C07C 319/04
By addition of hydrogen sulfide or its salts to unsaturated compounds
Official title: by addition of hydrogen sulfide or its salts to unsaturated compounds
C07C319/04 (By addition of hydrogen sulfide or its salts to unsaturated compounds) appears on 63 US grants and 46 published applications in this corpus.
Search patents in C07C- Granted patents
- 63
- Published applications
- 46
- Assignees
- 30
- Inventors
- 103
- Latest grant
- 16 Jul 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 4 |
| 2007 | 2 | 1 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 0 | 4 |
| 2012 | 1 | 2 |
| 2013 | 1 | 2 |
| 2014 | 2 | 4 |
| 2015 | 3 | 3 |
| 2016 | 7 | 1 |
| 2017 | 3 | 7 |
| 2018 | 3 | 4 |
| 2019 | 6 | 2 |
| 2020 | 2 | 2 |
| 2021 | 1 | 1 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
| 2024 | 3 | 1 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Continuous photochemical production of high purity linear mercaptan and sulfide compositions16 Jul 2024US 12,037,310 B2Arkema Inc.
- Method for preparing polythiols4 Jun 2024US 11,999,682 B2Arkema France
- Sulfide-based compounds and uses thereof14 May 2024US 11,981,625 B2Ecolab USA Inc.
- Methods of making mercaptan compounds using nickel-molybdenum catalysts26 Dec 2023US 11,851,397 B2Chevron Phillips Chemical Company LP
- Continuous photochemical production of high purity linear mercaptan and sulfide compositions2 Nov 2021US 11,161,810 B1Arkema Inc.
- Process for the Production of Specialty Mercaptans From the C4 Oligomerization Product9 Apr 2026US 2026/0098009 A1IndianOil Corporation Limited
- Sulfide-based compounds and uses thereof15 Aug 2024US 2024/0270687 A1Ecolab USA Inc.
- Methods of Making Mercaptan Compounds Using Nickel-Molybdenum Catalysts7 Apr 2022US 2022/0106266 A1Chevron Phillips Chemical Company LP
- Continuous photochemical production of high purity linear mercaptan and sulfide compositions16 Dec 2021US 2021/0387947 A1Arkema Inc.
- Sulfide-based compounds and uses thereof9 Apr 2020US 2020/0109112 A1Ecolab USA Inc.
Most cited
By later US patents
- Synthesis of therapeutic and diagnostic drugs centered on regioselective and stereoselective ring opening of aziridinium ions22US 9,446,995 B2Illinois Institute of Technology · 2016
- Process for preparing mercaptans14US 4,140,604 APennwalt Corporation · 1979
- Manufacture of tertiary mercaptans using zeolite catalysts13US 4,102,931 APennwalt Corporation · 1978
- Process for preparation of thioethers13US 4,231,956 AExxon Research & Engineering Co. · 1980
- Production of mercapto compounds11US 5,008,432 APhillips Petroleum Company · 1991