C09K 15/28
Containing nitrogen, oxygen and sulfur
Official title: containing nitrogen, oxygen and sulfur
C09K15/28 (Containing nitrogen, oxygen and sulfur) appears on 106 US grants and 100 published applications in this corpus.
Search patents in C09K- Granted patents
- 106
- Published applications
- 100
- Assignees
- 59
- Inventors
- 197
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 7 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 3 |
| 2005 | 0 | 0 |
| 2006 | 0 | 3 |
| 2007 | 0 | 1 |
| 2008 | 1 | 2 |
| 2009 | 1 | 1 |
| 2010 | 0 | 1 |
| 2011 | 1 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 11 |
| 2014 | 0 | 8 |
| 2015 | 8 | 6 |
| 2016 | 8 | 9 |
| 2017 | 9 | 10 |
| 2018 | 2 | 5 |
| 2019 | 9 | 9 |
| 2020 | 5 | 9 |
| 2021 | 8 | 5 |
| 2022 | 5 | 6 |
| 2023 | 4 | 1 |
| 2024 | 5 | 4 |
| 2025 | 4 | 1 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Liquid formulations of urease inhibitors for fertilizers4 Aug 2026US 12,698,243 B2Soilgenic Technologies, LLC
- Corrosion inhibitor composition for use in the oil and gas industry21 Jul 2026US 12,686,819 B2Imam Abdulrahman Bin Faisal University
- Amphoteric compounds6 Jan 2026US 12,516,019 B2Eastman Chemical Company
- Concentrated liquid compositions of urease inhibitors for nitrogen sources16 Dec 2025US 12,497,344 B2Soilgenic Technologies, LLC
- Liquid formulations of urease inhibitors for fertilizers4 Nov 2025US 12,459,873 B2Soilgenic Technologies, LLC
- Method of inhibiting corrosion of metal piping in an oil/gas well3 Sep 2026US 2026/0258301 A1Imam Abdulrahman Bin Faisal University
- Concentrated Liquid Compositions of Urease Inhibitors for Nitrogen Sources12 Mar 2026US 2026/0070856 A1Soilgenic Technologies, LLC
- Increased longevity of the nitrogen content of soil through improved liquid delivery formulations of nitrification inhibitors designed for urea and manure based fertilizers9 Jan 2025US 2025/0011255 A1Soilgenic Technologies, LLC
- Compositions and methods comprising nitrification inhibitors containing a mixture of protic and aprotic solvent systems10 Oct 2024US 2024/0336539 A1Soilgenic Technologies, LLC
- Improved liquid formulations of urease inhibitors for fertilizers29 Aug 2024US 2024/0286968 A1Soilgenic Technologies, LLC
Most cited
By later US patents
- Discoloration prevention in pyrithione-containing coating compositions43US 5,562,995 AOlin Corporation · 1996
- Discoloration prevention in pyrithione-containing coating compositions43US 5,939,203 AArch Chemicals, Inc. · 1999
- Discoloration prevention in pyrithione-containing coating compositions42US 5,883,154 AOlin Corporation · 1999
- Non-migratory sulfonyl azide antioxidants29US 4,031,068 AUniroyal, Inc. · 1977
- Antioxidant additive compositions and lubricating compositions containing the same19US 6,806,241 B2R. T. Vanderbilt Company, Inc. · 2004