F24H 4/06
Air heaters
F24H4/06 (Air heaters) appears on 23 US grants and 27 published applications in this corpus.
Search patents in F24H- Granted patents
- 23
- Published applications
- 27
- Assignees
- 24
- Inventors
- 72
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 2 |
| 2015 | 0 | 0 |
| 2016 | 0 | 5 |
| 2017 | 1 | 0 |
| 2018 | 3 | 1 |
| 2019 | 3 | 0 |
| 2020 | 1 | 3 |
| 2021 | 1 | 3 |
| 2022 | 0 | 0 |
| 2023 | 1 | 1 |
| 2024 | 3 | 1 |
| 2025 | 0 | 5 |
| 2026 | 1 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Dishwasher including heat pump apparatus28 Jul 2026US 12,690,746 B2LG Electronics Inc.
- On-demand heat pump water heater24 Dec 2024US 12,173,929 B2Rheem Manufacturing Company
- Heating unit with a partition5 Mar 2024US 11,920,831 B2Johnson Controls Tyco IP Holdings LLP
- Air conditioning system23 Jan 2024US 11,879,650 B2Daikin Industries, Ltd.
- On-demand heat pump water heater17 Oct 2023US 11,788,769 B2Rheem Manufacturing Company
- Heating system with heat pump for internal installation13 Aug 2026US 2026/0235308 A1Innova, Inc.
- Hot water supply air-conditioning system, method of controlling hot water supply air-conditioning system, and control apparatus23 Jul 2026US 2026/0210569 A1Daikin Industries, Ltd.
- Heat pump with refrigerant detection and temperature-based operation25 Jun 2026US 2026/0177295 A1Mitsubishi Electric US, Inc.
- Outdoor air-to-air heat pump installation with thermally insulated condenser chamber11 Jun 2026US 2026/0160456 A1ZK Varme AS
- Dishwasher including heat pump apparatus26 Feb 2026US 2026/0053328 A1LG Electronics Inc.
Most cited
By later US patents
- Apparatus suited for ventilating rooms contaminated with infectious disease organisms114US 5,761,908 AAir Quality Engineering · 1998
- Integrated heat pump and water heating circuit25US 10,345,004 B1Climate Master, Inc. · 2019
- Device in the thermoelectric heaters/coolers25US 5,282,364 A1994
- Air conditioning apparatus which selectively carries out a refrigerant collection operation13US 5,174,365 AKabushiki Kaisha Toshiba · 1992
- Air conditioner having high heating capacity13US 5,370,307 AGas Research Institute · 1994