C10N 2040/30
Refrigerators lubricants or compressors lubricants
Official title: Refrigerators lubricants {or compressors lubricants}
C10N2040/30 (Refrigerators lubricants or compressors lubricants) appears on 1,653 US grants and 1,031 published applications in this corpus.
Search patents in C10N- Granted patents
- 1,653
- Published applications
- 1,031
- Assignees
- 488
- Inventors
- 2,513
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 11 | 0 |
| 1978 | 11 | 0 |
| 1979 | 11 | 0 |
| 1980 | 8 | 0 |
| 1981 | 22 | 0 |
| 1982 | 20 | 0 |
| 1983 | 13 | 0 |
| 1984 | 23 | 0 |
| 1985 | 14 | 0 |
| 1986 | 8 | 0 |
| 1987 | 11 | 0 |
| 1988 | 20 | 0 |
| 1989 | 28 | 0 |
| 1990 | 42 | 0 |
| 1991 | 56 | 0 |
| 1992 | 45 | 0 |
| 1993 | 61 | 0 |
| 1994 | 72 | 0 |
| 1995 | 76 | 0 |
| 1996 | 69 | 0 |
| 1997 | 61 | 0 |
| 1998 | 72 | 0 |
| 1999 | 51 | 0 |
| 2000 | 36 | 0 |
| 2001 | 61 | 18 |
| 2002 | 48 | 33 |
| 2003 | 32 | 35 |
| 2004 | 22 | 34 |
| 2005 | 16 | 28 |
| 2006 | 11 | 12 |
| 2007 | 12 | 26 |
| 2008 | 12 | 14 |
| 2009 | 14 | 45 |
| 2010 | 12 | 49 |
| 2011 | 29 | 38 |
| 2012 | 28 | 43 |
| 2013 | 35 | 52 |
| 2014 | 37 | 28 |
| 2015 | 32 | 55 |
| 2016 | 45 | 62 |
| 2017 | 48 | 73 |
| 2018 | 41 | 56 |
| 2019 | 44 | 68 |
| 2020 | 40 | 48 |
| 2021 | 47 | 49 |
| 2022 | 41 | 48 |
| 2023 | 25 | 38 |
| 2024 | 22 | 30 |
| 2025 | 26 | 29 |
| 2026 | 22 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Compressor and refrigeration cycle apparatus8 Sep 2026US 12,729,346 B2Daikin Industries, Ltd.
- Furan based compositions and methods of making thereof11 Aug 2026US 12,703,689 B2University of Delaware
- 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
- Refrigerator oil composition and refrigerator mixture composition21 Jul 2026US 12,686,833 B2Idemitsu Kosan Co., Ltd.
- Base oil for refrigerator oil, refrigerator oil, and working fluid composition17 Sep 2026US 2026/0275222 A1Eneos Corporation
- Refrigerator oil composition, and composition for refrigerators10 Sep 2026US 2026/0265637 A1Idemitsu Kosan Co., Ltd.
- High-temperature resistant grease for elastomer seals of hydrogen injectors or compressors20 Aug 2026US 2026/0242686 A1Zhejiang University
- Refrigeration oil, composition for refrigerator, and heat pump including the same20 Aug 2026US 2026/0242691 A1SK Innovation Co., Ltd.
- Lubricant including an ester of pyromellitic acid for refrigeration systems13 Aug 2026US 2026/0234486 A1The Lubrizol Corporation
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
- Visco-elastic, isotropic materials based on water, fluorinate sufactants and fluorinated oils, process for their preparation, and their use in various fields, such as optics, pharmacology and electrodynamics274US 5,185,099 AInstitut National de Recherche Chimique Appliquee · 1993
- Lubricative coating composition, article and assembly containing same and method thereof210US 5,266,359 ABecton, Dickinson and Company · 1993
- Refrigeration lubricants168US 4,755,316 AAllied-Signal Inc. · 1988
- Method for preparing lubricated surfaces and product133US 4,844,986 ABecton, Dickinson and Company · 1989