H05B 3/748
Resistive heating elements, i.e. heating elements exposed to the air
Official title: {Resistive heating elements, i.e. heating elements exposed to the air, e.g. coil wire heater (H05B3/742 takes precedence)}
H05B3/748 (Resistive heating elements, i.e. heating elements exposed to the air) appears on 225 US grants and 137 published applications in this corpus.
Search patents in H05B- Granted patents
- 225
- Published applications
- 137
- Assignees
- 86
- Inventors
- 269
- Latest grant
- 15 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 6 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 7 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 8 | 0 |
| 1989 | 5 | 0 |
| 1990 | 6 | 0 |
| 1991 | 9 | 0 |
| 1992 | 3 | 0 |
| 1993 | 6 | 0 |
| 1994 | 2 | 0 |
| 1995 | 7 | 0 |
| 1996 | 6 | 0 |
| 1997 | 1 | 0 |
| 1998 | 6 | 0 |
| 1999 | 9 | 0 |
| 2000 | 10 | 0 |
| 2001 | 14 | 6 |
| 2002 | 5 | 4 |
| 2003 | 0 | 2 |
| 2004 | 1 | 10 |
| 2005 | 3 | 10 |
| 2006 | 5 | 4 |
| 2007 | 4 | 3 |
| 2008 | 4 | 2 |
| 2009 | 1 | 3 |
| 2010 | 2 | 1 |
| 2011 | 0 | 1 |
| 2012 | 2 | 2 |
| 2013 | 2 | 2 |
| 2014 | 1 | 0 |
| 2015 | 3 | 2 |
| 2016 | 0 | 3 |
| 2017 | 3 | 7 |
| 2018 | 6 | 8 |
| 2019 | 6 | 9 |
| 2020 | 5 | 18 |
| 2021 | 6 | 12 |
| 2022 | 11 | 8 |
| 2023 | 11 | 10 |
| 2024 | 9 | 5 |
| 2025 | 4 | 1 |
| 2026 | 0 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Heater for a vapor provision system15 Jul 2025US 12,357,026 B2Nicoventures Trading Limited
- Electric heater and cooking appliance having same25 Mar 2025US 12,259,143 B2LG Electronics Inc.
- Bake devices for handling and uniform baking of substrates11 Feb 2025US 12,225,641 B2APPLIED Materials.Inc.
- Electric heater and cooking appliance having same4 Feb 2025US 12,215,873 B2LG Electronics Inc.
- Method for manufacturing an electrical heating device31 Dec 2024US 12,185,436 B2TüRk & Hillinger GmbH
- Laboratory device having a heating function17 Sep 2026US 2026/0273533 A1IKA-Werke GmbH & Co. KG
- Heating tray6 Aug 2026US 2026/0224067 A1OnKey Electronic Technology Co.,Ltd
- Cooking appliance and method for closed-loop cooking operation23 Jul 2026US 2026/0210559 A1Haier US Appliance Solutions, Inc.
- Auxiliary heating assembly with compliant connection component23 Apr 2026US 2026/0113817 A1Whirlpool Corporation
- Heater unit22 May 2025US 2025/0168934 A1NHK Spring Co., Ltd.
Most cited
By later US patents
- Beverage warmer90US 4,523,083 AHamilton-Dunn Research Co. · 1985
- Thick film electrically resistive tracks60US 5,177,341 AThorn EMI plc · 1993
- Heater for use in substrate processing48US 6,278,089 B1APPLIED Materials.Inc. · 2001
- Thin film heating assemblies43US 6,037,572 AWhite Consolidated Industries, Inc. · 2000
- Food serving system40US 4,145,603 ATeledyne Industries, Inc. · 1979