F04C 15/0092
Control systems for the circulation of the lubricant
Official title: {Control systems for the circulation of the lubricant}
F04C15/0092 (Control systems for the circulation of the lubricant) appears on 32 US grants and 34 published applications in this corpus.
Search patents in F04C- Granted patents
- 32
- Published applications
- 34
- Assignees
- 25
- Inventors
- 72
- Latest grant
- 18 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 2 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 4 |
| 2013 | 0 | 1 |
| 2014 | 3 | 6 |
| 2015 | 1 | 4 |
| 2016 | 5 | 4 |
| 2017 | 3 | 0 |
| 2018 | 4 | 1 |
| 2019 | 1 | 2 |
| 2020 | 1 | 3 |
| 2021 | 5 | 2 |
| 2022 | 2 | 1 |
| 2023 | 2 | 2 |
| 2024 | 2 | 0 |
| 2025 | 1 | 1 |
By publication year.
Recent patents
- Oiling device and abnormality detection method of the same18 Mar 2025US 12,253,079 B2Kobelco Compressors Corporation
- System to pump fluid and control thereof13 Aug 2024US 12,060,878 B2Project Phoenix, LLC
- Internal gear machine with switching valves20 Feb 2024US 11,905,956 B2Hydraulik Nord Technologies GmbH
- Scroll compressor having function of regulating oil supply path25 Apr 2023US 11,635,077 B2LG Electronics Inc.
- Scroll compressor14 Mar 2023US 11,603,841 B2LG Electronics Inc.
- Motor and pump system with fluid level control plate6 Nov 2025US 2025/0341212 A1
- Oiling device and abnormality detection method of the same3 Aug 2023US 2023/0243352 A1Kobelco Compressors Corporation
- Internal gear machine22 Jun 2023US 2023/0193899 A1Hydraulik Nord Technologies GmbH
- Scroll compressor31 Mar 2022US 2022/0099094 A1LG Electronics Inc.
- System to pump fluid and control thereof14 Oct 2021US 2021/0317829 A1Project Phoenix, LLC
Most cited
By later US patents
- Oil supply system for engine13US 7,011,069 B2Aisin Seiki Kabushiki Kaisha · 2006
- Equal-walled gerotor pump for wellbore applications10US 10,138,885 B2Saudi Arabian Oil Company · 2018
- Refrigerant compressor and refrigeration cycle apparatus using the same5US 9,470,230 B2Johnson Controls-Hitachi Air Conditioning Technology (Hong Kong) Limited · 2016
- Subsea multiphase pump or compressor with magnetic coupling and cooling or lubrication by liquid or gas extracted from process fluid3US 10,393,115 B2FMC Technologies, Inc. · 2019
- Equal-walled gerotor pump for wellbore applications3US 10,584,702 B2Saudi Arabian Oil Company · 2020