F24H 1/12
In which the water is kept separate from the heating medium
Official title: in which the water is kept separate from the heating medium
F24H1/12 (In which the water is kept separate from the heating medium) appears on 711 US grants and 900 published applications in this corpus.
Search patents in F24H- Granted patents
- 711
- Published applications
- 900
- Assignees
- 462
- Inventors
- 1,688
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 7 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 5 | 0 |
| 1985 | 5 | 0 |
| 1986 | 5 | 0 |
| 1987 | 0 | 0 |
| 1988 | 7 | 0 |
| 1989 | 7 | 0 |
| 1990 | 0 | 0 |
| 1991 | 5 | 0 |
| 1992 | 3 | 0 |
| 1993 | 7 | 0 |
| 1994 | 5 | 0 |
| 1995 | 5 | 0 |
| 1996 | 9 | 0 |
| 1997 | 2 | 0 |
| 1998 | 8 | 0 |
| 1999 | 3 | 0 |
| 2000 | 7 | 0 |
| 2001 | 6 | 0 |
| 2002 | 4 | 8 |
| 2003 | 5 | 13 |
| 2004 | 12 | 16 |
| 2005 | 14 | 7 |
| 2006 | 6 | 14 |
| 2007 | 8 | 9 |
| 2008 | 7 | 14 |
| 2009 | 8 | 18 |
| 2010 | 2 | 23 |
| 2011 | 6 | 34 |
| 2012 | 13 | 36 |
| 2013 | 20 | 52 |
| 2014 | 23 | 54 |
| 2015 | 31 | 65 |
| 2016 | 32 | 59 |
| 2017 | 52 | 46 |
| 2018 | 49 | 75 |
| 2019 | 50 | 53 |
| 2020 | 51 | 68 |
| 2021 | 43 | 56 |
| 2022 | 58 | 42 |
| 2023 | 33 | 32 |
| 2024 | 31 | 41 |
| 2025 | 21 | 35 |
| 2026 | 16 | 30 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Water heater having highly efficient and compact heat exchanger6 Oct 2026US RE51,053 E1A. O. Smith Corporation
- Heat exchanger and hot water apparatus including heat exchanger8 Sep 2026US 12,729,878 B2Noritz Corporation
- Burner and water heater comprising same25 Aug 2026US 12,716,615 B2Kyungdong Navien Co., Ltd.
- Hot water tank and flow through heating assembly23 Jun 2026US 12,663,181 B2National Machine Company
- Heating device for liquids2 Jun 2026US 12,644,625 B2Reflexy Nederland B.V.
- Flow Through Heaters and Methods of Manufacture Thereof8 Oct 2026US 2026/0309364 A1Otter Controls Limited
- Pressurized tankless boiler system and appartus8 Oct 2026US 2026/0309365 A1Phoenix Heating Services
- Heating device for a steam generator8 Oct 2026US 2026/0309366 A1Yuyao Hengxi Technology Co., Ltd.
- System and method for cleaning windows and lenses in automotive applications1 Oct 2026US 2026/0296374 A1Uusi, LLC
- Premixer assembly and combustion device including the same24 Sep 2026US 2026/0287171 A1Noritz Corporation
Most cited
By later US patents
- In-line fluid heating apparatus with gradation of heat energy from inlet to outlet313US 5,381,510 AIn-Touch Products Co. · 1995
- Thermal treatment apparatus310US 5,549,559 AArgomed Ltd. · 1996
- Parenteral fluid warmer apparatus and disposable cassette utilizing thin, flexible heat-exchange membrane291US 5,245,693 AIn-Touch Products Co. · 1993
- Window cleaning fluid heating system having timer-controlled heater and differential input circuit280US 5,354,965 AGensonic, Inc. · 1994
- Apparatus and method for making flexible tubing with helically wound heating conductor153US 5,454,061 ASteward Plastics, Inc. · 1995