C07D 211/02
Preparation by ring-closure or hydrogenation
C07D211/02 (Preparation by ring-closure or hydrogenation) appears on 63 US grants and 50 published applications in this corpus.
Search patents in C07D- Granted patents
- 63
- Published applications
- 50
- Assignees
- 53
- Inventors
- 202
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 0 |
| 2003 | 2 | 1 |
| 2004 | 0 | 2 |
| 2005 | 1 | 0 |
| 2006 | 1 | 1 |
| 2007 | 1 | 1 |
| 2008 | 1 | 2 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 2 |
| 2015 | 2 | 1 |
| 2016 | 2 | 8 |
| 2017 | 5 | 5 |
| 2018 | 3 | 5 |
| 2019 | 4 | 5 |
| 2020 | 8 | 3 |
| 2021 | 4 | 1 |
| 2022 | 0 | 3 |
| 2023 | 0 | 1 |
| 2024 | 0 | 3 |
| 2025 | 3 | 1 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Acid addition salts of (s)-3-(2,5-dimethoxy-4-(trifluoromethyl)phenyl)piperidine and (s)-3-(2-methoxy-5-(methylthio)-4-(trifluoromethyl)phenyl)piperidine, specific polymorphs thereof and methods for their manufacture1 Sep 2026US 12,723,024 B2Lophora ApS
- Process for preparing N,N′-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexane-1,6-diamine25 Aug 2026US 12,715,845 B2BASF SE
- Modified zeolite catalyst compositions and methods of use23 Jun 2026US 12,661,643 B2W. R. Grace & Co.-Conn.
- Processes and intermediates for preparing a Btk inhibitor4 Nov 2025US 12,459,948 B2Janssen Pharmaceutica NV
- Method for preparation of trans-n-benzyloxycarbonyl-(3-hydroxy-2-piperidinyl)-2-propanone as intermediate of halofuginone9 Sep 2025US 12,410,131 B2ChengDa Pharmaceuticals Co., Ltd.
- Modified Zeolite Catalyst Compositions and Methods of Use2 Jul 2026US 2026/0183760 A1W. R. Grace & Co.-Conn.
- Processes and intermediates for the preparation of pridopidine7 Aug 2025US 2025/0250233 A1Prilenia Neurotherapeutics Ltd.
- Acid addition salts of (s)-3-(2,5-dimethoxy-4-(trifluoromethyl)phenyl)piperidine and (s)-3-(2-methoxy-5-(methylthio)-4-(trifluoromethyl)phenyl)piperidine, specific polymorphs thereof and methods for their manufacture27 Jun 2024US 2024/0208903 A1Lophora ApS
- Process for preparing n,n'-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexane-1,6-diamine6 Jun 2024US 2024/0182417 A1BASF SE
- Modified zeolite catalyst compositions and methods of use23 May 2024US 2024/0165600 A1W. R. Grace & Co.-Conn.
Most cited
By later US patents
- Two-stage process for making trimethyl pyridine17US 4,701,530 AThe Dow Chemical Company · 1987
- Preparation of substituted piperidin-4-ones16US 6,538,136 B1Eli Lilly and Company · 2003
- Enantioselective syntheses of heteroyohimbine natural product intermediates11US 10,323,039 B2Northwestern University · 2019
- Certain 1,4-dihydro-3-sulfinyl or sulfonyl-pyridines10US 4,017,629 ACiba-Geigy Corporation · 1977
- Hydroxyaryl-tetramethyl-piperidines10US 4,038,280 ACiba-Geigy Corporation · 1977