F25B 30/00
Heat pumps
Official title: Heat pumps (F25B1/00-F25B25/00, F25B29/00 take precedence)
F25B30/00 (Heat pumps) appears on 1,349 US grants and 1,601 published applications in this corpus.
Search patents in F25B- Granted patents
- 1,349
- Published applications
- 1,601
- Assignees
- 664
- Inventors
- 3,040
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 5 | 0 |
| 1978 | 15 | 0 |
| 1979 | 17 | 0 |
| 1980 | 28 | 0 |
| 1981 | 31 | 0 |
| 1982 | 31 | 0 |
| 1983 | 21 | 0 |
| 1984 | 17 | 0 |
| 1985 | 13 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 9 | 0 |
| 1991 | 11 | 0 |
| 1992 | 5 | 0 |
| 1993 | 12 | 0 |
| 1994 | 5 | 0 |
| 1995 | 7 | 0 |
| 1996 | 6 | 0 |
| 1997 | 9 | 0 |
| 1998 | 11 | 0 |
| 1999 | 6 | 0 |
| 2000 | 9 | 0 |
| 2001 | 5 | 2 |
| 2002 | 14 | 19 |
| 2003 | 13 | 14 |
| 2004 | 13 | 15 |
| 2005 | 11 | 23 |
| 2006 | 15 | 17 |
| 2007 | 17 | 31 |
| 2008 | 15 | 17 |
| 2009 | 10 | 23 |
| 2010 | 10 | 31 |
| 2011 | 15 | 60 |
| 2012 | 7 | 49 |
| 2013 | 15 | 86 |
| 2014 | 31 | 92 |
| 2015 | 43 | 122 |
| 2016 | 65 | 93 |
| 2017 | 100 | 81 |
| 2018 | 87 | 96 |
| 2019 | 91 | 90 |
| 2020 | 80 | 94 |
| 2021 | 69 | 86 |
| 2022 | 72 | 82 |
| 2023 | 67 | 82 |
| 2024 | 83 | 105 |
| 2025 | 62 | 101 |
| 2026 | 53 | 90 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Heat pump, method for operating a heat pump, and transportation vehicle with a heat pump15 Sep 2026US 12,736,256 B2Volkswagen Aktiengesellschaft
- Meltwater management systems and methods for cold-climate heat pumps15 Sep 2026US 12,736,271 B2Treau, Inc.
- Vehicle power supply system8 Sep 2026US 12,728,767 B2IHI Corporation
- Heat pump8 Sep 2026US 12,729,889 B2LG Electronics Inc.
- Heat pump system8 Sep 2026US 12,729,890 B2Samsung Electronics Co., Ltd.
- Air conditioning appliances defrost8 Oct 2026US 2026/0309351 A1Haier US Appliance Solutions, Inc.
- Heat pump8 Oct 2026US 2026/0309378 A1Daikin Europe N.V.
- Heat pump module, plant comprising such heat pump module and method for heating a substance8 Oct 2026US 2026/0309379 A1Snf Group
- Refrigerant distribution device, and an air-conditioning apparatus including refrigerant distribution device8 Oct 2026US 2026/0309382 A1Mitsubishi Electric Corporation
- Method of operating a heat cycle system, heat cycle system and method of modifying a heat cycle system1 Oct 2026US 2026/0298113 A1Noditech AB
Most cited
By later US patents
- High efficiency absorption heat pump and methods of use143US 7,313,926 B2Rexorce Thermionics, Inc. · 2008
- Combined ambient-air and earth exchange heat pump system141US 5,461,876 A1995
- Heat management system for aircraft140US 4,505,124 AThe United States of America as represented by the Secretary of the Air Force · 1985
- Refrigeration-cycle device123US 6,347,528 B1Denso Corporation · 2002
- Geothermal heat transfer system116US 4,993,483 A1991