C10M 2215/12
Partial amides of polycarboxylic acids
C10M2215/12 (Partial amides of polycarboxylic acids) appears on 514 US grants and 52 published applications in this corpus.
Search patents in C10M- Granted patents
- 514
- Published applications
- 52
- Assignees
- 139
- Inventors
- 816
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 9 | 0 |
| 1978 | 12 | 0 |
| 1979 | 10 | 0 |
| 1980 | 10 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 10 | 0 |
| 1984 | 7 | 0 |
| 1985 | 8 | 0 |
| 1986 | 7 | 0 |
| 1987 | 10 | 0 |
| 1988 | 22 | 0 |
| 1989 | 18 | 0 |
| 1990 | 15 | 0 |
| 1991 | 19 | 0 |
| 1992 | 16 | 0 |
| 1993 | 25 | 0 |
| 1994 | 22 | 0 |
| 1995 | 17 | 0 |
| 1996 | 40 | 0 |
| 1997 | 34 | 0 |
| 1998 | 40 | 0 |
| 1999 | 32 | 0 |
| 2000 | 22 | 0 |
| 2001 | 24 | 6 |
| 2002 | 20 | 10 |
| 2003 | 21 | 12 |
| 2004 | 8 | 6 |
| 2005 | 6 | 1 |
| 2006 | 2 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 0 | 3 |
| 2011 | 0 | 2 |
| 2012 | 1 | 2 |
| 2013 | 0 | 0 |
| 2014 | 3 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
| 2021 | 1 | 2 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Grease composition and rack-and-pinion-type steering device filled with the same grease composition25 Nov 2025US 12,480,068 B2Kyodo Yushi Co., Ltd.
- Lubricating composition for and method of lubricating an internal combustion engine21 Jun 2022US 11,365,367 B2The Lubrizol Corporation
- Nitrogen-free phosphorus compounds and lubricants containing the same26 Oct 2021US 11,155,765 B2The Lubrizol Corporation
- Nitrogen-free phosphorus compounds and lubricants containing the same10 Nov 2020US 10,829,713 B2
- Grease composition4 Aug 2015US 9,096,813 B2Shell Oil Company
- Grease composition and rack-and-pinion-type steering device filled with the same grease composition19 Jun 2025US 2025/0197759 A1Kyodo Yushi Co., Ltd.
- Lubricating composition for and method of lubricating an internal combustion engine20 May 2021US 2021/0147760 A1The Lubrizol Corporation
- Nitrogen-free phosphorus compounds and lubricants containing the same11 Feb 2021US 2021/0040412 A1The Lubrizol Corporation
- Nitrogen-free phosphorus compounds and lubricants containing the same19 Sep 2019US 2019/0284495 A1The Lubrizol Corporation
- Lubricant composition inhibiting adsorption of alpha-olefin, and method and agent for inhibiting adsorption of alpha-olefin28 Dec 2017US 2017/0369812 A1Shell Oil Company
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
- Ashless dispersants formed from substituted acylating agents and their production and use115US 5,241,003 AEthyl Petroleum Additives, Inc. · 1993
- Lubricating oil compositions and concentrates and the use thereof108US 5,652,201 AEthyl Petroleum Additives, Inc. · 1997
- Water-in-oil emulsions90US 4,844,756 AThe Lubrizol Corporation · 1989
- Lubricating oil composition containing a dispersing-varnish inhibiting combination of an oxazoline compound and an acyl nitrogen compound88US 4,113,639 AExxon Research & Engineering Co. · 1978