C10M 2207/28
Esters
C10M2207/28 (Esters) appears on 4,121 US grants and 3,171 published applications in this corpus.
Search patents in C10M- Granted patents
- 4,121
- Published applications
- 3,171
- Assignees
- 1,054
- Inventors
- 6,309
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 120 | 0 |
| 1977 | 102 | 0 |
| 1978 | 142 | 0 |
| 1979 | 108 | 0 |
| 1980 | 87 | 0 |
| 1981 | 85 | 0 |
| 1982 | 50 | 0 |
| 1983 | 43 | 0 |
| 1984 | 39 | 0 |
| 1985 | 35 | 0 |
| 1986 | 31 | 0 |
| 1987 | 33 | 0 |
| 1988 | 42 | 0 |
| 1989 | 69 | 0 |
| 1990 | 66 | 0 |
| 1991 | 70 | 0 |
| 1992 | 74 | 0 |
| 1993 | 69 | 0 |
| 1994 | 92 | 0 |
| 1995 | 99 | 0 |
| 1996 | 100 | 0 |
| 1997 | 100 | 0 |
| 1998 | 118 | 0 |
| 1999 | 106 | 0 |
| 2000 | 66 | 0 |
| 2001 | 97 | 19 |
| 2002 | 67 | 72 |
| 2003 | 77 | 107 |
| 2004 | 61 | 120 |
| 2005 | 38 | 113 |
| 2006 | 30 | 117 |
| 2007 | 38 | 115 |
| 2008 | 43 | 126 |
| 2009 | 41 | 144 |
| 2010 | 87 | 153 |
| 2011 | 101 | 146 |
| 2012 | 122 | 182 |
| 2013 | 116 | 157 |
| 2014 | 129 | 139 |
| 2015 | 114 | 165 |
| 2016 | 108 | 166 |
| 2017 | 128 | 153 |
| 2018 | 114 | 165 |
| 2019 | 102 | 147 |
| 2020 | 113 | 105 |
| 2021 | 91 | 124 |
| 2022 | 101 | 114 |
| 2023 | 80 | 91 |
| 2024 | 59 | 97 |
| 2025 | 71 | 88 |
| 2026 | 47 | 46 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C10M 2207/283Of polyhydroxy compoundsIndexing code2,183
- C10M 2207/282Of aliphatic oolycarboxylic acidsIndexing code1,933
- C10M 2207/281Of aliphatic monocarboxylic acidsIndexing code1,589
- C10M 2207/287Partial estersIndexing code1,521
- C10M 2207/286Of polymerised unsaturated acidsIndexing code1,257
- C10M 2207/34Esters having a hydrocarbon substituent of thirty or more carbon atomsIndexing code1,185
- C10M 2207/285Of aromatic polycarboxylic acidsIndexing code516
- C10M 2207/30Complex esters, i.e. compounds containing at leasst three esterified carboxyl groups andIndexing code391
Recent patents
- Ester compound and preparation method therefor and uses thereof6 Oct 2026US 12,753,143 B2China Petroleum & Chemical Corporation
- Magnesium sulfonate detergent having improved compatibility with friction modifiers6 Oct 2026US 12,753,362 B2Afton Chemical Corporation
- Lubricating oil composition and sliding mechanism15 Sep 2026US 12,735,653 B2KYB Corporation
- Heat transfer compositions, methods, and systems11 Aug 2026US 12,703,817 B2Solstice Advanced Materials US, Inc.
- Refrigeration cycle device and compressor28 Jul 2026US 12,692,455 B2Mitsubishi Electric Corporation
- Lubricating compositions8 Oct 2026US 2026/0308473 A1Tribodyn, Inc.
- Electric vehicle fluids1 Oct 2026US 2026/0297448 A1Chevron Oronite Company LLC
- Control method for circulation and reclamation of industrial oil, control system for circulation and reclamation of industrial oil, and production method for reclaimed industrial oil composition1 Oct 2026US 2026/0297453 A1Citizen Watch Co., Ltd.
- Base oil for refrigerator oil, refrigerator oil, and working fluid composition17 Sep 2026US 2026/0275222 A1Eneos Corporation
- Hydraulic fluid compositions for agricultural machinery17 Sep 2026US 2026/0275227 A1Chevron Oronite Company LLC
Most cited
By later US patents
- Refrigerator oil, compressor oil composition, hydraulic fluid composition, metalworking fluid composition, heat treatment oil composition, lubricant composition for machine tool and lubricant composition779US 8,193,129 B2Nippon Oil Co., Ltd. · 2012
- 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
- Lubricating composition228US 4,956,122 AUniroyal Chemical Company, Inc. · 1990
- Lubricative coating composition, article and assembly containing same and method thereof210US 5,266,359 ABecton, Dickinson and Company · 1993
- Video device synchronization system190US 4,532,547 AAmpex Corporation · 1985