F24H 1/14
By tubes
Official title: by tubes, e.g. bent in serpentine form
F24H1/14 (By tubes) appears on 432 US grants and 543 published applications in this corpus.
Search patents in F24H- Granted patents
- 432
- Published applications
- 543
- Assignees
- 283
- Inventors
- 1,050
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 6 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 0 | 0 |
| 1988 | 5 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 6 | 0 |
| 2001 | 6 | 0 |
| 2002 | 3 | 4 |
| 2003 | 3 | 8 |
| 2004 | 7 | 7 |
| 2005 | 5 | 5 |
| 2006 | 4 | 10 |
| 2007 | 7 | 7 |
| 2008 | 4 | 11 |
| 2009 | 6 | 13 |
| 2010 | 0 | 15 |
| 2011 | 5 | 21 |
| 2012 | 10 | 20 |
| 2013 | 12 | 30 |
| 2014 | 12 | 33 |
| 2015 | 15 | 37 |
| 2016 | 21 | 45 |
| 2017 | 35 | 30 |
| 2018 | 31 | 43 |
| 2019 | 35 | 35 |
| 2020 | 30 | 37 |
| 2021 | 26 | 33 |
| 2022 | 36 | 22 |
| 2023 | 18 | 18 |
| 2024 | 15 | 22 |
| 2025 | 12 | 21 |
| 2026 | 10 | 16 |
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.
- Heating device for liquids2 Jun 2026US 12,644,625 B2Reflexy Nederland B.V.
- Electric boiler5 May 2026US 12,618,589 B2
- 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
- Electric heater for vehicle6 Aug 2026US 2026/0227093 A1I.R.C.A. S.P.A. Industria Resistenze Corazzate E Affini
- Electric heater for vehicle6 Aug 2026US 2026/0227094 A1I.R.C.A. S.P.A. Industria Resistenze Corazzate E Affini
Most cited
By later US patents
- Apparatus and method for making flexible tubing with helically wound heating conductor153US 5,454,061 ASteward Plastics, Inc. · 1995
- Liquid heater assembly102US 5,724,478 ATruHeat Corporation · 1998
- Generating and using checkpoints in a virtual computer system93US 7,529,897 B1VMware, Inc. · 2009
- Apparatus and method for making flexible tubing with helically wound heating conductor91US 5,637,168 ASteward Plastics, Inc. · 1997
- Double-walled flexible tubing product with helical support bead and heating conductor and apparatus and method for making82US 5,848,223 ASteward Plastics, Inc. · 1998