F25B 30/06
Heat pumps: characterised by the source of low potential heat
Official title: characterised by the source of low potential heat
F25B30/06 (Heat pumps: characterised by the source of low potential heat) appears on 335 US grants and 327 published applications in this corpus.
Search patents in F25B- Granted patents
- 335
- Published applications
- 327
- Assignees
- 211
- Inventors
- 686
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 5 | 0 |
| 1981 | 8 | 0 |
| 1982 | 6 | 0 |
| 1983 | 5 | 0 |
| 1984 | 5 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 8 | 0 |
| 1991 | 9 | 0 |
| 1992 | 3 | 0 |
| 1993 | 8 | 0 |
| 1994 | 3 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 9 | 0 |
| 1999 | 5 | 0 |
| 2000 | 7 | 0 |
| 2001 | 2 | 0 |
| 2002 | 5 | 6 |
| 2003 | 6 | 4 |
| 2004 | 4 | 6 |
| 2005 | 5 | 1 |
| 2006 | 3 | 7 |
| 2007 | 5 | 17 |
| 2008 | 7 | 10 |
| 2009 | 4 | 14 |
| 2010 | 6 | 15 |
| 2011 | 5 | 21 |
| 2012 | 3 | 12 |
| 2013 | 6 | 13 |
| 2014 | 10 | 12 |
| 2015 | 14 | 17 |
| 2016 | 11 | 16 |
| 2017 | 12 | 19 |
| 2018 | 14 | 24 |
| 2019 | 19 | 21 |
| 2020 | 19 | 25 |
| 2021 | 15 | 16 |
| 2022 | 17 | 10 |
| 2023 | 9 | 10 |
| 2024 | 7 | 7 |
| 2025 | 14 | 14 |
| 2026 | 5 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Heat pump systems and methods14 Jul 2026US 12,680,734 B2AtmosZero, Inc.
- Upturned electric control box mounting structure and heat pump device applying same23 Jun 2026US 12,666,560 B2Guangdong Aini Intelligent Household Electrical Appliance Manufacturing Co., Ltd.
- Methods and systems and apparatus to support reduced energy and water usage31 Mar 2026US 12,590,713 B2Octopus Energy Heating Limited
- Cold heat recovery system and marine vessel or floating body27 Jan 2026US 12,535,249 B2Mitsubishi Heavy Industries, Ltd.
- System and method for controlling a heat pump20 Jan 2026US 12,529,502 B2Fronius International GmbH
- Mixed component internally cascaded heat pump for industrial manufacturing applications1 Oct 2026US 2026/0298513 A1
- Heat pump24 Sep 2026US 2026/0287223 A1LG Electronics Inc.
- Heat Pump Systems and Methods17 Sep 2026US 2026/0276247 A1AtmosZero, Inc.
- Heat source unit of a heat pump20 Aug 2026US 2026/0243478 A1Daikin Europe N.V.
- Smart Fluid Heating Systems and Methods30 Jul 2026US 2026/0218917 A1Rheem Manufacturing Company
Most cited
By later US patents
- Combined ambient-air and earth exchange heat pump system141US 5,461,876 A1995
- Refrigeration-cycle device123US 6,347,528 B1Denso Corporation · 2002
- Geothermal heat transfer system116US 4,993,483 A1991
- Geothermal heat pump system116US 5,758,514 AEnvirotherm Heating & Cooling Systems, Inc. · 1998
- Geothermal heating and cooling system with solar heating115US 7,234,314 B1Earth to Air Systems, LLC · 2007