C10M 2219/042
Sulfate esters
C10M2219/042 (Sulfate esters) appears on 164 US grants and 75 published applications in this corpus.
Search patents in C10M- Granted patents
- 164
- Published applications
- 75
- Assignees
- 120
- Inventors
- 405
- Latest grant
- 7 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 3 | 0 |
| 1978 | 7 | 0 |
| 1979 | 4 | 0 |
| 1980 | 1 | 0 |
| 1981 | 6 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 5 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 7 | 0 |
| 1989 | 6 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 7 | 0 |
| 1996 | 9 | 0 |
| 1997 | 6 | 0 |
| 1998 | 2 | 0 |
| 1999 | 6 | 0 |
| 2000 | 5 | 0 |
| 2001 | 4 | 0 |
| 2002 | 1 | 2 |
| 2003 | 2 | 2 |
| 2004 | 3 | 2 |
| 2005 | 1 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 1 | 2 |
| 2010 | 2 | 6 |
| 2011 | 2 | 1 |
| 2012 | 3 | 5 |
| 2013 | 1 | 2 |
| 2014 | 3 | 4 |
| 2015 | 2 | 4 |
| 2016 | 3 | 2 |
| 2017 | 3 | 7 |
| 2018 | 2 | 5 |
| 2019 | 6 | 10 |
| 2020 | 3 | 4 |
| 2021 | 1 | 1 |
| 2022 | 2 | 2 |
| 2023 | 1 | 3 |
| 2024 | 3 | 2 |
| 2025 | 2 | 5 |
By publication year. Applications have been published since 2001.
Recent patents
- Anti-corrosive lubricant composition for electrical apparatus7 Oct 2025US 12,435,292 B2Guangdong Yingde Dosoon Fine Chemical Industry Co., Ltd.
- Emulsions having oil phase surfactants and water phase additive blends25 Mar 2025US 12,258,535 B2Pilot Chemical Corp.
- Lubricating agent15 Oct 2024US 12,116,545 B2Kao Corporation
- Oil-well metal pipe, and method for producing oil-well metal pipe1 Oct 2024US 12,104,085 B2Nippon Steel Corporation
- Composition for producing a lubricant composition20 Feb 2024US 11,905,489 B2Carl Bechem GmbH
- Fabrication fluids27 Feb 2025US 2025/0066684 A1Hydrant International Trading Co., Ltd.
- Compositions for Engine Carbon Removal from Lubricated Components13 Feb 2025US 2025/0051681 A1ATS Chemical, LLC
- Aqueous graphite lubricant compositions30 Jan 2025US 2025/0034479 A1
- Aqueous graphite lubricant compositions comprising dispersants23 Jan 2025US 2025/0027008 A1
- Lubricant compositions including polymeric dispersants16 Jan 2025US 2025/0019616 A1
Most cited
By later US patents
- Water-dispersible hydrophobic thickening agent122US 4,432,881 AThe Dow Chemical Company · 1984
- Thermoplastic compatible conveyor lubricant96US 5,352,376 AEcolab Inc. · 1994
- Alkyl ether amine conveyor lubricant79US 5,863,874 AEcolab Inc. · 1999
- Modified organophilic clay complexes, their preparation and non-aqueous systems containing them73US 4,517,112 ANL Industries, Inc. · 1985
- Enhanced oil recovery process using a hydrophobic associative composition containing a hydrophilic/hydrophobic polymer67US 4,814,096 AThe Dow Chemical Company · 1989