C08G 65/2693
Supported catalysts
Official title: {Supported catalysts}
C08G65/2693 (Supported catalysts) appears on 36 US grants and 12 published applications in this corpus.
Search patents in C08G- Granted patents
- 36
- Published applications
- 12
- Assignees
- 18
- Inventors
- 80
- Latest grant
- 21 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 5 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 4 |
| 2022 | 1 | 0 |
| 2023 | 4 | 2 |
| 2024 | 1 | 1 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Polyether polymerization process21 Jan 2025US 12,201,971 B2Dow Global Technologies LLC
- Highly active double metal cyanide compounds30 Jan 2024US 11,883,803 B2Henkel AG & Co. KGaA
- High-molecular weight allyl alcohol polyoxyethylene polyoxypropylene ether and preparation method19 Dec 2023US 11,845,831 B2Shangyu Huangma Surface Activated Reagent Research Institute Co., Ltd.
- Supported onium salts as initiators for the synthesis of polycarbonates by copolymerization of CO2 with epoxides12 Sep 2023US 11,753,503 B2King Abdullah University of Science and Technology
- Polyether polymerization process5 Sep 2023US 11,745,174 B2Dow Global Technologies LLC
- Skeleton supported catalyst and method for preparing allyl alcohol polyoxyethylene ether by using the same24 Jul 2025US 2025/0236704 A1Zhejiang Huangma Chemical New Polymer Material Co., Ltd
- Polyalkylene oxide ester polymer, its preparation and use25 Jul 2024US 2024/0247102 A1BASF SE
- Polyether Polymerization Process9 Nov 2023US 2023/0356207 A1Dow Global Technologies LLC
- High-molecular weight allyl alcohol polyoxyethylene polyoxypropylene ether and preparation method28 Sep 2023US 2023/0303768 A1Shangyu Huangma Surface Activated Reagent Research Institute Co., Ltd.
- Polyether Polymerization Process1 Jul 2021US 2021/0198425 A1Dow Global Technologies LLC
Most cited
By later US patents
- Heterogeneous alkoxylation using anion-bound metal oxides37US 5,025,094 AUnion Carbide Chemicals & Plastics Technology Corporation · 1991
- Polymerization of ethylene oxide using metal cyanide catalysts29US 6,429,342 B1Dow Global Technologies LLC · 2002
- Heterogeneous alkoxylation using anion-bound metal oxides24US 4,727,199 AUnion Carbide Corporation · 1988
- Polymerization of alkylene oxides using metal cyanide catalysts and unsaturated initiator compounds18US 6,355,845 B1The Dow Chemical Company · 2002
- Preparation of polytetrahydrofuran17US 5,773,648 ABASF SE · 1998