C07C 45/47
Using phosgene
Official title: using phosgene
C07C45/47 (Using phosgene) appears on 11 US grants and 1 published applications in this corpus.
Search patents in C07C- Granted patents
- 11
- Published applications
- 1
- Assignees
- 8
- Inventors
- 22
- Latest grant
- 1 Jun 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 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 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Polybrominated diphenyl-based flame retardant compounds1 Jun 2021US 11,021,425 B2International Business Machines Corporation
- Photoactive compounds for use with narrow wavelength band ultraviolet (UV) curing systems31 Oct 2000US 6,140,385 AFirst Chemical Corporation
- Substituted 2,6-dimethylbicyclo[3,3,1]non-6-enes, processes for preparing same and organoleptic uses thereof22 Nov 1994US 5,367,092 AInternational Flavors & Fragrances Inc.
- Substituted 2,6-dimethylbicyclo[3,3,1]non-6-enes, processes for preparing same and organoleptic uses thereof13 Sep 1994US 5,346,884 AInternational Flavors & Fragrances Inc.
- Preparation of acylaromatic compounds13 Sep 1994US 5,347,047 ABASF SE
Most cited
By later US patents
- Friedel-crafts preparation of aromatic ketones11US 4,814,508 ARaychem Corporation · 1989
- Preparation of aryl carbonyl compounds7US 4,898,983 ARaychem Corporation · 1990
- Friedel-crafts preparation of aromatic ketones with an inoganic salt controlling agent5US 5,068,447 ARaychem Corporation · 1991
- Process for the preparation of benzophenones4US 4,618,726 ARhone-Poulenc Specialites Chimiques · 1986
- Preparation of arylene oligomers4US 4,841,011 ARaychem Corporation · 1989