F24H 1/44
With combinations of two or more of the types covered by groups
Official title: with combinations of two or more of the types covered by groups F24H1/24 - F24H1/40
F24H1/44 (With combinations of two or more of the types covered by groups) appears on 103 US grants and 90 published applications in this corpus.
Search patents in F24H- Granted patents
- 103
- Published applications
- 90
- Assignees
- 61
- Inventors
- 201
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 0 |
| 2002 | 3 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 3 |
| 2009 | 1 | 2 |
| 2010 | 1 | 4 |
| 2011 | 1 | 2 |
| 2012 | 3 | 2 |
| 2013 | 2 | 2 |
| 2014 | 2 | 10 |
| 2015 | 0 | 6 |
| 2016 | 2 | 6 |
| 2017 | 4 | 4 |
| 2018 | 7 | 16 |
| 2019 | 6 | 8 |
| 2020 | 10 | 3 |
| 2021 | 8 | 5 |
| 2022 | 3 | 7 |
| 2023 | 4 | 2 |
| 2024 | 2 | 4 |
| 2025 | 1 | 3 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Immersion cooling system with phoretic force particulate collection30 Jun 2026US 12,672,256 B2Intel Corporation
- Boiler for making hot water and room heating water available simultaneously17 Mar 2026US 12,578,120 B2
- Heat exchanger unit17 Jun 2025US 12,331,959 B2Kyungdong Navien Co., Ltd.
- Heat exchanger unit and method for manufacturing the same29 Oct 2024US 12,130,052 B2Kyungdong Navien Co., Ltd.
- Heat exchanger unit23 Jan 2024US 11,879,666 B2Kyungdong Navien Co., Ltd.
- Boiler, in particular a condensing boiler, comprising a heat exchanger27 Nov 2025US 2025/0362056 A1RIELLO S.p.A.
- Heat exchanger unit4 Sep 2025US 2025/0277602 A1Kyungdong Navien Co., Ltd.
- Water heater15 May 2025US 2025/0155162 A1Kyungdong Navien Co., Ltd.
- Heat exchanger assembly and water heater12 Dec 2024US 2024/0410617 A1Wuhu Midea Smart Kitchen Appliance Manufacturing Co., Ltd.
- Heat exchanger unit and method for manufacturing the same17 Oct 2024US 2024/0344738 A1Kyungdong Navien Co., Ltd.
Most cited
By later US patents
- Advanced emissive matrix combustion46US 6,159,001 AThe Quantum Group, Inc. · 2000
- Fuel efficient rapid response water heating module30US 4,993,402 ACarrier Corporation · 1991
- Vertical feed stick wood fuel burning furnace system16US 4,309,965 ABoard of Trustees of the University of Maine · 1982
- Heating system16US 4,479,605 A1984
- Instant hot water boiler structure16US 5,775,267 A1998