H05B 3/62
Heating elements specially adapted for furnaces
Official title: Heating elements specially adapted for furnaces (H05B3/60 takes precedence; arrangements of elements for electric heating in or on furnaces using ohmic resistance heating F27D11/02)
H05B3/62 (Heating elements specially adapted for furnaces) appears on 329 US grants and 188 published applications in this corpus.
Search patents in H05B- Granted patents
- 329
- Published applications
- 188
- Assignees
- 246
- Inventors
- 632
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 11 | 0 |
| 1978 | 10 | 0 |
| 1979 | 10 | 0 |
| 1980 | 10 | 0 |
| 1981 | 13 | 0 |
| 1982 | 9 | 0 |
| 1983 | 11 | 0 |
| 1984 | 9 | 0 |
| 1985 | 8 | 0 |
| 1986 | 10 | 0 |
| 1987 | 7 | 0 |
| 1988 | 5 | 0 |
| 1989 | 7 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 11 | 0 |
| 1993 | 6 | 0 |
| 1994 | 8 | 0 |
| 1995 | 7 | 0 |
| 1996 | 4 | 0 |
| 1997 | 7 | 0 |
| 1998 | 3 | 0 |
| 1999 | 8 | 0 |
| 2000 | 8 | 0 |
| 2001 | 2 | 1 |
| 2002 | 5 | 2 |
| 2003 | 2 | 4 |
| 2004 | 3 | 5 |
| 2005 | 4 | 6 |
| 2006 | 5 | 8 |
| 2007 | 1 | 3 |
| 2008 | 1 | 1 |
| 2009 | 3 | 2 |
| 2010 | 2 | 8 |
| 2011 | 1 | 4 |
| 2012 | 3 | 5 |
| 2013 | 4 | 5 |
| 2014 | 2 | 4 |
| 2015 | 6 | 7 |
| 2016 | 4 | 10 |
| 2017 | 4 | 15 |
| 2018 | 7 | 12 |
| 2019 | 10 | 9 |
| 2020 | 10 | 9 |
| 2021 | 10 | 5 |
| 2022 | 4 | 17 |
| 2023 | 10 | 5 |
| 2024 | 11 | 15 |
| 2025 | 10 | 14 |
| 2026 | 2 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for providing a rotating shaft into a high pressure, high temperature furnace1 Sep 2026US 12,723,814 B2The Florida State University Research Foundation, Inc.
- Method for providing a rotating shaft into a high pressure, high temperature furnace1 Sep 2026US 12,723,815 B2The Florida State University Research Foundation, Inc.
- Solid formations of non-volatile bituminous materials suitable for reducing carbon dioxide emissions during transport16 Dec 2025US 12,497,566 B2Philergos Group Foundation
- Heater in hot-zone of single crystal pulling apparatus and single crystal pulling apparatus2 Dec 2025US 12,486,592 B2Xi'an Eswin Material Technology Co., Ltd.
- Moving heating element18 Nov 2025US 12,474,067 B2
- Method for providing a rotating shaft into a high pressure, high temperature furnace24 Sep 2026US 2026/0287260 A1The Florida State University Research Foundation, Inc.
- Method for providing a rotating shaft into a high pressure, high temperature furnace24 Sep 2026US 2026/0287261 A1The Florida State University Research Foundation, Inc.
- Electric furnace with thermal profile management & methods of steam cracking with electric furnace17 Sep 2026US 2026/0275202 A1Sabic Global Technologies B.V.
- Adaptable Heating Element System for a Fluid Heater20 Aug 2026US 2026/0247500 A1
- Furnace2 Jul 2026US 2026/0184657 A1Inovyn Europe Limited
Most cited
By later US patents
- Heat treating apparatus with cooling fluid nozzles392US 5,097,890 ATel Sagami Limited · 1992
- Hanging heating element for high temperature furnace89US 5,157,242 AHetherington, Inc. · 1992
- Immersion heater for molten metal74US 9,108,244 B22015
- Immersion heater for molten metal66US 9,481,035 B2Molten Metal Equipment Innovations, LLC · 2016
- Infrared radiation generating ceramic compositions50US 5,707,911 AMitech Scientific Corp. · 1998