F04B 39/0215
Characterised by the use of a special lubricant
Official title: {characterised by the use of a special lubricant}
F04B39/0215 (Characterised by the use of a special lubricant) appears on 44 US grants and 39 published applications in this corpus.
Search patents in F04B- Granted patents
- 44
- Published applications
- 39
- Assignees
- 32
- Inventors
- 129
- Latest grant
- 9 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 3 |
| 2007 | 1 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 1 |
| 2010 | 0 | 4 |
| 2011 | 1 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 3 | 0 |
| 2015 | 1 | 4 |
| 2016 | 2 | 1 |
| 2017 | 0 | 2 |
| 2018 | 1 | 3 |
| 2019 | 1 | 4 |
| 2020 | 5 | 2 |
| 2021 | 2 | 6 |
| 2022 | 1 | 0 |
| 2023 | 1 | 2 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Refrigerant compositions for refrigerant compressor systems9 Sep 2025US 12,410,351 B2The Chemours Company Fc, LLC
- Compressor and manufacturing method thereof7 May 2024US 11,976,650 B2LG Electronics Inc.
- Compressor and manufacturing method thereof3 Jan 2023US 11,542,939 B2LG Electronics Inc.
- Liquid injection ring and refrigerant lubricated bearing assembly18 Oct 2022US 11,473,625 B2Gree Electric Appliances, Inc. of Zhuhai
- Refrigerant compressor and freezer including same9 Feb 2021US 10,914,010 B2Panasonic Intellectual Property Management Co., Ltd.
- Refrigerant compositions for refrigerant compressor systems23 Nov 2023US 2023/0374361 A1The Chemours Company Fc, LLC
- Hermetic refrigerant compressor and refrigerator-freezer using the same5 Jan 2023US 2023/0003425 A1Panasonic Appliances Refrigeration Devices Singapore
- Refrigerant compressor and equipment using the same11 Nov 2021US 2021/0348808 A1Panasonic Appliances Refrigeration Devices Singapore
- Liquid Injection Ring and Refrigerant Lubricated Bearing Assembly2 Sep 2021US 2021/0270321 A1Gree Electric Appliances, Inc. of Zhuhai
- Compressor and manufacturing method thereof13 May 2021US 2021/0140424 A1LG Electronics Inc.
Most cited
By later US patents
- Refrigeration device using hydrofluorocarbon refrigerant54US 5,355,695 AMitsubishi Denki Kabushiki Kaisha · 1994
- Refrigerant-circulating system, and refrigerant compressor and refrigeration cycle employing the refrigerant compressor30US 6,189,322 B1Mitsubishi Denki Kabushiki Kaisha · 2001
- Compressor exhibiting an iron sulfide wear surface23US 5,273,410 AKabushiki Kaisha Toshiba · 1993
- Sealed type compressor and refrigerating cycle18US 5,548,973 AKabushiki Kaisha Toshiba · 1996
- Compressed dry air supply system15US 5,699,673 AKabushiki Kaisha Toyoda Jidoshokki Seisakusho · 1997