F24H 15/407
Using electrical switching
Official title: using electrical switching, e.g. TRIAC
F24H15/407 (Using electrical switching) appears on 184 US grants and 192 published applications in this corpus.
Search patents in F24H- Granted patents
- 184
- Published applications
- 192
- Assignees
- 123
- Inventors
- 419
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 6 | 3 |
| 2002 | 4 | 2 |
| 2003 | 6 | 1 |
| 2004 | 3 | 4 |
| 2005 | 2 | 3 |
| 2006 | 4 | 10 |
| 2007 | 2 | 7 |
| 2008 | 2 | 1 |
| 2009 | 5 | 7 |
| 2010 | 2 | 6 |
| 2011 | 3 | 4 |
| 2012 | 6 | 6 |
| 2013 | 6 | 5 |
| 2014 | 3 | 10 |
| 2015 | 3 | 10 |
| 2016 | 9 | 7 |
| 2017 | 7 | 7 |
| 2018 | 5 | 17 |
| 2019 | 13 | 12 |
| 2020 | 8 | 8 |
| 2021 | 7 | 14 |
| 2022 | 9 | 9 |
| 2023 | 6 | 6 |
| 2024 | 6 | 7 |
| 2025 | 9 | 14 |
| 2026 | 3 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Water heater device with TRIAC and method of use19 May 2026US 12,631,370 B2
- Water heater controller7 Apr 2026US 12,595,934 B2Rheem Australia Pty Limited
- Heater bundles with local power switching3 Feb 2026US 12,540,757 B2Watlow Electric Manufacturing Company
- Devices for ohmically heating a fluid2 Dec 2025US 12,490,347 B2OhmIQ, Inc.
- Encapsulated bus circuit for fluid heating systems25 Nov 2025US 12,480,686 B2Watlow Electric Manufacturing Company
- Smart electric heater for bathing installations8 Oct 2026US 2026/0309370 A1Balboa Water Group, Inc.
- Boost Heat Pump Water Heater3 Sep 2026US 2026/0258970 A1Rheem Manufacturing Company
- Water heater and methods for operating the same3 Sep 2026US 2026/0258978 A1Bradford White Corporation
- Water heater and methods for operating the same3 Sep 2026US 2026/0258979 A1Bradford White Corporation
- Electric heater for vehicle6 Aug 2026US 2026/0227093 A1I.R.C.A. S.P.A. Industria Resistenze Corazzate E Affini
Most cited
By later US patents
- Fluid heating control system199US 6,246,831 B1David Seitz · 2001
- Microprocessor controlled tankless water heater system129US 5,504,306 AChronomite Laboratories, Inc. · 1996
- Domestic electric energy control104US 5,956,462 AAquabeat Pty Ltd. · 1999
- Control system for bathers94US 6,590,188 B2Balboa Instruments, Inc. · 2003
- Control system for bathers93US 6,282,370 B1Balboa Instruments, Inc. · 2001