B01J 2231/54
Metathesis reactions
Official title: Metathesis reactions, e.g. olefin metathesis
B01J2231/54 (Metathesis reactions) appears on 430 US grants and 445 published applications in this corpus.
Search patents in B01J- Granted patents
- 430
- Published applications
- 445
- Assignees
- 208
- Inventors
- 832
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 8 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 5 | 0 |
| 1998 | 10 | 0 |
| 1999 | 11 | 0 |
| 2000 | 11 | 0 |
| 2001 | 13 | 2 |
| 2002 | 5 | 9 |
| 2003 | 14 | 15 |
| 2004 | 8 | 11 |
| 2005 | 10 | 17 |
| 2006 | 6 | 11 |
| 2007 | 10 | 7 |
| 2008 | 5 | 13 |
| 2009 | 4 | 12 |
| 2010 | 13 | 14 |
| 2011 | 8 | 14 |
| 2012 | 11 | 13 |
| 2013 | 16 | 26 |
| 2014 | 15 | 20 |
| 2015 | 17 | 36 |
| 2016 | 24 | 29 |
| 2017 | 29 | 27 |
| 2018 | 21 | 20 |
| 2019 | 15 | 24 |
| 2020 | 18 | 22 |
| 2021 | 17 | 25 |
| 2022 | 20 | 23 |
| 2023 | 17 | 11 |
| 2024 | 17 | 16 |
| 2025 | 7 | 20 |
| 2026 | 5 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Frontal polymerization using encapsulated catalysts16 Jun 2026US 12,655,250 B1National Technology & Engineering Solutions of Sandia, LLC
- Ruthenium complexes, methods of their preparation and application thereof in olefin cross metathesis12 May 2026US 12,624,060 B2Apeiron Synthesis S. A.
- Method for producing fluorine-containing olefin31 Mar 2026US 12,590,047 B2AGC Inc.
- Ring opening metathesis catalyst systems for cyclic olefin polymerization17 Feb 2026US 12,552,878 B2ExxonMobil Chemical Patents Inc.
- Synthesis of novel vanadium alkylidyne complexes and their use in metathesis reactions13 Jan 2026US 12,522,622 B1The Florida International University Board of Trustees
- Novel ruthenium complexes, method of their synthesis, intermediate compounds used in this method, method of their synthesis and the use of novel ruthenium complexes in olefin metathesis reactions3 Sep 2026US 2026/0258066 A1
- Cycloolefin resin composition, resin material, preparation method therefor, and use thereof2 Jul 2026US 2026/0184913 A1Shanghai Sinochem Science & Technology Co., Ltd
- Catalysts for Olefin Metathesis, Methods of Preparation, and Processes for the Use Thereof11 Jun 2026US 2026/0158480 A1
- Zinc boryl complex and its preparation11 Jun 2026US 2026/0159532 A1City University of Hong Kong
- Polymerizable composition and norbornene resin7 May 2026US 2026/0125501 A1Rimtec Corporation
Most cited
By later US patents
- High metathesis activity ruthenium and osmium metal carbene complexes146US 5,831,108 ACalifornia Institute of Technology · 1998
- Olefin metathesis coupling using ruthenium and osmium carbene complexes113US 5,750,815 ACalifornia Institute of Technology · 1998
- Method of preparing ruthenium and osmium carbene complexes104US 5,710,298 ACalifornia Institute of Technology · 1998
- Polymer depolymerization using ruthenium and osmium carbene complexes98US 5,728,917 ACalifornia Institute of Technology · 1998
- High activity ruthenium and osmium metal carbene complexes for olefin metathesis reactions95US 5,969,170 ACalifornia Institute of Technology · 1999