C07C 2527/02
Sulfur, selenium or tellurium
Official title: Sulfur, selenium or tellurium; Compounds thereof
C07C2527/02 (Sulfur, selenium or tellurium) appears on 475 US grants and 317 published applications in this corpus.
Search patents in C07C- Granted patents
- 475
- Published applications
- 317
- Assignees
- 196
- Inventors
- 985
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 18 | 0 |
| 1977 | 14 | 0 |
| 1978 | 19 | 0 |
| 1979 | 7 | 0 |
| 1980 | 5 | 0 |
| 1981 | 11 | 0 |
| 1982 | 5 | 0 |
| 1983 | 10 | 0 |
| 1984 | 12 | 0 |
| 1985 | 19 | 0 |
| 1986 | 6 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 6 | 0 |
| 1991 | 5 | 0 |
| 1992 | 8 | 0 |
| 1993 | 8 | 0 |
| 1994 | 10 | 0 |
| 1995 | 4 | 0 |
| 1996 | 10 | 0 |
| 1997 | 8 | 0 |
| 1998 | 10 | 0 |
| 1999 | 6 | 0 |
| 2000 | 9 | 0 |
| 2001 | 3 | 1 |
| 2002 | 4 | 2 |
| 2003 | 9 | 10 |
| 2004 | 5 | 16 |
| 2005 | 5 | 11 |
| 2006 | 9 | 7 |
| 2007 | 5 | 12 |
| 2008 | 6 | 6 |
| 2009 | 4 | 9 |
| 2010 | 7 | 17 |
| 2011 | 7 | 11 |
| 2012 | 11 | 16 |
| 2013 | 8 | 6 |
| 2014 | 9 | 16 |
| 2015 | 19 | 22 |
| 2016 | 14 | 16 |
| 2017 | 6 | 13 |
| 2018 | 19 | 18 |
| 2019 | 14 | 23 |
| 2020 | 16 | 23 |
| 2021 | 21 | 15 |
| 2022 | 16 | 13 |
| 2023 | 12 | 14 |
| 2024 | 10 | 14 |
| 2025 | 10 | 5 |
| 2026 | 5 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Supported metal catalyst with synergistic sites, a preparation method therefor and an application thereof28 Jul 2026US 12,691,442 B2Beijing University of Chemical Technology
- Feed purification in ethane ODH process16 Jun 2026US 12,655,079 B2NOVA Chemicals (International) S.A.
- Oxygen removal from an ethane ODH product stream using ethanol2 Jun 2026US 12,643,841 B2NOVA Chemicals (International) S.A.
- Removal of C3 lights from LPG feedstock to butane isomerization unit12 May 2026US 12,623,987 B2Sabic Global Technologies B.V.
- Process and system for preparing a target compound3 Mar 2026US 12,565,460 B2Clariant International Ltd.
- Improved method for dehydrogenating hydrocarbons20 Aug 2026US 2026/0242310 A1Arkema France
- Catalytic conversion of carbon dioxide23 Oct 2025US 2025/0326705 A1NOVA Chemicals (International) S.A.
- Making catalysts for oxidative dehydrogenation11 Sep 2025US 2025/0281913 A1NOVA Chemicals (International) S.A.
- Process for the oxidative dehydrogenation of alkanes19 Jun 2025US 2025/0196089 A1Sabic Global Technologies B.V.
- Method for producing olefin dimer, olefin dimerization catalyst19 Jun 2025US 2025/0197325 A1Mitsui Chemicals, Inc.
Most cited
By later US patents
- Solid state proton and electron mediating membrane and use in catalytic membrane reactors99US 5,821,185 AEltron Research, Inc. · 1998
- Methane production80US 3,958,957 AExxon Research & Engineering Co. · 1976
- Production of improved molybdenum disulfide catalysts73US 4,243,553 AUnion Carbide Corporation · 1981
- Continuous process for the oxidative coupling of methane to C.sub.2+ hydrocarbons in the presence of catalysts72US 4,939,312 A1990
- Molybdenum disulfide catalyst and the preparation thereof66US 4,243,554 AUnion Carbide Corporation · 1981