C08G 65/269
Mixed catalyst systems, i.e. containing more than one reactive component or catalysts
Official title: {Mixed catalyst systems, i.e. containing more than one reactive component or catalysts formed in-situ}
C08G65/269 (Mixed catalyst systems, i.e. containing more than one reactive component or catalysts) appears on 87 US grants and 56 published applications in this corpus.
Search patents in C08G- Granted patents
- 87
- Published applications
- 56
- Assignees
- 48
- Inventors
- 182
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 5 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 3 | 2 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 3 |
| 2007 | 0 | 3 |
| 2008 | 0 | 0 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 2 |
| 2014 | 1 | 4 |
| 2015 | 3 | 4 |
| 2016 | 3 | 4 |
| 2017 | 4 | 3 |
| 2018 | 3 | 0 |
| 2019 | 1 | 2 |
| 2020 | 2 | 5 |
| 2021 | 2 | 3 |
| 2022 | 1 | 3 |
| 2023 | 4 | 7 |
| 2024 | 4 | 1 |
| 2025 | 4 | 2 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for preparing polyether amine catalyst, and polyether amine14 Jul 2026US 12,679,931 B2Shangyu Huangma Surface Activated Reagent Research Institute Co., Ltd.
- Alkylene oxide polymerization using aluminum compounds and cyclic amidines26 May 2026US 12,637,541 B2Dow Global Technologies LLC
- Alkylene oxide polymerization using aluminum compounds and phosphorus-nitrogen bases14 Apr 2026US 12,600,816 B2Dow Global Technologies LLC
- Ethoxylated glycerol esters and method for the production thereof25 Nov 2025US 12,479,957 B2Clariant International Ltd.
- Ethoxylated glycerol ester-containing detergent for machine dishwashing25 Nov 2025US 12,480,073 B2Clariant International Ltd.
- Controlled addition of ligand in polyol synthesis30 Jul 2026US 2026/0217898 A1Repsol, S. A.
- Alkylene oxide polymerization using aluminum compounds and phosphorus-nitrogen bases2 Jul 2026US 2026/0184848 A1Dow Global Technologies LLC
- Composite catalyst for catalyzing polymerization of cyclic ethers, a preparation method and a use thereof20 Nov 2025US 2025/0353957 A1Shanghai DiYang Chemical Technology Co., Ltd.
- Processes and production plants for producing polyols6 Nov 2025US 2025/0340698 A1Covestro LLC
- Method for preparing surfactants by copolymerisation of epoxides and co2 using a mixture of a macrocyclic bimetal catalyst and a double metal cyanide catalyst10 Oct 2024US 2024/0336732 A1Econic Technologies Ltd.
Most cited
By later US patents
- Process for alkylene oxide polymerization61US 4,667,013 AUnion Carbide Corporation · 1987
- Photo-curable epoxy resin type composition34US 4,975,471 AKabushiki Kaisha Toshiba · 1990
- Alkoxylation using modified calcium-containing bimetallic or polymetallic catalysts30US 5,114,900 AUnion Carbide Chemicals & Plastics Technology Corporation · 1992
- Alkoxylation process using calcium based catalysts28US 4,775,653 AVista Chemical Company · 1988
- Preparation of nonionic surfactants27US 4,721,816 AShell Oil Company · 1988