B01J 2231/328
Cycloadditions involving more than 2 components or moieties
Official title: Cycloadditions involving more than 2 components or moieties, e.g. intra-/intermolecualar [2+2+2] or [2+2+1], e.g. Pauson-Khand type
B01J2231/328 (Cycloadditions involving more than 2 components or moieties) appears on 23 US grants and 14 published applications in this corpus.
Search patents in B01J- Granted patents
- 23
- Published applications
- 14
- Assignees
- 15
- Inventors
- 58
- Latest grant
- 30 Jan 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 3 |
| 2017 | 0 | 3 |
| 2018 | 3 | 1 |
| 2019 | 1 | 0 |
| 2020 | 1 | 1 |
| 2021 | 0 | 1 |
| 2022 | 2 | 2 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for producing a spirooxindole derivative30 Jan 2024US 11,884,678 B2Daiichi Sankyo Company, Limited
- Method of fixating carbon dioxide to substituted oxazolidinones15 Nov 2022US 11,498,906 B1King Fahd University of Petroleum and Minerals
- Selective cyclocarbonylative coupling of 2-iodophenols with terminal alkynes catalyzed by bridged bis(NHC)Pd(II)Br2 catalysts1 Feb 2022US 11,236,118 B1King Fahd University of Petroleum and Minerals
- Method for producing a spirooxindole derivative1 Dec 2020US 10,851,111 B2Daiichi Sankyo Company, Limited
- Methods, compositions, and kits using heterogeneous catalysts16 Apr 2019US 10,259,838 B2Occidental College
- Chiral spirocyclic compounds and methods of preparation and use thereof17 Jul 2025US 2025/0229262 A1The Hong Kong University of Science and Technology
- Active heterogenized palladium-bridged-nhc catalysts for carbonylative sonogashira coupling reactions29 Dec 2022US 2022/0411451 A1King Fahd University of Petroleum and Minerals
- Method for producing a spirooxindole derivative18 Aug 2022US 2022/0259216 A9Daiichi Sankyo Company, Limited
- Method for producing a spirooxindole derivative21 Oct 2021US 2021/0323970 A1Daiichi Sankyo Company, Limited
- Method for producing a spirooxindole derivative4 Jun 2020US 2020/0172548 A9Daiichi Sankyo Company, Limited
Most cited
By later US patents
- Catalyst for trimerization of ethylene and process for trimerizing ethylene using the catalyst27US 6,337,297 B12002
- Catalytic production of pyridines from alkynes and nitriles22US 4,006,149 AStudiengesellschaft Kohle mbH · 1977
- Method for the cyclotrimerization of alkynes in aqueous solutions16US 5,760,266 ANeXstar Pharmaceuticals, Inc. · 1998
- Platinum and palladium complexes15US 4,098,807 AAir Products and Chemicals, Inc. · 1978
- Transition metal complexes9US 4,999,443 ABASF SE · 1991