C07C 5/2781
Acids of sulfur
Official title: {Acids of sulfur; Salts thereof; Sulfur oxides}
C07C5/2781 (Acids of sulfur) appears on 4 US grants and 2 published applications in this corpus.
Search patents in C07C- Granted patents
- 4
- Published applications
- 2
- Assignees
- 6
- Inventors
- 15
- Latest grant
- 15 Jul 1997
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 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 | 1 |
| 2014 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Liquid phase isomerization of alkanes15 Jul 1997US 5,648,590 ASun Company, Inc. (R&M)
- Sulfated catalyst for skeletal isomerization of olefins26 Jan 1993US 5,182,247 ATexaco Inc.
- Liquid phase isomerization of alkanes28 May 1991US 5,019,671 ASun Refining and Marketing Company
- Isomerization of butane21 Mar 1989US 4,814,544 AEl Paso Products Company
Most cited
By later US patents
- Sulfated catalyst for skeletal isomerization of olefins21US 5,182,247 ATexaco Inc. · 1993
- Liquid phase isomerization of alkanes14US 5,019,671 ASun Refining and Marketing Company · 1991
- Isomerization of butane4US 4,814,544 AEl Paso Products Company · 1989
- Liquid phase isomerization of alkanes4US 5,648,590 ASun Company, Inc. (R&M) · 1997