C10M 171/008
Lubricant compositions compatible with refrigerants
Official title: {Lubricant compositions compatible with refrigerants}
C10M171/008 (Lubricant compositions compatible with refrigerants) appears on 787 US grants and 725 published applications in this corpus.
Search patents in C10M- Granted patents
- 787
- Published applications
- 725
- Assignees
- 180
- Inventors
- 976
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 6 | 0 |
| 1990 | 14 | 0 |
| 1991 | 14 | 0 |
| 1992 | 16 | 0 |
| 1993 | 16 | 0 |
| 1994 | 18 | 0 |
| 1995 | 28 | 0 |
| 1996 | 26 | 0 |
| 1997 | 14 | 0 |
| 1998 | 27 | 0 |
| 1999 | 21 | 0 |
| 2000 | 13 | 0 |
| 2001 | 38 | 8 |
| 2002 | 21 | 18 |
| 2003 | 15 | 19 |
| 2004 | 11 | 12 |
| 2005 | 10 | 23 |
| 2006 | 7 | 16 |
| 2007 | 9 | 17 |
| 2008 | 7 | 12 |
| 2009 | 13 | 32 |
| 2010 | 6 | 32 |
| 2011 | 27 | 31 |
| 2012 | 21 | 35 |
| 2013 | 26 | 34 |
| 2014 | 33 | 23 |
| 2015 | 19 | 40 |
| 2016 | 35 | 45 |
| 2017 | 32 | 59 |
| 2018 | 36 | 39 |
| 2019 | 41 | 34 |
| 2020 | 32 | 36 |
| 2021 | 28 | 36 |
| 2022 | 28 | 35 |
| 2023 | 19 | 28 |
| 2024 | 16 | 25 |
| 2025 | 16 | 22 |
| 2026 | 10 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Heat transfer compositions, methods, and systems11 Aug 2026US 12,703,817 B2Solstice Advanced Materials US, Inc.
- Lubricants for use in vapor-compression systems19 May 2026US 12,630,780 B2The Lubrizol Corporation
- Refrigerator oil composition and mixed composition for refrigerator12 May 2026US 12,624,306 B2Idemitsu Kosan Co., Ltd.
- Lubricant additive, lubricant composition, and working fluid composition31 Mar 2026US 12,590,263 B2Eneos Corporation
- Refrigerator oil composition and mixed composition for refrigerator17 Mar 2026US 12,577,448 B2Idemitsu Kosan Co., Ltd.
- 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
- Ester for refrigerator oil, base oil for refrigerator oil, refrigerator oil, and working fluid composition13 Aug 2026US 2026/0234487 A1Eneos Corporation
- Lubricant for use with chlorine-containing refrigerants in compressor applications13 Aug 2026US 2026/0234499 A1The Lubrizol Corporation
- Base oil for refrigerating machine oil, refrigerating machine oil, and working fluid composition6 Aug 2026US 2026/0226364 A1Eneos 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
- Refrigeration lubricants168US 4,755,316 AAllied-Signal Inc. · 1988
- Lubricants for refrigeration compressors105US 4,851,144 AThe Dow Chemical Company · 1989
- Refrigeration lubricating oil compositions75US 4,267,064 AMatsushita Electric Industrial Co., Ltd. · 1981
- Compositions and process of using in refrigeration75US 4,944,890 AE. I. Du Pont de Nemours and Company · 1990