H05B 3/82
Fixedly-mounted immersion heaters
H05B3/82 (Fixedly-mounted immersion heaters) appears on 288 US grants and 243 published applications in this corpus.
Search patents in H05B- Granted patents
- 288
- Published applications
- 243
- Assignees
- 200
- Inventors
- 647
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 5 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 5 | 0 |
| 1984 | 2 | 0 |
| 1985 | 8 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 5 | 0 |
| 1992 | 8 | 0 |
| 1993 | 7 | 0 |
| 1994 | 6 | 0 |
| 1995 | 11 | 0 |
| 1996 | 6 | 0 |
| 1997 | 6 | 0 |
| 1998 | 13 | 0 |
| 1999 | 10 | 0 |
| 2000 | 8 | 0 |
| 2001 | 10 | 2 |
| 2002 | 8 | 5 |
| 2003 | 6 | 4 |
| 2004 | 2 | 4 |
| 2005 | 1 | 3 |
| 2006 | 3 | 2 |
| 2007 | 2 | 10 |
| 2008 | 3 | 2 |
| 2009 | 1 | 9 |
| 2010 | 4 | 6 |
| 2011 | 4 | 8 |
| 2012 | 3 | 5 |
| 2013 | 6 | 5 |
| 2014 | 2 | 3 |
| 2015 | 5 | 9 |
| 2016 | 5 | 11 |
| 2017 | 9 | 10 |
| 2018 | 6 | 16 |
| 2019 | 14 | 15 |
| 2020 | 9 | 23 |
| 2021 | 6 | 25 |
| 2022 | 12 | 18 |
| 2023 | 11 | 11 |
| 2024 | 10 | 14 |
| 2025 | 9 | 15 |
| 2026 | 5 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Heater bundles having variable power output within zones22 Sep 2026US 12,742,570 B2Watlao Electric Manufacturing Company
- Heating element with open-cell structure4 Aug 2026US 12,701,640 B2Kanthal AB
- Graphene heater for oil tank of oil field9 Jun 2026US 12,652,727 B2
- Heater bundles having virtual sensing for thermal gradient compensation24 Feb 2026US 12,560,356 B2Watlow Electric Manufacturing Company
- Heater bundles with local power switching3 Feb 2026US 12,540,757 B2Watlow Electric Manufacturing Company
- Heating apparatus8 Oct 2026US 2026/0307460 A1Aisan Kogyo Kabushiki Kaisha
- Liquid heating device27 Aug 2026US 2026/0251351 A1Toshiba Lighting & Technology Corporation
- Liquid heater module23 Jul 2026US 2026/0214756 A1Lloyds IP Holdings, LLC
- Fluid heating device16 Jul 2026US 2026/0202091 A1Toshiba Lighting & Technology Corporation
- Liquid heating device21 May 2026US 2026/0139872 A1Niterra Co., Ltd.
Most cited
By later US patents
- Deep well cooker with dual heating elements134US 6,515,262 B12003
- Portable cup for warming beverages85US 5,508,494 A1996
- Humidifier with liquid level control80US 5,329,939 ACimco, Inc. · 1994
- Thermo-plastic heat exchanger79US 5,216,743 A1993
- Energy saving water heater control75US 6,350,967 B1American Water Heater Company · 2002