F24H 1/40
With water tube or tubes
Official title: with water tube or tubes
F24H1/40 (With water tube or tubes) appears on 395 US grants and 277 published applications in this corpus.
Search patents in F24H- Granted patents
- 395
- Published applications
- 277
- Assignees
- 207
- Inventors
- 685
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 9 | 0 |
| 1978 | 4 | 0 |
| 1979 | 6 | 0 |
| 1980 | 6 | 0 |
| 1981 | 6 | 0 |
| 1982 | 9 | 0 |
| 1983 | 11 | 0 |
| 1984 | 10 | 0 |
| 1985 | 9 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 8 | 0 |
| 1989 | 5 | 0 |
| 1990 | 9 | 0 |
| 1991 | 7 | 0 |
| 1992 | 6 | 0 |
| 1993 | 6 | 0 |
| 1994 | 10 | 0 |
| 1995 | 7 | 0 |
| 1996 | 6 | 0 |
| 1997 | 5 | 0 |
| 1998 | 8 | 0 |
| 1999 | 4 | 0 |
| 2000 | 16 | 0 |
| 2001 | 8 | 1 |
| 2002 | 6 | 1 |
| 2003 | 10 | 7 |
| 2004 | 3 | 5 |
| 2005 | 3 | 3 |
| 2006 | 3 | 10 |
| 2007 | 3 | 11 |
| 2008 | 4 | 11 |
| 2009 | 4 | 6 |
| 2010 | 10 | 14 |
| 2011 | 4 | 11 |
| 2012 | 2 | 12 |
| 2013 | 7 | 8 |
| 2014 | 8 | 12 |
| 2015 | 10 | 14 |
| 2016 | 7 | 10 |
| 2017 | 8 | 18 |
| 2018 | 14 | 28 |
| 2019 | 18 | 19 |
| 2020 | 13 | 14 |
| 2021 | 14 | 13 |
| 2022 | 14 | 13 |
| 2023 | 14 | 14 |
| 2024 | 9 | 15 |
| 2025 | 11 | 4 |
| 2026 | 6 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Condensation heat exchanger7 Jul 2026US 12,674,602 B2Sermeta
- Boiler for making hot water and room heating water available simultaneously17 Mar 2026US 12,578,120 B2
- Integrated anode for a heat exchanger17 Feb 2026US 12,553,644 B2Rheem Manufacturing Company
- Heat exchanger for heating devices, and tube-assembly module for a heat exchanger10 Feb 2026US 12,546,510 B2Clada S.R.L.
- System for producing heat for domestic hot water or central heating3 Feb 2026US 12,540,737 B2Daikin Europe N.V.
- Integrated Anode For A Heat Exchanger18 Jun 2026US 2026/0168701 A1Rheem Manufacturing Company
- Fired process heater with a manifold support assembly11 Jun 2026US 2026/0160415 A1Zeeco, Inc.
- Instantaneous water heater12 Feb 2026US 2026/0043582 A1
- 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.
Most cited
By later US patents
- Oil-fired frac water heater92US 8,534,235 B22013
- Gas water heater/boiler62US 4,793,800 ALochinvar Water Heater Corporation · 1988
- Heating apparatus55US 7,647,897 B2Noritz Corporation · 2010
- High efficiency commercial water heater53US 5,687,678 AWeben-Jarco, Inc. · 1997
- Freezer rail talker52US 3,977,109 ALitho-Paint Poster Company · 1976