C10M 2207/30
Complex esters, i.e. compounds containing at leasst three esterified carboxyl groups and
Official title: Complex esters, i.e. compounds containing at leasst three esterified carboxyl groups and derived from the combination of at least three different types of the following five types of compounds: monohydroxyl compounds, polyhydroxy xompounds, monocarboxylic acids, polycarboxylic acids or hydroxy carboxylic acids
C10M2207/30 (Complex esters, i.e. compounds containing at leasst three esterified carboxyl groups and) appears on 391 US grants and 233 published applications in this corpus.
Search patents in C10M- Granted patents
- 391
- Published applications
- 233
- Assignees
- 153
- Inventors
- 674
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 16 | 0 |
| 1978 | 22 | 0 |
| 1979 | 10 | 0 |
| 1980 | 12 | 0 |
| 1981 | 9 | 0 |
| 1982 | 8 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 9 | 0 |
| 1995 | 13 | 0 |
| 1996 | 13 | 0 |
| 1997 | 4 | 0 |
| 1998 | 16 | 0 |
| 1999 | 12 | 0 |
| 2000 | 7 | 0 |
| 2001 | 14 | 4 |
| 2002 | 7 | 7 |
| 2003 | 8 | 8 |
| 2004 | 6 | 10 |
| 2005 | 5 | 3 |
| 2006 | 4 | 4 |
| 2007 | 3 | 5 |
| 2008 | 1 | 7 |
| 2009 | 2 | 6 |
| 2010 | 3 | 7 |
| 2011 | 1 | 7 |
| 2012 | 9 | 18 |
| 2013 | 15 | 14 |
| 2014 | 11 | 11 |
| 2015 | 13 | 13 |
| 2016 | 11 | 26 |
| 2017 | 21 | 13 |
| 2018 | 12 | 11 |
| 2019 | 7 | 14 |
| 2020 | 7 | 6 |
| 2021 | 8 | 10 |
| 2022 | 7 | 12 |
| 2023 | 10 | 7 |
| 2024 | 6 | 3 |
| 2025 | 5 | 4 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C10M 2207/301Used as base materialIndexing code184
- C10M 2207/302Derived from the combination of monocarboxylic acids, dicarboxylic acids and dihydroxy compoundsIndexing code122
- C10M 2207/304Derived from the combination of monohydroxy compounds, dihydroxy compounds and dicarboxylic acidsIndexing code97
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
- Process for converting biosourced triglycerides into a single-phase composition containing fatty acid ester and related uses as biofuel or lubricant6 Jan 2026US 12,516,266 B2Autarcycle Inc.
- Lubricant composition and use thereof11 Nov 2025US 12,467,011 B2Klueber Lubrication Muenchen SE & Co. KG
- Working fluid, freezer, and freezer oil1 Jul 2025US 12,344,809 B2Eneos Corporation
- Ester for refrigerator oil, base oil for refrigerator oil, refrigerator oil, and working fluid composition13 Aug 2026US 2026/0234487 A1Eneos Corporation
- Complex ester, refrigerator oil, and working fluid composition30 Jul 2026US 2026/0218082 A1Eneos Corporation
- Ester mixture, and lubricating base oil and lubricant composition comprising the same9 Jul 2026US 2026/0193558 A1SK Innovation Co., Ltd.
- Lubricant composition13 Nov 2025US 2025/0346826 A1Nof Corporation
- Use of a biodegradable lubricant base, and method for the preparation thereof9 Oct 2025US 2025/0313770 A1Nyco
Most cited
By later US patents
- Modified high molecular weight succinimides114US 5,334,321 AChevron Research and Technology Company, a Division of Chevron U.S.A. Inc. · 1994
- Polymeric additives for fuels and lubricants97US 4,089,794 AExxon Research & Engineering Co. · 1978
- Dispersants and process for their preparation88US 3,980,569 AThe Lubrizol Corporation · 1976
- Biodegradable non-toxic gear oil88US 6,649,574 B2ExxonMobil Research and Engineering Company · 2003
- Lubricant composition86US 4,105,571 AExxon Research & Engineering Co. · 1978