C10L 1/22
Containing nitrogen
Official title: containing nitrogen
C10L1/22 (Containing nitrogen) appears on 2,750 US grants and 1,658 published applications in this corpus.
Search patents in C10L- Granted patents
- 2,750
- Published applications
- 1,658
- Assignees
- 553
- Inventors
- 3,249
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 47 | 0 |
| 1977 | 53 | 0 |
| 1978 | 59 | 0 |
| 1979 | 47 | 0 |
| 1980 | 66 | 0 |
| 1981 | 57 | 0 |
| 1982 | 43 | 0 |
| 1983 | 52 | 0 |
| 1984 | 42 | 0 |
| 1985 | 58 | 0 |
| 1986 | 62 | 0 |
| 1987 | 57 | 0 |
| 1988 | 44 | 0 |
| 1989 | 68 | 0 |
| 1990 | 56 | 0 |
| 1991 | 69 | 0 |
| 1992 | 75 | 0 |
| 1993 | 87 | 0 |
| 1994 | 93 | 0 |
| 1995 | 75 | 0 |
| 1996 | 90 | 0 |
| 1997 | 79 | 0 |
| 1998 | 105 | 0 |
| 1999 | 81 | 0 |
| 2000 | 78 | 0 |
| 2001 | 75 | 16 |
| 2002 | 36 | 31 |
| 2003 | 45 | 77 |
| 2004 | 27 | 93 |
| 2005 | 21 | 93 |
| 2006 | 17 | 63 |
| 2007 | 28 | 73 |
| 2008 | 33 | 86 |
| 2009 | 31 | 68 |
| 2010 | 41 | 89 |
| 2011 | 49 | 72 |
| 2012 | 38 | 76 |
| 2013 | 50 | 85 |
| 2014 | 72 | 76 |
| 2015 | 54 | 76 |
| 2016 | 64 | 55 |
| 2017 | 47 | 64 |
| 2018 | 48 | 51 |
| 2019 | 53 | 65 |
| 2020 | 47 | 68 |
| 2021 | 47 | 55 |
| 2022 | 43 | 53 |
| 2023 | 35 | 42 |
| 2024 | 50 | 63 |
| 2025 | 34 | 37 |
| 2026 | 22 | 31 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C10L 1/234Macromolecular compounds1,512
- C10L 1/222Containing at least one carbon-to-nitrogen single bond1,373
- C10L 1/221Compounds of uncertain formula592
- C10L 1/232Containing nitrogen in a heterocyclic ring578
- C10L 1/23Containing at least one nitrogen-to-oxygen bond358
- C10L 1/228Containing at least one carbon-to-nitrogen double bond137
- C10L 1/226Containing at least one nitrogen-to-nitrogen bond110
Recent patents
- Mixtures for improving the stability of additive packages22 Sep 2026US 12,742,128 B2BASF SE
- 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
- Fuel compositions comprising a fuel oil obtained from the distillation of a pyrolysis oil25 Aug 2026US 12,716,040 B2Innospec Fuel Specialties LLC
- Ammonia-hydrocarbon fuel compositions, method of use, and systems thereof11 Aug 2026US 12,703,830 B2Mighty Pipeline, Inc.
- Compositions for mitigating low speed pre-ignition events28 Jul 2026US 12,692,450 B2Chevron Oronite Company LLC
- Antidegradant bis(dihydro and tetrahydroquinoline) compounds and uses thereof8 Oct 2026US 2026/0308127 A1Flexsys IP Holdings, LLC
- Hydrogen sulphide and mercaptan scavenging additive concentrate comprising an oxazolidine compound and an alkoxylated amine24 Sep 2026US 2026/0284585 A1TotalEnergies One Tech
- Fuel additive compositions and methods for controlling deposits24 Sep 2026US 2026/0286239 A1Chevron Oronite Company LLC
- Use and method24 Sep 2026US 2026/0286241 A1Innospec Limited
- Fuel compositions comprising an additive, and methods and uses relating thereto17 Sep 2026US 2026/0275214 A1Innosec Limited
Most cited
By later US patents
- Novel carboxylic acid acylating agents, derivatives thereof, concentrate and lubricant compositions containing the same, and processes for their preparation764US 4,234,435 AThe Lubrizol Corporation · 1980
- Modified succinimides173US 4,612,132 AChevron Research Company · 1986
- Method of treating sour gas and liquid hydrocarbon160US 5,674,377 ANalco/Exxon Energy Chemicals, L. P. · 1997
- Gels of nonpolar liquids with N-acyl amino acids and derivatives thereof as gelling agents149US 3,969,087 AAjinomoto Co., Inc. · 1976
- Combination of ethylene polymer, polymer having alkyl side chains, and nitrogen containing compound to improve cold flow properties of distillate fuel oils135US 4,211,534 AExxon Research & Engineering Co. · 1980