C10M 2215/30
Heterocyclic compounds
C10M2215/30 (Heterocyclic compounds) appears on 1,351 US grants and 210 published applications in this corpus.
Search patents in C10M- Granted patents
- 1,351
- Published applications
- 210
- Assignees
- 289
- Inventors
- 1,772
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 62 | 0 |
| 1977 | 50 | 0 |
| 1978 | 81 | 0 |
| 1979 | 65 | 0 |
| 1980 | 47 | 0 |
| 1981 | 52 | 0 |
| 1982 | 49 | 0 |
| 1983 | 42 | 0 |
| 1984 | 27 | 0 |
| 1985 | 25 | 0 |
| 1986 | 19 | 0 |
| 1987 | 30 | 0 |
| 1988 | 29 | 0 |
| 1989 | 58 | 0 |
| 1990 | 40 | 0 |
| 1991 | 40 | 0 |
| 1992 | 42 | 0 |
| 1993 | 42 | 0 |
| 1994 | 61 | 0 |
| 1995 | 39 | 0 |
| 1996 | 59 | 0 |
| 1997 | 47 | 0 |
| 1998 | 67 | 0 |
| 1999 | 39 | 0 |
| 2000 | 33 | 0 |
| 2001 | 33 | 4 |
| 2002 | 21 | 19 |
| 2003 | 20 | 10 |
| 2004 | 9 | 8 |
| 2005 | 4 | 5 |
| 2006 | 1 | 3 |
| 2007 | 1 | 2 |
| 2008 | 2 | 4 |
| 2009 | 1 | 2 |
| 2010 | 1 | 5 |
| 2011 | 4 | 4 |
| 2012 | 4 | 4 |
| 2013 | 5 | 0 |
| 2014 | 1 | 3 |
| 2015 | 0 | 2 |
| 2016 | 3 | 7 |
| 2017 | 3 | 22 |
| 2018 | 5 | 21 |
| 2019 | 13 | 14 |
| 2020 | 14 | 13 |
| 2021 | 13 | 12 |
| 2022 | 11 | 14 |
| 2023 | 10 | 14 |
| 2024 | 10 | 7 |
| 2025 | 11 | 9 |
| 2026 | 6 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Multipurpose oxypyridinones and their functional use-37 Jul 2026US 12,674,113 B2Infineum International Limited
- 1,4-benzoxazine compounds and lubricant compositions containing the same21 Apr 2026US 12,606,767 B2The Lubrizol Corporation
- Lubricating oil composition, diesel engine with mounted supercharger, and use method for lubricating oil composition10 Mar 2026US 12,570,921 B2Idemitsu Kosan Co., Ltd.
- Grease composition, pivot assembly bearing, and bearing apparatus including the bearing27 Jan 2026US 12,534,680 B2MINEBEA MITSUMI Inc.
- Rolling bearing, pivot assembly bearing, and disk drive apparatus27 Jan 2026US 12,534,681 B2MINEBEA MITSUMI Inc.
- Hydraulic fluid compositions for agricultural machinery17 Sep 2026US 2026/0275227 A1Chevron Oronite Company LLC
- Lubricating fluid for an electric motor7 May 2026US 2026/0125612 A1Afton Chemical Corporation
- Increased electric conductivity of a lubricant with amphiphilic amine and amphiphilic acid4 Sep 2025US 2025/0277163 A1BASF SE
- Lubricant composition8 May 2025US 2025/0145903 A1Idemitsu Kosan Co., Ltd.
- 1,4-Benzoxazine Compounds And Lubricant Compositions Containing The Same10 Apr 2025US 2025/0115823 A1The Lubrizol Corporation
Most cited
By later US patents
- Lubricating composition228US 4,956,122 AUniroyal Chemical Company, Inc. · 1990
- Polybutyl-and polyisobutylamines, their preparation, and fuel compositions containing these135US 4,832,702 ABASF SE · 1989
- Oil-soluble phosphorus antiwear additives for lubricants118US 4,857,214 AEthylk Petroleum Additives, Inc. · 1989
- Stabilized imide graft of ethylene copolymeric additives for lubricants117US 4,137,185 AExxon Research & Engineering Co. · 1979
- Extended life functional fluid116US 3,933,659 AChevron Research Company · 1976