C07C 409/44
With sulfur atoms directly bound to the —o—o— groups
Official title: with sulfur atoms directly bound to the —O—O— groups, e.g. persulfonic acids
C07C409/44 (With sulfur atoms directly bound to the —o—o— groups) appears on 11 US grants and 3 published applications in this corpus.
Search patents in C07C- Granted patents
- 11
- Published applications
- 3
- Assignees
- 3
- Inventors
- 7
- Latest grant
- 23 Nov 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 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 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 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 | 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 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 2 |
| 2020 | 0 | 0 |
| 2021 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Initiator for preparing alkanesulfonic acids from alkane and oleum23 Nov 2021US 11,180,448 B2BASF SE
- Solvent-free alkane sulfonation30 Mar 2021US 10,961,182 B2BASF SE
- Initiator for preparing alkanesulfonic acids from alkane and oleum25 Jun 2019US 10,329,251 B2Grillo-Werke AG
- Polymer from peroxy compounds containing acylating groups8 Dec 1981US 4,304,882 APennwalt Corporation
- Polymerization of vinyl monomers employing liquid acyl sulfonyl peroxide formulations derived from solid acyl alkylsulfonyl peroxides4 Jul 1978US 4,098,981 APennwalt Corporation
Most cited
By later US patents
- Azo free radical initiators containing ultraviolet light stabilizing groups24US 3,956,269 APennwalt Corporation · 1976
- Diacyl peroxy compounds15US 3,991,109 APennwalt Corporation · 1976
- Peroxy compounds containing an acid halide group11US 3,952,041 APennwalt Corporation · 1976
- Azo-peroxide free radical initiators containing ultraviolet light stabilizing groups10US 4,045,427 APennwalt Corporation · 1977
- Polymer from peroxy compounds containing acylating groups9US 4,304,882 APennwalt Corporation · 1981