C10M 105/42
Complex esters, i.e. compounds containing at least three esterified carboxyl groups and
Official title: Complex esters, i.e. compounds containing at least three esterified carboxyl groups and derived from the combination of at least three different types of the following five types of compound: monohydroxy compounds, polyhydroxy compounds, monocarboxylic acids, polycarboxylic acids and hydroxy carboxylic acids
C10M105/42 (Complex esters, i.e. compounds containing at least three esterified carboxyl groups and) appears on 175 US grants and 125 published applications in this corpus.
Search patents in C10M- Granted patents
- 175
- Published applications
- 125
- Assignees
- 92
- Inventors
- 394
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 9 | 0 |
| 1996 | 9 | 0 |
| 1997 | 4 | 0 |
| 1998 | 9 | 0 |
| 1999 | 9 | 0 |
| 2000 | 5 | 0 |
| 2001 | 12 | 3 |
| 2002 | 3 | 6 |
| 2003 | 5 | 1 |
| 2004 | 1 | 3 |
| 2005 | 3 | 0 |
| 2006 | 2 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 0 | 4 |
| 2012 | 4 | 6 |
| 2013 | 8 | 11 |
| 2014 | 4 | 7 |
| 2015 | 6 | 8 |
| 2016 | 8 | 17 |
| 2017 | 11 | 8 |
| 2018 | 8 | 6 |
| 2019 | 6 | 9 |
| 2020 | 6 | 6 |
| 2021 | 5 | 7 |
| 2022 | 6 | 6 |
| 2023 | 5 | 3 |
| 2024 | 3 | 2 |
| 2025 | 1 | 3 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Ester compound and preparation method therefor and uses thereof6 Oct 2026US 12,753,143 B2China Petroleum & Chemical Corporation
- Use of a biodegradable lubricant base, and method for the preparation thereof23 Jun 2026US 12,662,643 B2Nyco
- Working fluid, freezer, and freezer oil1 Jul 2025US 12,344,809 B2Eneos Corporation
- Transmission fluid24 Dec 2024US 12,173,251 B2Shell USA, Inc.
- Method for producing estolide esters and composition of estolide esters3 Sep 2024US 12,077,493 B2Nyco
- Ester for refrigerator oil, base oil for refrigerator oil, refrigerator oil, and working fluid composition13 Aug 2026US 2026/0234487 A1Eneos Corporation
- Ester mixture, and lubricating base oil and lubricant composition comprising the same9 Jul 2026US 2026/0193558 A1SK Innovation Co., Ltd.
- Refrigeration lubricant and working fluid including the same30 Apr 2026US 2026/0117138 A1Patech Fine Chemicals Co., Ltd.
- Motor and gearbox fluid formulations and uses thereof16 Apr 2026US 2026/0103654 A1Tesla, Inc.
- Use of a biodegradable lubricant base, and method for the preparation thereof9 Oct 2025US 2025/0313770 A1Nyco
Most cited
By later US patents
- Lubricating oil for refrigerator75US 5,185,092 ATonen Corporation · 1993
- Lubrication for refrigerant heat transfer fluids66US 5,021,179 AHenkel Corporation · 1991
- Polyol ester lubricants for refrigerating compressors operating at high temperatures55US 5,833,876 AHenkel Corporation · 1998
- Synthetic lubricating oils53US 5,262,076 ANippon Oil Co., Ltd. · 1993
- Refrigerating fluid compositions comprising estolide compounds49US 8,236,194 B1LubriGreen Biosynthetics, LLC · 2012