C10M 2217/043
Mannich bases
C10M2217/043 (Mannich bases) appears on 626 US grants and 209 published applications in this corpus.
Search patents in C10M- Granted patents
- 626
- Published applications
- 209
- Assignees
- 157
- Inventors
- 890
- Latest grant
- 21 Nov 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 23 | 0 |
| 1977 | 18 | 0 |
| 1978 | 29 | 0 |
| 1979 | 29 | 0 |
| 1980 | 20 | 0 |
| 1981 | 14 | 0 |
| 1982 | 9 | 0 |
| 1983 | 7 | 0 |
| 1984 | 8 | 0 |
| 1985 | 6 | 0 |
| 1986 | 1 | 0 |
| 1987 | 13 | 0 |
| 1988 | 14 | 0 |
| 1989 | 22 | 0 |
| 1990 | 25 | 0 |
| 1991 | 25 | 0 |
| 1992 | 29 | 0 |
| 1993 | 33 | 0 |
| 1994 | 32 | 0 |
| 1995 | 22 | 0 |
| 1996 | 24 | 0 |
| 1997 | 23 | 0 |
| 1998 | 23 | 0 |
| 1999 | 17 | 0 |
| 2000 | 20 | 0 |
| 2001 | 10 | 4 |
| 2002 | 10 | 11 |
| 2003 | 12 | 7 |
| 2004 | 8 | 17 |
| 2005 | 6 | 16 |
| 2006 | 2 | 6 |
| 2007 | 2 | 10 |
| 2008 | 3 | 22 |
| 2009 | 1 | 15 |
| 2010 | 9 | 10 |
| 2011 | 14 | 9 |
| 2012 | 5 | 9 |
| 2013 | 10 | 10 |
| 2014 | 5 | 8 |
| 2015 | 10 | 13 |
| 2016 | 8 | 6 |
| 2017 | 8 | 11 |
| 2018 | 2 | 11 |
| 2019 | 5 | 8 |
| 2020 | 5 | 3 |
| 2021 | 2 | 3 |
| 2022 | 1 | 0 |
| 2023 | 2 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Low molecular weight amide/ester containing quaternary ammonium salts21 Nov 2023US 11,820,957 B2The Lubrizol Corporation
- Low zinc lubricant composition13 Jun 2023US 11,674,106 B2The Lubrizol Corporation
- Combinations of phosphorous-containing compounds for use as anti-wear additives in lubricant compositions4 Jan 2022US 11,214,750 B2Afton Chemical Corporation
- Lubricant composition containing an antiwear agent27 Jul 2021US 11,072,758 B2The Lubrizol Corporation
- Quaternary ammonium compounds as fuel or lubricant additives20 Jul 2021US 11,066,617 B2Innospec Limited
- Polyisobutylene-substituted phenol, derivatives thereof, and lubricating compositions containing the polyisobutylene-substituted phenol and its derivatives2 Sep 2021US 2021/0269734 A1The Lubrizol Corporation
- Low molecular weight amide/ester containing quaternary ammonium salts15 Jul 2021US 2021/0214639 A1The Lubrizol Corporation
- Polyolefin-derived dispersants11 Mar 2021US 2021/0070900 A1Afton Chemical Corporation
- Polyisobutylene-substituted phenol, derivatives thereof, and lubricating compositions containing the polyisobutylene-substituted phenol and its derivatives3 Dec 2020US 2020/0377815 A1The Lubrizol Corporation
- Low Zinc Lubricant Composition2 Jul 2020US 2020/0208074 A1The Lubrizol Corporation
Most cited
By later US patents
- Lubricating composition228US 4,956,122 AUniroyal Chemical Company, Inc. · 1990
- Polyolefinic copolymer additives for lubricants and fuels123US 4,160,739 ARohm and Haas Company · 1979
- Oil-soluble phosphorus antiwear additives for lubricants118US 4,857,214 AEthylk Petroleum Additives, Inc. · 1989
- Coating and bonding composition115US 5,286,393 AJet-Lube, Inc. · 1994
- Lubricant113US 4,218,330 AEthyl Corporation · 1980