B01J 31/2278
Complexes comprising two carbene ligands differing from each other
Official title: {Complexes comprising two carbene ligands differing from each other, e.g. Grubbs second generation catalysts}
B01J31/2278 (Complexes comprising two carbene ligands differing from each other) appears on 200 US grants and 264 published applications in this corpus.
Search patents in B01J- Granted patents
- 200
- Published applications
- 264
- Assignees
- 118
- Inventors
- 434
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2003 | 1 | 1 |
| 2004 | 0 | 2 |
| 2005 | 2 | 0 |
| 2006 | 1 | 3 |
| 2007 | 1 | 3 |
| 2008 | 2 | 3 |
| 2009 | 2 | 6 |
| 2010 | 3 | 8 |
| 2011 | 3 | 9 |
| 2012 | 3 | 8 |
| 2013 | 11 | 17 |
| 2014 | 12 | 14 |
| 2015 | 13 | 29 |
| 2016 | 14 | 19 |
| 2017 | 23 | 12 |
| 2018 | 14 | 14 |
| 2019 | 10 | 15 |
| 2020 | 15 | 19 |
| 2021 | 16 | 23 |
| 2022 | 16 | 18 |
| 2023 | 16 | 9 |
| 2024 | 14 | 13 |
| 2025 | 5 | 13 |
| 2026 | 3 | 6 |
By publication year. 2026 runs to 8 Oct.
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.
- Process for producing ruthenium complexes and intermediates thereof and their use in olefin metathesis21 Oct 2025US 12,448,404 B2Apeiron Synthesis S. A.
- Longer-lived ruthenium olefin metathesis catalysts supported by hemi-labile carbene ligands14 Oct 2025US 12,440,831 B2The Trustees of the California State University
- 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
- Polymerizable composition and norbornene resin7 May 2026US 2026/0125501 A1Rimtec Corporation
- Novel ruthenium complexes, method of their synthesis, intermediate compounds used in this method, method of their synthesis and use of novel ruthenium complexes in olefin metathesis reactions2 Apr 2026US 2026/0092080 A1Uniwersytet Warszawski
- Cyclic olefin polymer having high cis double bond content15 Jan 2026US 2026/0015440 A1Board of Regents, The University of Texas System
Most cited
By later US patents
- Imidazolidine-based metal carbene metathesis catalysts79US 7,329,758 B1California Institute of Technology · 2008
- Chelating carbene ligand precursors and their use in the synthesis of metathesis catalysts57US 7,026,495 B1Materia, Inc. · 2006
- Chelating carbene ligand precursors and their use in the synthesis of metathesis catalysts56US 6,620,955 B12003
- Catalyst complex with carbene ligand31US 7,622,590 B1University of New Orleans Foundation · 2009
- Process for continuous ruthenium-catalysed metathesis31US 7,838,711 B2Boehringer Ingelheim International GmbH · 2010