F04C 2270/015
Controlled or regulated
F04C2270/015 (Controlled or regulated) appears on 24 US grants and 17 published applications in this corpus.
Search patents in F04C- Granted patents
- 24
- Published applications
- 17
- Assignees
- 10
- Inventors
- 23
- Latest grant
- 24 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 3 |
| 2002 | 6 | 1 |
| 2003 | 2 | 3 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 2 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 2 |
| 2019 | 1 | 1 |
| 2020 | 2 | 1 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 2 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Voltage optimization technique for a permanent magnet motor used in an electric submersible pump24 Jun 2025US 12,341,398 B2Toshiba International Corporation
- Rotary compressor and refrigeration cycle apparatus21 Nov 2023US 11,821,664 B2Toshiba Carrier Corporation
- Voltage optimization technique for a permanent magnet motor used in an electric submersible pump5 Sep 2023US 11,750,057 B2Toshiba International Corporation
- Capacity control for chillers having screw compressors15 Jun 2021US 11,035,600 B2Johnson Controls Technology Company
- Pump protection method and system27 Oct 2020US 10,815,987 B2FMC Kongsberg Subsea AS
- Voltage optimization technique for a permanent magnet motor used in an electric submersible pump9 Nov 2023US 2023/0361645 A1Toshiba International Corporation
- Rotary compressor and refrigeration cycle apparatus21 Jan 2021US 2021/0018231 A1Toshiba Carrier Corporation
- Voltage optimization technique for a permanent magnet motor used in an electric submersible pump8 Oct 2020US 2020/0321824 A1Toshiba International Corporation
- Capacity control for chillers having screw compressors15 Aug 2019US 2019/0249666 A1Johnson Controls Technology Company
- Compressor control for increased efficiency13 Dec 2018US 2018/0356139 A1Trane International Inc.
Most cited
By later US patents
- Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor194US 6,047,557 ACopeland Corporation · 2000
- Capacity modulated scroll machine156US 5,741,120 ACopeland Corporation · 1998
- Diagnostic system and method for a cooling system104US 6,679,072 B2Copeland Corporation · 2004
- Capacity modulated scroll machine having one or more pin members movably disposed for restricting the radius of the orbiting scroll member87US 6,086,335 ACopeland Corporation · 2000
- Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor80US 6,449,972 B2Copeland Corporation · 2002