F04B 2201/0807
Number of working cylinders
F04B2201/0807 (Number of working cylinders) appears on 12 US grants and 15 published applications in this corpus.
Search patents in F04B- Granted patents
- 12
- Published applications
- 15
- Assignees
- 9
- Inventors
- 27
- Latest grant
- 12 Dec 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 2 |
| 2018 | 1 | 1 |
| 2019 | 1 | 3 |
| 2020 | 0 | 0 |
| 2021 | 1 | 4 |
| 2022 | 3 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Control method of compressor and refrigerant circulation system12 Dec 2023US 11,841,011 B2Gree Electric Appliances, Inc. of Zhuhai
- Compressor control method, control apparatus and control system1 Nov 2022US 11,486,384 B2Gree Electric Appliances, Inc. of Zhuhai
- Cylinder on demand hydraulic device17 May 2022US 11,333,145 B2
- Rotatable piston assembly29 Mar 2022US 11,286,775 B2Poisedon Fluid Power, LLC
- Compressor2 Mar 2021US 10,935,014 B2Gea Bock GmbH
- Control Method of Compressor and Refrigerant Circulation System30 Sep 2021US 2021/0301812 A1Gree Electric Appliances, Inc. of Zhuhai
- Cylinder on demand hydraulic device16 Sep 2021US 2021/0285438 A1
- Compressor Control Method, Control Apparatus and Control System9 Sep 2021US 2021/0277885 A1Gree Electric Appliances, Inc. of Zhuhai
- Method and Apparatus for Controlling Compressor to Switch Cylinder Mode, Unit, and Air Conditioner System26 Aug 2021US 2021/0262713 A1Gree Electric Appliances, Inc. of Zhuhai
- Rotatable piston assembly18 Apr 2019US 2019/0112926 A1CurAegis Technologies, Inc.
Most cited
By later US patents
- Control for a fluid pressure supply system, particularly for high pressure in a fuel injection system29US 6,293,253 B1Siemens Aktiengesellschaft · 2001
- Refrigerating system employing a compressor for single or multi-stage operation with capacity control21US 5,768,901 ACarrier Corporation · 1998
- Digital pump8US 6,183,207 B2Sturman Industries, Inc. · 2001
- Fluid-working machine and operating method2US 10,094,372 B2Artemis Intelligent Power Limited · 2018
- Economized reciprocating compressor2US 10,253,766 B2Carrier Corporation · 2019