C07D 501/12
Separation
Official title: Separation; Purification
C07D501/12 (Separation) appears on 31 US grants and 17 published applications in this corpus.
Search patents in C07D- Granted patents
- 31
- Published applications
- 17
- Assignees
- 22
- Inventors
- 79
- Latest grant
- 6 Jul 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 2 |
| 2012 | 1 | 0 |
| 2013 | 1 | 1 |
| 2014 | 3 | 3 |
| 2015 | 2 | 1 |
| 2016 | 0 | 0 |
| 2017 | 2 | 4 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Crystal of cephalosporin intermediate 7α-methoxy cephalothin and method for preparing same6 Jul 2021US 11,053,259 B2Qilu Antibiotics Pharmaceutical Co. Ltd.
- Crystalline form of cefamandole nafate compound, preparation and preparing method thereof5 Dec 2017US 9,834,567 B1Hainan Lingkang Pharmaceutical Co., Ltd
- Crystal form of Cefathiamidine compound and preparation method therefor2 May 2017US 9,637,502 B2Hainan Lingkang Pharmaceutical Co., Ltd
- Crystalline (6R,7R)-7-{2-(5-amino-[1,2,4] thiadiazol-3-yl)-2-[(Z)-trityloxyimino]-acetylamino}-3-[(R)-1′-tert-butoxycarbonyl-2-oxo-[1,3′]bipyrrolidinyl-(3E)-ylidenemethyl]-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid benzhydryl ester; its manufacture and use20 Oct 2015US 9,163,034 B2Basilea Pharmaceutica AG
- Process for purifying cefotiam hydrochloride28 Jul 2015US 9,090,631 B2Hainan Lingkang Pharmaceutical Co., Ltd
- Crystal of cephalosporin intermediate 7alpha-methoxy cephalothin and method for preparing same30 Apr 2020US 2020/0131197 A1Qilu Anti Pharmaceutical Co. Ltd.
- Novel industrial crystallization method of cefuroxime sodium and preparation thereof26 Apr 2018US 2018/0111949 A1Hainan Lingkang Pharmaceutical Co., Ltd
- Novel crystalline form of cefamandole nafate compound, preparation and preparing method thereof7 Dec 2017US 2017/0349609 A1Hainan Lingkang Pharmaceutical Co., Ltd
- Novel industrial crystallization method of cefuroxime sodium and preparation thereof8 Jun 2017US 2017/0158711 A1Hainan Lingkang Pharmaceutical Co., Ltd
- New crystalline form of cefamandole sodium compound, formulation and preparation method thereof23 Feb 2017US 2017/0050982 A1Hainan Lingkang Pharmaceutical Co., Ltd
Most cited
By later US patents
- Production of p-hydroxycephalexin16US 3,985,741 ABristol-Myers Company · 1976
- 3-Propenzl cephalosporin isomer separation process and derivative8US 4,727,070 ABristol-Myers Company · 1988
- 7-[(5'-N-methylthioacetamido)-adipoamido] cephalosporin derivatives6US 4,036,833 A1977
- Purification process for 7-aminocephalosporins5US 3,979,383 AEli Lilly and Company · 1976
- Cephalosporin purification process5US 4,028,355 ASmithKline Corporation · 1977