C09K 15/30
Containing heterocyclic ring with at least one nitrogen atom as ring member
Official title: containing heterocyclic ring with at least one nitrogen atom as ring member
C09K15/30 (Containing heterocyclic ring with at least one nitrogen atom as ring member) appears on 303 US grants and 223 published applications in this corpus.
Search patents in C09K- Granted patents
- 303
- Published applications
- 223
- Assignees
- 158
- Inventors
- 740
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 21 | 0 |
| 1977 | 14 | 0 |
| 1978 | 15 | 0 |
| 1979 | 6 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 6 | 0 |
| 1983 | 12 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 13 | 0 |
| 2000 | 8 | 0 |
| 2001 | 11 | 2 |
| 2002 | 11 | 11 |
| 2003 | 9 | 8 |
| 2004 | 8 | 5 |
| 2005 | 3 | 7 |
| 2006 | 4 | 3 |
| 2007 | 2 | 1 |
| 2008 | 1 | 2 |
| 2009 | 3 | 3 |
| 2010 | 0 | 5 |
| 2011 | 1 | 10 |
| 2012 | 3 | 10 |
| 2013 | 8 | 13 |
| 2014 | 5 | 14 |
| 2015 | 7 | 11 |
| 2016 | 13 | 15 |
| 2017 | 13 | 17 |
| 2018 | 9 | 9 |
| 2019 | 8 | 8 |
| 2020 | 9 | 9 |
| 2021 | 4 | 7 |
| 2022 | 6 | 15 |
| 2023 | 4 | 9 |
| 2024 | 9 | 16 |
| 2025 | 8 | 8 |
| 2026 | 6 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Aqueous formulation of oil-soluble corrosion inhibitor, and preparation method and regeneration method thereof22 Sep 2026US 12,742,119 B2PetroChina Company Limited
- Stabilizer composition for silyl-modified polymer sealants25 Aug 2026US 12,715,980 B2Clariant International Ltd.
- Corrosion inhibitor composition for use in the oil and gas industry21 Jul 2026US 12,686,819 B2Imam Abdulrahman Bin Faisal University
- Compound, CMP slurry composition including the same and polishing method using the same16 Jun 2026US 12,655,321 B2Samsung SDI.Co., Ltd.
- Zinc pigment for waterborne corrosion coatings21 Apr 2026US 12,606,744 B2Sun Chemical Corporation
- Method of inhibiting corrosion of metal piping in an oil/gas well3 Sep 2026US 2026/0258301 A1Imam Abdulrahman Bin Faisal University
- Method for manufacturing semiconductor substrate, method for etching substrate, and composition for surface modification27 Aug 2026US 2026/0250575 A1Tokyo Ohka Kogyo.Co., Ltd.
- Stabilizer composition for silyl-modified polymer sealants6 Aug 2026US 2026/0226257 A1Clariant International Ltd.
- Corrosion-inhibitor compounds, materials including such, and uses thereof9 Jul 2026US 2026/0193535 A1Saudi Arabian Oil Company
- Corrosion inhibitor having silica nanoparticles25 Jun 2026US 2026/0176531 A1ChampionX LLC
Most cited
By later US patents
- Synergistic mixture of low-molecular and high-molecular polyalkylpiperidines81US 4,692,486 ACiba-Geigy Corporation · 1987
- Corrosion inhibitor for cellulosic insulation70US 4,392,994 AThe Sherwin-Williams Company · 1983
- Light protection agents63US 4,127,586 ACiba-Geigy Corporation · 1978
- Branched chain dodecyl isomeric mixtures of 2-(5-dodecyl-2-hydroxy phenyl) benzotriazole as stabilizers for heat and light sensitive materials59US 3,983,132 AGAF Corporation · 1976
- Malonic acid ester/triazole mixed blocked HDI trimer/formaldehyde stabilization52US 6,559,264 B1Bayer Aktiengesellschaft · 2003