F24H 1/10
Continuous-flow heaters, i.e. heaters in which heat is generated only while the
Official title: Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
F24H1/10 (Continuous-flow heaters, i.e. heaters in which heat is generated only while the) appears on 1,243 US grants and 1,498 published applications in this corpus.
Search patents in F24H- Granted patents
- 1,243
- Published applications
- 1,498
- Assignees
- 744
- Inventors
- 2,805
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 6 | 0 |
| 1978 | 7 | 0 |
| 1979 | 10 | 0 |
| 1980 | 8 | 0 |
| 1981 | 6 | 0 |
| 1982 | 10 | 0 |
| 1983 | 9 | 0 |
| 1984 | 13 | 0 |
| 1985 | 10 | 0 |
| 1986 | 15 | 0 |
| 1987 | 2 | 0 |
| 1988 | 15 | 0 |
| 1989 | 11 | 0 |
| 1990 | 6 | 0 |
| 1991 | 7 | 0 |
| 1992 | 9 | 0 |
| 1993 | 12 | 0 |
| 1994 | 10 | 0 |
| 1995 | 13 | 0 |
| 1996 | 13 | 0 |
| 1997 | 6 | 0 |
| 1998 | 19 | 0 |
| 1999 | 15 | 0 |
| 2000 | 13 | 0 |
| 2001 | 13 | 0 |
| 2002 | 11 | 18 |
| 2003 | 11 | 18 |
| 2004 | 18 | 26 |
| 2005 | 24 | 20 |
| 2006 | 17 | 23 |
| 2007 | 13 | 17 |
| 2008 | 10 | 18 |
| 2009 | 11 | 29 |
| 2010 | 10 | 35 |
| 2011 | 13 | 49 |
| 2012 | 23 | 58 |
| 2013 | 26 | 80 |
| 2014 | 40 | 92 |
| 2015 | 44 | 99 |
| 2016 | 48 | 93 |
| 2017 | 88 | 67 |
| 2018 | 69 | 95 |
| 2019 | 72 | 82 |
| 2020 | 77 | 109 |
| 2021 | 57 | 96 |
| 2022 | 89 | 86 |
| 2023 | 58 | 70 |
| 2024 | 56 | 76 |
| 2025 | 50 | 88 |
| 2026 | 37 | 54 |
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
- Electric fluid heater22 Sep 2026US 12,742,569 B2Digital Heat Ltd.
- Heater bundles having variable power output within zones22 Sep 2026US 12,742,570 B2Watlao Electric Manufacturing Company
- Heater and heating pool15 Sep 2026US 12,736,254 B2Oriental Recreational Products (Shanghai) Co., Ltd
- Heat exchanger and hot water apparatus including heat exchanger8 Sep 2026US 12,729,878 B2Noritz Corporation
- 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.
- Smart electric heater for bathing installations8 Oct 2026US 2026/0309370 A1Balboa Water Group, Inc.
- System and method for cleaning windows and lenses in automotive applications1 Oct 2026US 2026/0296374 A1Uusi, LLC
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