F24H 6/00
Combined water and air heaters
F24H6/00 (Combined water and air heaters) appears on 106 US grants and 113 published applications in this corpus.
Search patents in F24H- Granted patents
- 106
- Published applications
- 113
- Assignees
- 60
- Inventors
- 246
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 5 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 3 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 0 | 2 |
| 2011 | 0 | 9 |
| 2012 | 1 | 5 |
| 2013 | 1 | 5 |
| 2014 | 4 | 11 |
| 2015 | 5 | 1 |
| 2016 | 4 | 8 |
| 2017 | 3 | 3 |
| 2018 | 6 | 3 |
| 2019 | 4 | 8 |
| 2020 | 3 | 6 |
| 2021 | 5 | 4 |
| 2022 | 6 | 9 |
| 2023 | 2 | 4 |
| 2024 | 2 | 15 |
| 2025 | 4 | 6 |
| 2026 | 6 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Air heating apparatus and method for disassembling air heating apparatus1 Sep 2026US 12,723,777 B2Kyungdong Navien Co., Ltd.
- Device for heating room air and a liquid1 Sep 2026US 12,723,779 B2Truma Geraetetechnik GmbH & Co. KG
- Method for producing a heating device, and heating device16 Jun 2026US 12,656,020 B2Truma Gerätetechnik GmbH & Co. KG
- Air heating apparatus9 Jun 2026US 12,650,243 B2Kyungdong Navien Co., Ltd.
- Air heating apparatus12 May 2026US 12,624,844 B2Kyungdong Navien Co., Ltd.
- Air heating apparatus17 Sep 2026US 2026/0276241 A1Kyungdong Navien Co., Ltd.
- Air heating apparatus27 Aug 2026US 2026/0251318 A1Kyungdong Navien Co., Ltd.
- Heating system with heat pump for internal installation13 Aug 2026US 2026/0235308 A1Innova, Inc.
- Air conditioning system using heat pump and air heating device4 Jun 2026US 2026/0153244 A1Kyungdong Navien Co., Ltd.
- A device for heating air and a liquid30 Apr 2026US 2026/0118015 A1Truma Geraetetechnik GmbH & Co. KG
Most cited
By later US patents
- Heater for heating flows of fluid and dishwashing machine provided therewith64US 4,326,552 A1982
- Combined heating and hot water system55US 6,612,267 B1Vebteck Research Inc. · 2003
- Combination water heating and space heating apparatus52US 5,544,645 ALennox Industries Inc. · 1996
- Unified hot water and forced air heating system45US 4,178,907 A1979
- Space heater heat recovery system29US 4,210,102 A1980