C10L 1/2283
Containing one or more carbon to nitrogen double bonds
Official title: {containing one or more carbon to nitrogen double bonds, e.g. guanidine, hydrazone, semi-carbazone, azomethine (C10L1/221, C10L1/226 take precedence)}
C10L1/2283 (Containing one or more carbon to nitrogen double bonds) appears on 85 US grants and 67 published applications in this corpus.
Search patents in C10L- Granted patents
- 85
- Published applications
- 67
- Assignees
- 55
- Inventors
- 190
- Latest grant
- 17 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 7 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 7 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 2 |
| 2002 | 0 | 0 |
| 2003 | 2 | 4 |
| 2004 | 0 | 8 |
| 2005 | 1 | 5 |
| 2006 | 0 | 1 |
| 2007 | 2 | 4 |
| 2008 | 1 | 5 |
| 2009 | 1 | 1 |
| 2010 | 0 | 4 |
| 2011 | 2 | 4 |
| 2012 | 2 | 4 |
| 2013 | 2 | 4 |
| 2014 | 4 | 6 |
| 2015 | 5 | 1 |
| 2016 | 4 | 2 |
| 2017 | 3 | 0 |
| 2018 | 3 | 2 |
| 2019 | 1 | 2 |
| 2020 | 1 | 2 |
| 2021 | 1 | 2 |
| 2022 | 1 | 2 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Methods of identifying a hydrocarbon fuel5 May 2022US 2022/0136968 A1Afton Chemical Corporation
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- Fuel composition based on paraffinic hydrocarbons16 Dec 2021US 2021/0388279 A1TotalEnergies Marketing Services
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
- Fuel Compositions35US 4,482,357 AEthyl Corporation · 1984
- Hydrocarbonaceous fuel compositions and additives therefor29US 5,944,858 AEthyl Petroleum Additives, Inc. · 1999
- .beta.-dithiophosphorylated porpionic acid in lubricants27US 5,922,657 ACiba Specialty Chemicals Corporation · 1999
- Automotive additive composition25US 7,553,801 B2Honeywell International Inc. · 2009