C10M 133/58
Heterocyclic compounds
C10M133/58 (Heterocyclic compounds) appears on 130 US grants and 50 published applications in this corpus.
Search patents in C10M- Granted patents
- 130
- Published applications
- 50
- Assignees
- 34
- Inventors
- 232
- Latest grant
- 9 Feb 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 6 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 6 | 0 |
| 1983 | 6 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 7 | 0 |
| 1990 | 5 | 0 |
| 1991 | 2 | 0 |
| 1992 | 6 | 0 |
| 1993 | 0 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 6 | 0 |
| 1998 | 7 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 7 | 2 |
| 2002 | 3 | 0 |
| 2003 | 1 | 3 |
| 2004 | 0 | 1 |
| 2005 | 2 | 1 |
| 2006 | 1 | 2 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 3 |
| 2010 | 2 | 2 |
| 2011 | 1 | 2 |
| 2012 | 0 | 1 |
| 2013 | 2 | 2 |
| 2014 | 1 | 5 |
| 2015 | 1 | 2 |
| 2016 | 5 | 7 |
| 2017 | 1 | 5 |
| 2018 | 4 | 6 |
| 2019 | 6 | 2 |
| 2020 | 3 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Composition containing heterocyclic compounds and a method of lubricating an internal combustion engine9 Feb 2021US 10,913,915 B2The Lubrizol Corporation
- Quaternized ammonium salts of hydrocarbyl epoxides and use thereof as additives in fuels and lubricants23 Jun 2020US 10,689,326 B2BASF SE
- Quaternized nitrogen compounds and use thereof as additives in fuels and lubricants4 Feb 2020US 10,550,346 B2BASF SE
- Composition containing heterocyclic compounds and a method of lubricating an internal combustion engine4 Feb 2020US 10,550,348 B2The Lubrizol Corporation
- Method for preventing or reducing low speed pre-ignition while maintaining or improving cleanliness31 Dec 2019US 10,519,394 B2ExxonMobil Research and Engineering Company
- Hydraulic fluid compositions for agricultural machinery17 Sep 2026US 2026/0275227 A1Chevron Oronite Company LLC
- Lubricant composition for preventing corrosion and/or tribo-corrosion of metal parts in an engine29 Dec 2022US 2022/0411712 A1TotalEnergies Marketing Services
- Composition Containing Heterocyclic Compounds And A Method Of Lubricating An Internal Combustion Engine23 Apr 2020US 2020/0123463 A1The Lubrizol Corporation
- Quaternized ammonium salts of hydrocarbyl epoxides and use thereof as additives in fuels and lubricants21 Mar 2019US 2019/0084922 A1BASF SE
- Quaternized nitrogen compounds and use thereof as additives in fuels and lubricants31 Jan 2019US 2019/0031969 A1BASF SE
Most cited
By later US patents
- Polybutyl-and polyisobutylamines, their preparation, and fuel compositions containing these135US 4,832,702 ABASF SE · 1989
- Highly grafted, multi-functional olefin copolymer VI modifiers93US 6,107,257 AEthyl Corporation · 2000
- Borated oxazolines as varnish inhibiting dispersants in lubricating oils57US 4,116,876 AExxon Research & Engineering Co. · 1978
- Quaternary ammonium succinimide salt composition and lubricating oil containing same54US 4,326,973 ATexaco Inc. · 1982
- Quaternary ammonium succinimide salt composition and lubricating oil containing same54US 4,338,206 ATexaco Inc. · 1982