B01J 31/0241
Imines or enamines
Official title: {Imines or enamines}
B01J31/0241 (Imines or enamines) appears on 34 US grants and 37 published applications in this corpus.
Search patents in B01J- Granted patents
- 34
- Published applications
- 37
- Assignees
- 49
- Inventors
- 174
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 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 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 2 |
| 2015 | 0 | 3 |
| 2016 | 2 | 5 |
| 2017 | 3 | 1 |
| 2018 | 4 | 3 |
| 2019 | 4 | 5 |
| 2020 | 0 | 1 |
| 2021 | 5 | 2 |
| 2022 | 0 | 1 |
| 2023 | 1 | 3 |
| 2024 | 3 | 3 |
| 2025 | 0 | 4 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Access to chiral bisphenol (BPOL) ligands through desymmetrizing asymmetric ortho-selective mono-halogenation26 May 2026US 12,637,403 B2The Chinese University of Hong Kong
- Photothermal catalytic method for production of hydrogen peroxide without sacrificial reagents on basis of porphyrin-based supermolecule3 Mar 2026US 12,565,426 B2Jiangnan University
- Method of preparing indolin-2-one compound and method of using indolin-2-one8 Oct 2024US 12,110,273 B2Hefei University of Technology
- Synthesis method of lactide by confinement effect catalysis of crystalline porous polymer material21 May 2024US 11,987,567 B2Qingdao University of Science and Technology
- Access to chiral bisphenol (BPOL) ligands through desymmetrizing asymmetric ortho-selective mono-halogenation20 Feb 2024US 11,905,237 B2The Chinese University of Hong Kong
- Tocopherol derivative, preparation method therefor, and use thereof4 Jun 2026US 2026/0152477 A1Shanghai Coachchem Technology Co., Ltd.
- Method for recycling polyester blend fabric1 May 2025US 2025/0136781 A1Qingdao Amino Material Technology Co. Ltd
- Photoredox methods for radiocyanation of arenes and use thereof24 Apr 2025US 2025/0129016 A1The University of North Carolina at Chapel Hill
- Process for preparing histone demethylase inhibitors24 Apr 2025US 2025/0129056 A1Celgene Corporation
- Iminium salts with a barralene ring, corresponding ruthenium complexes, and uses thereof6 Feb 2025US 2025/0042854 A1Centre National De La Recherche Scientifique
Most cited
By later US patents
- Catalyst system and method for reaction of olefin17US 6,127,301 ASumitomo Chemical Company, Limited · 2000
- Process for making ethylene glycol12US 3,940,432 AUnion Carbide Corporation · 1976
- Catalytic process for polyhydric alcohols and derivatives11US 3,948,965 AUnion Carbide Corporation · 1976
- Process for preparing 1-substituted 2-methyl-tetrahydropyrimidines11US 4,001,232 ABayer Aktiengesellschaft · 1977
- Catalytic process for polyhydric alcohols and derivatives10US 3,944,588 AUnion Carbide Corporation · 1976