C07C 2527/053
Sulfates or other compounds comprising the anion 2-
Official title: Sulfates or other compounds comprising the anion (SnO3n+1)2-
C07C2527/053 (Sulfates or other compounds comprising the anion 2-) appears on 273 US grants and 151 published applications in this corpus.
Search patents in C07C- Granted patents
- 273
- Published applications
- 151
- Assignees
- 132
- Inventors
- 602
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 8 | 0 |
| 1978 | 9 | 0 |
| 1979 | 6 | 0 |
| 1980 | 3 | 0 |
| 1981 | 7 | 0 |
| 1982 | 4 | 0 |
| 1983 | 7 | 0 |
| 1984 | 8 | 0 |
| 1985 | 10 | 0 |
| 1986 | 6 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 7 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 4 | 0 |
| 1996 | 9 | 0 |
| 1997 | 6 | 0 |
| 1998 | 5 | 0 |
| 1999 | 5 | 0 |
| 2000 | 6 | 0 |
| 2001 | 2 | 1 |
| 2002 | 3 | 1 |
| 2003 | 5 | 4 |
| 2004 | 3 | 10 |
| 2005 | 4 | 7 |
| 2006 | 8 | 5 |
| 2007 | 3 | 12 |
| 2008 | 3 | 6 |
| 2009 | 4 | 9 |
| 2010 | 7 | 10 |
| 2011 | 5 | 5 |
| 2012 | 8 | 8 |
| 2013 | 4 | 3 |
| 2014 | 3 | 9 |
| 2015 | 12 | 13 |
| 2016 | 8 | 6 |
| 2017 | 1 | 3 |
| 2018 | 9 | 10 |
| 2019 | 5 | 6 |
| 2020 | 4 | 8 |
| 2021 | 8 | 6 |
| 2022 | 7 | 2 |
| 2023 | 3 | 5 |
| 2024 | 2 | 1 |
| 2025 | 2 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Removal of C3 lights from LPG feedstock to butane isomerization unit12 May 2026US 12,623,987 B2Sabic Global Technologies B.V.
- Processes for the preparation of alkylbenzenes4 Mar 2025US 12,240,792 B2Univeristy of Kansas
- C4 feedstock preprocessing for MTBE units and crackers4 Mar 2025US 12,240,793 B2Sabic Global Technologies B.V.
- Oxides of sulfur and their use as oxygen transfer reagents2 Jul 2024US 12,023,655 B2EcoCatalytic Inc.
- Alkylation reaction apparatus, reaction system, and liquid acid catalyzed alkylation reaction process6 Feb 2024US 11,890,589 B2China Petroleum & Chemical Corporation
- Method for producing olefin dimer, olefin dimerization catalyst19 Jun 2025US 2025/0197325 A1Mitsui Chemicals, Inc.
- Method for purifying 1-hexene29 Feb 2024US 2024/0067588 A1Sabic Global Technologies B.V.
- Processes for the preparation of alkylbenzenes12 Oct 2023US 2023/0322646 A1University of Kansas
- C4 feedstock preprocessing for mtbe units and crackers7 Sep 2023US 2023/0278940 A1Sabic Global Technologies B.V.
- Oxides of sulfur and their use as oxygen transfer reagents31 Aug 2023US 2023/0271170 A1EcoCatalytic Inc.
Most cited
By later US patents
- Methane production80US 3,958,957 AExxon Research & Engineering Co. · 1976
- Continuous process for the oxidative coupling of methane to C.sub.2+ hydrocarbons in the presence of catalysts72US 4,939,312 A1990
- Catalysts for carbon and coal gasification52US 4,558,027 AThe United States of America as represented by the United States Department of Energy · 1985
- Manufacture of high octane alkylate52US 6,768,035 B2Chevron U.S.A.Inc. · 2004
- Alkylation by controlling olefin ratios48US 6,194,625 B1Stratco, Inc. · 2001