C23F 11/146
Containing a multiple nitrogen-to-carbon bond
Official title: {containing a multiple nitrogen-to-carbon bond}
C23F11/146 (Containing a multiple nitrogen-to-carbon bond) appears on 35 US grants and 28 published applications in this corpus.
Search patents in C23F- Granted patents
- 35
- Published applications
- 28
- Assignees
- 23
- Inventors
- 98
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 0 | 0 |
| 2005 | 2 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 1 | 3 |
| 2014 | 1 | 1 |
| 2015 | 2 | 2 |
| 2016 | 1 | 1 |
| 2017 | 1 | 2 |
| 2018 | 0 | 0 |
| 2019 | 2 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 1 |
| 2023 | 0 | 1 |
| 2024 | 3 | 4 |
| 2025 | 2 | 4 |
| 2026 | 3 | 2 |
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
- Etchant composition7 Apr 2026US 12,595,568 B2Kao Corporation
- Refinery crude distillation unit corrosion inhibitor10 Mar 2026US 12,570,907 B2Saudi Arabian Oil Company
- Corrosion inhibitor composition for wet sour crude23 Dec 2025US 12,503,636 B2King Fahd University of Petroleum and Minerals
- Ethoxylated fatty diamine as a corrosion inhibitor for pipelines and storage tanks6 May 2025US 12,291,785 B2Saudi Arabian Oil Company
- Etchant composition16 Jul 2026US 2026/0201569 A1Kao Corporation
- Refinery crude distillation unit corrosion inhibitor7 May 2026US 2026/0125604 A1Saudi Arabian Oil Company
- Ethoxylated fatty diamine as a corrosion inhibitor for pipelines and storage tanks14 Aug 2025US 2025/0257471 A1Aramco Services Company
- Surface enhancement of trivalent chromium conversion coatings and methods thereof24 Jul 2025US 2025/0236958 A1The Boeing Company
- Refinery crude distillation unit corrosion inhibitor5 Jun 2025US 2025/0179373 A1Saudi Arabian Oil Company
Most cited
By later US patents
- Suppression of the evolution of hydrogen sulfide gases from crude oil, petroleum residua and fuels90US 5,169,411 APetrolite Corporation · 1992
- Aqueous cleaning composition containing copper-specific corrosion inhibitor for cleaning inorganic residues on semiconductor substrate44US 6,896,826 B2Advanced Technology Materials, Inc. · 2005
- Aqueous fertilizer solutions containing dicyandiamide20US 4,234,332 ASKW Trostberg Aktiengesellschaft · 1980
- Corrosion inhibiting compositions and methods14US 6,180,057 B2Halliburton Energy Services.Inc. · 2001
- Moisture-scavenging iminoalcohol-oxazolidine mixtures10US 5,223,174 AAngus Chemical Company · 1993