F25B 2400/074
With multiple cylinders
Official title: with multiple cylinders
F25B2400/074 (With multiple cylinders) appears on 42 US grants and 37 published applications in this corpus.
Search patents in F25B- Granted patents
- 42
- Published applications
- 37
- Assignees
- 24
- Inventors
- 106
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 4 |
| 2011 | 1 | 1 |
| 2012 | 2 | 2 |
| 2013 | 0 | 2 |
| 2014 | 0 | 3 |
| 2015 | 0 | 0 |
| 2016 | 1 | 2 |
| 2017 | 0 | 3 |
| 2018 | 1 | 5 |
| 2019 | 7 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 6 |
| 2022 | 2 | 0 |
| 2023 | 2 | 3 |
| 2024 | 2 | 2 |
| 2025 | 0 | 0 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Air conditioning system14 Jul 2026US 12,680,742 B2Guangdong Meizhi Precision-Manufacturing Co., Ltd.
- Positive displacement machine, compressor, cooling apparatus, and electronic equipment20 Jan 2026US 12,529,362 B2Seiko Epson Corporation
- Reciprocating-type compressor for refrigeration and/or conditioning and/or heat pump system17 Sep 2024US 12,092,373 B2Officine Mario Dorin S.P.A.
- Air conditioning system3 Sep 2024US 12,078,393 B2Guangdong Meizhi Precision-Manufacturing Co., Ltd.
- Control method of compressor and refrigerant circulation system12 Dec 2023US 11,841,011 B2Gree Electric Appliances, Inc. of Zhuhai
- Air conditioning system21 Nov 2024US 2024/0384904 A1Guangdong Meizhi Precision-Manufacturing Co., Ltd.
- Cryogenic refrigerator of stirling type with dual-piston compressor and concealed expander11 Jul 2024US 2024/0230168 A1Cryo Tech Ltd.
- Positive displacement machine, compressor, cooling apparatus, and electronic equipment12 Oct 2023US 2023/0323869 A1Seiko Epson Corporation
- Positive displacement machine, compressor, cooling apparatus, and electronic equipment12 Oct 2023US 2023/0324082 A1Seiko Epson Corporation
- Heat pumps and fluid pumps therefor9 Mar 2023US 2023/0074965 A1
Most cited
By later US patents
- Refrigerating systems with multiple evaporator fan and step control therefor61US 4,137,057 AKramer Trenton Company · 1979
- Capacity control for multi-stage compressors52US 5,626,027 ACarrier Corporation · 1997
- Two stage reciprocating compressors and associated HVAC system and methods47US 6,389,823 B1Bristol Compressors, Inc. · 2002
- Compressor for single or multi-stage operation45US 5,577,390 ACarrier Corporation · 1996
- Pretrip device for testing of a refrigeration system compressor39US 6,176,095 B1Carrier Corporation · 2001