F25B 7/00
Compression machines, plants or systems, with cascade operation, i.e. with two or
Official title: Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit (F25B9/00 takes precedence)
F25B7/00 (Compression machines, plants or systems, with cascade operation, i.e. with two or) appears on 596 US grants and 753 published applications in this corpus.
Search patents in F25B- Granted patents
- 596
- Published applications
- 753
- Assignees
- 279
- Inventors
- 1,288
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 0 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 7 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 7 | 0 |
| 1999 | 4 | 0 |
| 2000 | 6 | 0 |
| 2001 | 9 | 3 |
| 2002 | 10 | 2 |
| 2003 | 8 | 1 |
| 2004 | 3 | 8 |
| 2005 | 2 | 3 |
| 2006 | 5 | 5 |
| 2007 | 0 | 6 |
| 2008 | 3 | 15 |
| 2009 | 4 | 13 |
| 2010 | 4 | 16 |
| 2011 | 11 | 29 |
| 2012 | 13 | 33 |
| 2013 | 3 | 25 |
| 2014 | 10 | 34 |
| 2015 | 21 | 37 |
| 2016 | 29 | 35 |
| 2017 | 37 | 39 |
| 2018 | 37 | 44 |
| 2019 | 39 | 41 |
| 2020 | 51 | 61 |
| 2021 | 27 | 48 |
| 2022 | 43 | 61 |
| 2023 | 35 | 50 |
| 2024 | 49 | 59 |
| 2025 | 52 | 40 |
| 2026 | 26 | 45 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Autocascade system with superheat control6 Oct 2026US 12,753,960 B2Trane International Inc.
- Distillation using mechanical advantage and a single fluid15 Sep 2026US 12,735,332 B1
- Heat pump, method for operating a heat pump, and transportation vehicle with a heat pump15 Sep 2026US 12,736,256 B2Volkswagen Aktiengesellschaft
- Low charge series chiller and free cooling1 Sep 2026US 12,723,781 B2Tyco Fire & Security GmbH
- Refrigeration and heat pump systems with pressure exchangers1 Sep 2026US 12,723,782 B2Energy Recovery, Inc.
- Heat pump module, plant comprising such heat pump module and method for heating a substance8 Oct 2026US 2026/0309379 A1Snf Group
- High-temperature internal cascade heat pumps for industrial manufacturing applications especially distillations1 Oct 2026US 2026/0295458 A1
- Chiller/heater process fluid temperature coordination1 Oct 2026US 2026/0298516 A1Trane International Inc.
- Heat Pump Systems and Methods17 Sep 2026US 2026/0276247 A1AtmosZero, Inc.
- Field activated solid-state thermal switches and sub-kelvin adr stage including field activated solid-state thermal switches17 Sep 2026US 2026/0276251 A1Ohio State Innovation Foundation
Most cited
By later US patents
- Economizer control with variable capacity193US 5,095,712 ACarrier Corporation · 1992
- Low temperature storage cabinet100US 6,128,914 ASanyo Electric Co., Ltd. · 2000
- Precooling system for joule-thomson probe99US 5,758,505 ACryoGen, Inc. · 1998
- Supplying power to at least one cooling system component89US 6,813,897 B1Hewlett-Packard Development Company, L. P. · 2004
- Modular refrigeration system80US 5,970,731 AInternational Business Machines Corporation · 1999