C07C 319/16
By addition of hydrogen sulfide or its salts to unsaturated compounds
Official title: by addition of hydrogen sulfide or its salts to unsaturated compounds
C07C319/16 (By addition of hydrogen sulfide or its salts to unsaturated compounds) appears on 36 US grants and 25 published applications in this corpus.
Search patents in C07C- Granted patents
- 36
- Published applications
- 25
- Assignees
- 25
- Inventors
- 87
- Latest grant
- 18 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 2 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 0 | 1 |
| 2014 | 3 | 3 |
| 2015 | 0 | 1 |
| 2016 | 3 | 3 |
| 2017 | 2 | 5 |
| 2018 | 5 | 2 |
| 2019 | 2 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Process for the co-production of methyl mercaptan and of dimethyl disulfide from carbon oxides18 Feb 2025US 12,227,468 B2Arkema France
- Dialkyl sulfide, method for producing dialkyl sulfide, extreme-pressure additive, and lubricating fluid composition19 Jan 2021US 10,894,767 B2DIC Corporation
- Flow reactor vessels and reactor systems19 May 2020US 10,654,022 B2Chevron Phillips Chemical Company LP
- Mixed branched eicosyl polysulfide compositions and methods of making same21 May 2019US 10,294,200 B2Chevron Phillips Chemical Company LP
- Flow reactor vessels and reactor systems26 Mar 2019US 10,239,040 B2Chevron Phillips Chemical Company LP
- Sequential and independent synthesis of mercaptans and asymmetrical sulfides in a single reactor15 Feb 2024US 2024/0051918 A1Chevron Phillips Chemical Company LP
- Process for the co-production of methyl mercaptan and of dimethyl disulfide from carbon oxides17 Nov 2022US 2022/0363630 A1Arkema France
- Dialkyl sulfide, method for producing dialkyl sulfide, extreme-pressure additive, and lubricating fluid composition6 Aug 2020US 2020/0247746 A1DIC Corporation
- Flow Reactor Vessels and Reactor Systems6 Jun 2019US 2019/0168184 A1Chevron Phillips Chemical Company LP
- Mixed Branched Eicosyl Polysulfide Compositions and Methods of Making Same25 Oct 2018US 2018/0305306 A1Chevron Phillips Chemical Company LP
Most cited
By later US patents
- Method for conducting organic reactions using guanidinium salt as phase transfer catalyst32US 5,132,423 AGeneral Electric Company · 1992
- Multi-purpose catalytic distillation column and eterification process using same32US 5,321,163 AChemical Research & Licensing Company · 1994
- Multi-purpose catalytic distillation column20US 5,431,888 AChemical Research & Licensing Company · 1995
- Process for the manufacture of dialkyl disulfides and polysulfides17US 4,937,385 APennwalt Corporation · 1990
- Process for the utilization of refinery C4 streams9US 6,919,016 B2Catalytic Distillation Technologies · 2005