C10L 1/231
Nitro compounds
Official title: {nitro compounds; nitrates; nitrites (C10L1/221 takes precedence)}
C10L1/231 (Nitro compounds) appears on 312 US grants and 227 published applications in this corpus.
Search patents in C10L- Granted patents
- 312
- Published applications
- 227
- Assignees
- 137
- Inventors
- 550
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 6 | 0 |
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 9 | 0 |
| 1984 | 10 | 0 |
| 1985 | 8 | 0 |
| 1986 | 19 | 0 |
| 1987 | 6 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 7 | 0 |
| 1994 | 9 | 0 |
| 1995 | 12 | 0 |
| 1996 | 11 | 0 |
| 1997 | 12 | 0 |
| 1998 | 14 | 0 |
| 1999 | 19 | 0 |
| 2000 | 13 | 0 |
| 2001 | 7 | 2 |
| 2002 | 2 | 5 |
| 2003 | 6 | 17 |
| 2004 | 3 | 17 |
| 2005 | 2 | 13 |
| 2006 | 7 | 10 |
| 2007 | 8 | 7 |
| 2008 | 3 | 16 |
| 2009 | 6 | 10 |
| 2010 | 3 | 14 |
| 2011 | 9 | 11 |
| 2012 | 3 | 13 |
| 2013 | 8 | 7 |
| 2014 | 8 | 10 |
| 2015 | 0 | 9 |
| 2016 | 10 | 6 |
| 2017 | 2 | 9 |
| 2018 | 4 | 6 |
| 2019 | 6 | 10 |
| 2020 | 6 | 3 |
| 2021 | 5 | 3 |
| 2022 | 5 | 6 |
| 2023 | 3 | 6 |
| 2024 | 6 | 14 |
| 2025 | 6 | 1 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Nitrates of ethers of glycerol and ethanol as diesel cetane improvers and the production process of the same25 Aug 2026US 12,715,836 B2Petroleo Brasileiro S.A. - Petrobras
- Diesel fuel and fuel additive with a combustion catalyst28 Apr 2026US 12,612,571 B2CDTI Advanced Material, Inc.
- High-energy-density slurry fuel, preparation method, and application4 Nov 2025US 12,460,144 B2Hubei Institute of Aerospace Chemical Technology
- Use of organic nitrate and/or peroxide additives and method based thereon for deposit reduction in post diesel-combustion systems7 Oct 2025US 12,435,288 B2Innospec Limited
- Engine fuel based on a mixture of alcohol and water and containing a combustion improver additive2 Sep 2025US 12,404,468 B2Eurenco France SAS
- Fuel for a compression engine20 Aug 2026US 2026/0243206 A1Eurenco France SAS
- Fuel reduction composition for diesel internal combustion engines5 Feb 2026US 2026/0035632 A1Donghagreen Co., Ltd.
- Compositions for Engine Carbon Removal from Lubricated Components13 Feb 2025US 2025/0051681 A1ATS Chemical, LLC
- High-energy-density slurry fuel, preparation method, and application31 Oct 2024US 2024/0360374 A1Hubei Institute of Aerospace Chemical Technology
- Use of a composition of additives for reducing diesel vehicle emissions10 Oct 2024US 2024/0336857 A1Totalenergies Onetech
Most cited
By later US patents
- Diesel fuel additives and diesel fuels containing soluble platinum group metal compounds and use in diesel engines85US 4,892,562 AFuel Tech, Inc. · 1990
- Gasoline additives and gasoline containing soluble platinum group metal compounds and use in internal combustion engines79US 4,891,050 AFuel Tech, Inc. · 1990
- Detergents for hydrocarbon fuels68US 5,876,468 ALubrizol Adibis Holdings (UK) Limited · 1999
- Methods for reducing harmful emissions from a diesel engine61US 6,003,303 AClean Diesel Technologies, Inc. · 1999
- Anilines as markers for mineral oils59US 5,627,077 ABASF SE · 1997