 | 0 |
| 2000 | 8 | 0 |
| 2001 | 9 | 2 |
| 2002 | 5 | 2 |
| 2003 | 5 | 4 |
| 2004 | 6 | 8 |
| 2005 | 4 | 13 |
| 2006 | 6 | 11 |
| 2007 | 5 | 7 |
| 2008 | 7 | 10 |
| 2009 | 6 | 8 |
| 2010 | 12 | 10 |
| 2011 | 6 | 11 |
| 2012 | 5 | 11 |
| 2013 | 9 | 5 |
| 2014 | 4 | 9 |
| 2015 | 4 | 5 |
| 2016 | 10 | 9 |
| 2017 | 7 | 10 |
| 2018 | 5 | 14 |
| 2019 | 4 | 16 |
| 2020 | 15 | 16 |
| 2021 | 15 | 16 |
| 2022 | 6 | 7 |
| 2023 | 5 | 10 |
| 2024 | 11 | 8 |
| 2025 | 6 | 3 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Functional derivatives of maleimide copolymers for nanodisc production19 May 2026US 12,629,341 B2The Governors of the University of Alberta
- Glycidyl-containing polymers, polymer compositions comprising them and their use in electrochemical cells3 Feb 2026US 12,540,207 B2Hydro-Quebec
- Sigmatropic rearrangements of polymer backbones23 Dec 2025US 12,503,550 B2The University of North Carolina at Chapel Hill
- Acrylic polymer18 Nov 2025US 12,473,388 B2Nippon Shokubai Co., Ltd.
- Polymer glass transition temperature manipulation via z/e hydrazone photoswitching7 Oct 2025US 12,435,166 B2Trustees of Dartmouth College
- Resin composition, molded body, component for optical applications, and component for vehicles2 Jul 2026US 2026/0184831 A1Mitsubishi Chemical Corporation
- High refractive index polyvinyl acetal resins modified with cyclic aldehydes23 Apr 2026US 2026/0109795 A1Eastman Chemical Company
- Glycidyl-containing polymers, polymer compositions comprising them and their use in electrochemical cells16 Apr 2026US 2026/0103555 A1Hydro-Quebec
- Sigmatropic rearrangements of polymer backbones19 Mar 2026US 2026/0078215 A1
- Medium molecular polyisobutene with a certain distribution of double bond isomers5 Jun 2025US 2025/0179224 A1BASF SE
Most cited
By later US patents
- Cement admixture product having improved rheological properties and process of forming same130US 5,643,978 AW. R. Grace & Co.-Conn. · 1997
- Cement and cement composition having improved rheological properties127US 5,393,343 AW. R. Grace & Co.-Conn. · 1995
- Ashless dispersants formed from substituted acylating agents and their production and use115US 5,241,003 AEthyl Petroleum Additives, Inc. · 1993
- Cement admixture product having improved rheological properties and process of forming same115US 5,633,298 AW. R. Grace & Co.-Conn. · 1997
- Polymeric additives for fuels and lubricants97US 4,089,794 AExxon Research & Engineering Co. · 1978