C07C 319/02
Preparation of thiols, sulfides, hydropolysulfides or polysulfides: of thiols
Official title: of thiols
C07C319/02 (Preparation of thiols, sulfides, hydropolysulfides or polysulfides: of thiols) appears on 434 US grants and 394 published applications in this corpus.
Search patents in C07C- Granted patents
- 434
- Published applications
- 394
- Assignees
- 243
- Inventors
- 1,074
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 5 | 0 |
| 1978 | 6 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 9 | 0 |
| 1991 | 7 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 6 | 0 |
| 1995 | 7 | 0 |
| 1996 | 8 | 0 |
| 1997 | 5 | 0 |
| 1998 | 16 | 0 |
| 1999 | 13 | 0 |
| 2000 | 7 | 0 |
| 2001 | 5 | 0 |
| 2002 | 10 | 3 |
| 2003 | 3 | 11 |
| 2004 | 3 | 11 |
| 2005 | 9 | 10 |
| 2006 | 6 | 20 |
| 2007 | 11 | 14 |
| 2008 | 7 | 15 |
| 2009 | 9 | 14 |
| 2010 | 9 | 13 |
| 2011 | 10 | 19 |
| 2012 | 7 | 9 |
| 2013 | 11 | 21 |
| 2014 | 19 | 22 |
| 2015 | 24 | 22 |
| 2016 | 24 | 26 |
| 2017 | 18 | 22 |
| 2018 | 16 | 23 |
| 2019 | 20 | 17 |
| 2020 | 23 | 24 |
| 2021 | 14 | 17 |
| 2022 | 11 | 18 |
| 2023 | 10 | 11 |
| 2024 | 13 | 17 |
| 2025 | 9 | 6 |
| 2026 | 4 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C07C 319/06From sulfides, hydropolysulfides or polysulfides117
- C07C 319/12By reactions not involving the formation of mercapto groups114
- C07C 319/04By addition of hydrogen sulfide or its salts to unsaturated compounds63
- C07C 319/08By replacement of hydroxy groups or etherified or esterified hydroxy groups53
Recent patents
- Process for the preparation of cysteamine bitartrate and product so obtained29 Sep 2026US 12,747,204 B2Recordati Industria Chimica e Farmaceutica S.p.A.
- Method for preparation of 1-(2-((2,4-dimethylphenyl)thio)phenyl) piperazine and its salts29 Sep 2026US 12,747,220 B2R L Finechem Private Limited
- 3-substituted phenylamidine compounds, preparation and use thereof10 Feb 2026US 12,545,639 B2Pi Industries Ltd.
- Method of producing thiourethane resin raw material and application thereof, method of producing polythiol composition and application thereof, and polythiol composition27 Jan 2026US 12,534,431 B2Mitsui Chemicals, Inc.
- Method of producing polyamine compound and application thereof16 Dec 2025US 12,497,357 B2Mitsui Chemicals, Inc.
- Polythiol compositions and their process of preparation from terpenes or from terpene derivatives17 Sep 2026US 2026/0274792 A1Arkema France
- Polythiol, polymerizable composition for optical materials, optical material, and method for producing same10 Sep 2026US 2026/0265439 A1Hoya Lens Thailand Ltd.
- Polythiol compositions and their process of preparation13 Aug 2026US 2026/0234103 A1Arkema France
- Method for preparing l-cysteine hydrochloride hydrate crystals of which particle size is controlled6 Aug 2026US 2026/0226002 A1Cj Cheiljedang Corporation
- Method of producing thiourethane resin raw material and application thereof, method of producing polythiol composition and application thereof, and polythiol composition23 Apr 2026US 2026/0109667 A1Mitsui Chemicals, Inc.
Most cited
By later US patents
- Process of making prostacyclin compounds with linker thiol and pegylated forms35US 9,102,660 B2United Therapeutics Corporation · 2015
- Method for preparation of polyethylene glycol aldehyde derivatives31US 6,465,694 B1University of Utah Research Foundation · 2002
- Method of treating inflammation, allergy, asthma and proliferative skin disease using heterocyclic amides30US 4,959,364 AG. D. Searle & Co. · 1990
- Dual-acting antihypertensive agents29US 7,777,077 B2Theravance, Inc. · 2010
- Process for the preparation of 1,3-dioxane derivatives useful in the preparation of HMG-COA reductase inhibitors27US 5,278,313 AE. R. Squibb & Sons, Inc. · 1994