F26B 3/347
Electromagnetic heating
Official title: Electromagnetic heating, e.g. induction heating or heating using microwave energy
F26B3/347 (Electromagnetic heating) appears on 334 US grants and 320 published applications in this corpus.
Search patents in F26B- Granted patents
- 334
- Published applications
- 320
- Assignees
- 217
- Inventors
- 770
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 5 | 0 |
| 1982 | 2 | 0 |
| 1983 | 8 | 0 |
| 1984 | 7 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 5 | 0 |
| 1992 | 5 | 0 |
| 1993 | 8 | 0 |
| 1994 | 5 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 9 | 0 |
| 2000 | 5 | 0 |
| 2001 | 5 | 0 |
| 2002 | 10 | 5 |
| 2003 | 7 | 5 |
| 2004 | 3 | 9 |
| 2005 | 0 | 9 |
| 2006 | 7 | 6 |
| 2007 | 3 | 6 |
| 2008 | 2 | 8 |
| 2009 | 1 | 7 |
| 2010 | 2 | 13 |
| 2011 | 7 | 10 |
| 2012 | 3 | 20 |
| 2013 | 10 | 15 |
| 2014 | 8 | 11 |
| 2015 | 9 | 14 |
| 2016 | 16 | 16 |
| 2017 | 16 | 18 |
| 2018 | 13 | 21 |
| 2019 | 26 | 17 |
| 2020 | 14 | 18 |
| 2021 | 19 | 22 |
| 2022 | 14 | 20 |
| 2023 | 20 | 14 |
| 2024 | 6 | 12 |
| 2025 | 11 | 16 |
| 2026 | 6 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Apparatus and method of microwave vacuum drying sterile products18 Aug 2026US 12,710,229 B2Merck Sharp & Dohme Corp.
- Food waste dehydrator apparatus and methods of use9 Jun 2026US 12,650,262 B2
- Continuous microwave drying for vaccines24 Mar 2026US 12,584,687 B2
- Device with a microwave shielding container17 Mar 2026US 12,581,627 B2Sharp Kabushiki Kaisha
- Induction heating system for a dryer appliance27 Jan 2026US 12,534,848 B2Haier US Appliance Solutions, Inc.
- Drying method by drying device, drying device, and recording device23 Jul 2026US 2026/0208506 A1Seiko Epson Corporation
- Plastic drying device18 Jun 2026US 2026/0168727 A1Mitsubishi Electric Corporation
- Device and method for pressboard manufacturing30 Apr 2026US 2026/0115963 A1Hitachi Energy Ltd
- Drying device and recording device30 Apr 2026US 2026/0116090 A1Seiko Epson Corporation
- Drying apparatus and method for controlling same23 Apr 2026US 2026/0110484 A1Samsung Electronics Co., Ltd.
Most cited
By later US patents
- Drying apparatus and methods and accessories for use therewith84US 8,839,527 B2Goji Limited · 2014
- High efficiency material drying55US 4,330,946 A1982
- Apparatus and method for heating, thawing and/or demoisturizing materials and/or objects52US 4,370,534 A1983
- Microwave oven cooking method48US 4,390,555 A1983
- Microwave heating of certain frozen foods45US 4,390,554 A1983