F04C 2270/01
Load
F04C2270/01 (Load) appears on 52 US grants and 40 published applications in this corpus.
Search patents in F04C- Granted patents
- 52
- Published applications
- 40
- Assignees
- 29
- Inventors
- 62
- Latest grant
- 24 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 5 |
| 2002 | 10 | 7 |
| 2003 | 6 | 5 |
| 2004 | 3 | 3 |
| 2005 | 2 | 0 |
| 2006 | 1 | 4 |
| 2007 | 0 | 1 |
| 2008 | 3 | 0 |
| 2009 | 1 | 1 |
| 2010 | 2 | 1 |
| 2011 | 1 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 2 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 2 |
| 2019 | 1 | 1 |
| 2020 | 2 | 1 |
| 2021 | 1 | 3 |
| 2022 | 1 | 0 |
| 2023 | 2 | 2 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Voltage optimization technique for a permanent magnet motor used in an electric submersible pump24 Jun 2025US 12,341,398 B2Toshiba International Corporation
- Method for determining a discharge pressure of a rolling piston compressor24 Sep 2024US 12,098,722 B2Haier US Appliance Solutions, Inc.
- 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
- Load identification method for reciprocating machinery based on information entropy and envelope features of axis trajectory of piston rod25 Jan 2022US 11,231,038 B2Beijing University of Chemical Technology
- Method for determining a discharge pressure of a rolling piston compressor30 Nov 2023US 2023/0383741 A1Haier US Appliance Solutions, Inc.
- Voltage optimization technique for a permanent magnet motor used in an electric submersible pump9 Nov 2023US 2023/0361645 A1Toshiba International Corporation
- Method for controlling the temperature of a vacuum pump, and associated vacuum pump and installation30 Dec 2021US 2021/0404476 A1Pfeiffer Vacuum GmbH
- Load Identification Method for Reciprocating Machinery Based on Information Entropy and Envelope Features of Axis Trajectory of Piston Rod13 May 2021US 2021/0140431 A1Beijing University of Chemical Technology
- Rotary compressor and refrigeration cycle apparatus21 Jan 2021US 2021/0018231 A1Toshiba Carrier Corporation
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
- Scroll machine with continuous capacity modulation148US 6,412,293 B1Copeland Corporation · 2002
- System and method for controlling rotary screw compressors125US 6,450,771 B1Coltec Industries Inc. · 2002
- System and methods for controlling rotary screw compressors122US 5,713,724 AColtec Industries Inc. · 1998