C09K 15/12
Containing sulfur and oxygen
Official title: containing sulfur and oxygen
C09K15/12 (Containing sulfur and oxygen) appears on 110 US grants and 58 published applications in this corpus.
Search patents in C09K- Granted patents
- 110
- Published applications
- 58
- Assignees
- 61
- Inventors
- 220
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 7 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 11 | 0 |
| 1986 | 5 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 3 |
| 2007 | 1 | 3 |
| 2008 | 0 | 2 |
| 2009 | 3 | 0 |
| 2010 | 2 | 1 |
| 2011 | 2 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 4 |
| 2015 | 2 | 5 |
| 2016 | 2 | 6 |
| 2017 | 4 | 6 |
| 2018 | 1 | 3 |
| 2019 | 5 | 7 |
| 2020 | 3 | 4 |
| 2021 | 1 | 4 |
| 2022 | 5 | 1 |
| 2023 | 3 | 0 |
| 2024 | 3 | 3 |
| 2025 | 0 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Corrosion inhibitor composition for use in the oil and gas industry21 Jul 2026US 12,686,819 B2Imam Abdulrahman Bin Faisal University
- Methods and compositions for prevention of fouling in caustic towers24 Dec 2024US 12,173,243 B2Bl Technologies, Inc.
- Method of producing antioxidant with improved antioxidant ability and dispersion property for membrane-electrode assembly14 May 2024US 11,984,628 B2Hyundai Motor Company
- Composition19 Mar 2024US 11,932,746 B2Si Group, Inc.
- Stabilized DCD and/or alkyl thiophosphoric triamide solvent systems and use in agricultural applications24 Oct 2023US 11,795,119 B2Rhodia Operations
- Method of inhibiting corrosion of metal piping in an oil/gas well3 Sep 2026US 2026/0258301 A1Imam Abdulrahman Bin Faisal University
- Corrosion inhibitor having silica nanoparticles25 Jun 2026US 2026/0176531 A1ChampionX LLC
- Diquaternary compounds for corrosion inhibition and methods of use thereof6 Mar 2025US 2025/0075126 A1ChampionX LLC
- Corrosion inhibitor having silica nanoparticles20 Jun 2024US 2024/0199955 A1ChampionX LLC
- Corrosion inhibitor composition for use in the oil and gas industry4 Apr 2024US 2024/0110096 A1Imam Abdulrahman Bin Faisal University
Most cited
By later US patents
- Sulfurized phenolic antioxidant composition, method of preparing same, and petroleum products containing same42US 6,096,695 AEthyl Corporation · 2000
- Polymeric antioxidants40US 7,223,432 B2The United States of America as represented by the Secretary of the Army · 2007
- Polyalkylene glycol esters of hindered phenols substituted alkanoic acid38US 3,944,594 ACiba-Geigy Corporation · 1976
- Acid corrosion inhibitor35US 6,117,364 ANalco/Exxon Energy Chemicals, L. P. · 2000
- Compositions of antioxidants of reduced volatility30US 4,136,055 ARaychem Corporation · 1979