C10M 133/38
Heterocyclic nitrogen compounds
C10M133/38 (Heterocyclic nitrogen compounds) appears on 760 US grants and 439 published applications in this corpus.
Search patents in C10M- Granted patents
- 760
- Published applications
- 439
- Assignees
- 256
- Inventors
- 1,411
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 10 | 0 |
| 1979 | 19 | 0 |
| 1980 | 15 | 0 |
| 1981 | 18 | 0 |
| 1982 | 10 | 0 |
| 1983 | 22 | 0 |
| 1984 | 12 | 0 |
| 1985 | 18 | 0 |
| 1986 | 9 | 0 |
| 1987 | 8 | 0 |
| 1988 | 12 | 0 |
| 1989 | 21 | 0 |
| 1990 | 14 | 0 |
| 1991 | 20 | 0 |
| 1992 | 23 | 0 |
| 1993 | 17 | 0 |
| 1994 | 38 | 0 |
| 1995 | 18 | 0 |
| 1996 | 37 | 0 |
| 1997 | 20 | 0 |
| 1998 | 38 | 0 |
| 1999 | 17 | 0 |
| 2000 | 16 | 0 |
| 2001 | 20 | 2 |
| 2002 | 13 | 8 |
| 2003 | 13 | 8 |
| 2004 | 7 | 6 |
| 2005 | 3 | 5 |
| 2006 | 1 | 5 |
| 2007 | 0 | 7 |
| 2008 | 2 | 11 |
| 2009 | 3 | 11 |
| 2010 | 6 | 15 |
| 2011 | 5 | 12 |
| 2012 | 9 | 17 |
| 2013 | 11 | 20 |
| 2014 | 16 | 39 |
| 2015 | 12 | 27 |
| 2016 | 25 | 37 |
| 2017 | 29 | 37 |
| 2018 | 16 | 32 |
| 2019 | 20 | 27 |
| 2020 | 22 | 20 |
| 2021 | 18 | 17 |
| 2022 | 17 | 20 |
| 2023 | 17 | 14 |
| 2024 | 12 | 15 |
| 2025 | 12 | 17 |
| 2026 | 11 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Compound, corrosion inhibitor, and lubricant composition15 Sep 2026US 12,735,393 B2Idemitsu Kosan Co., Ltd.
- Multipurpose oxypyridinones and their functional use-37 Jul 2026US 12,674,113 B2Infineum International Limited
- Hydrolytically stable hydraulic lubricant26 May 2026US 12,637,632 B2Afton Chemical Corporation
- Multipurpose oxypyridinones and their functional use—121 Apr 2026US 12,606,765 B2Infineum International Limited
- Multipurpose oxypyridinones and their functional use-421 Apr 2026US 12,606,766 B2Infineum International Limited
- Antidegradant bis(dihydro and tetrahydroquinoline) compounds and uses thereof8 Oct 2026US 2026/0308127 A1Flexsys IP Holdings, LLC
- Polyamide resin composition8 Oct 2026US 2026/0308472 A1Ube Corporation
- Gear oil composition10 Sep 2026US 2026/0265634 A1Eneos Corporation
- Grease composition10 Sep 2026US 2026/0265636 A1Adeka Corporation
- Lubricant Compositions27 Aug 2026US 2026/0250593 A1The Lubrizol Corporation
Most cited
By later US patents
- Thread sealant and anti-seize compound130US 5,093,015 AJet-Lube, Inc. · 1992
- High performance lubricating oils102US 6,180,575 B2Mobil Oil Corporation · 2001
- Lubricating oil for refrigerator75US 5,185,092 ATonen Corporation · 1993
- High oleic polyol esters, compositions and lubricants, functional fluids and greases containing the same73US 5,773,391 AThe Lubrizol Corporation · 1998
- Alkyl ether amine conveyor lubricants containing corrosion inhibitors64US 5,723,418 AEcolab Inc. · 1998