H01F 2038/003
High frequency transformer for microwave oven
Official title: {High frequency transformer for microwave oven}
H01F2038/003 (High frequency transformer for microwave oven) appears on 23 US grants and 12 published applications in this corpus.
Search patents in H01F- Granted patents
- 23
- Published applications
- 12
- Assignees
- 16
- Inventors
- 51
- Latest grant
- 8 Aug 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 4 |
| 2005 | 3 | 0 |
| 2006 | 2 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 3 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 2 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- High voltage high frequency transformer8 Aug 2023US 11,721,477 B2Raytheon Company
- High voltage high frequency transformer4 Jul 2023US 11,694,832 B2Raytheon Company
- High voltage high frequency transformer2 Jun 2020US 10,672,553 B2Raytheon Company
- Booster transformer for driving magnetron and transformer unit having the booster transformer19 May 2009US 7,535,331 B2Panasonic Corporation
- Magnetron27 Jun 2006US 7,067,782 B2Matsushita Electric Industrial Co., Ltd.
- High frequency medium voltage transformer with central insulating divider20 Jul 2023US 2023/0230762 A1Utah State University
- High-frequency transformer and applications thereof15 Jun 2023US 2023/0187126 A1Griffith University
- High voltage high frequency transformer6 Aug 2020US 2020/0251270 A1Raytheon Company
- High voltage high frequency transformer6 Aug 2020US 2020/0251271 A1Raytheon Company
- High voltage high frequency transformer6 Aug 2020US 2020/0251275 A1Raytheon Company
Most cited
By later US patents
- Robotic process planning method and apparatus using templates167US 6,292,715 B1Perry Investments, Inc. · 2001
- Inductive heating coil49US 5,208,433 ARotelec S. A. · 1993
- High level language-based robotic control system41US 5,303,384 AThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 1994
- Magnetron drive step-up transformer and transformer of magnetron drive power supply19US 6,449,178 B1Matsushita Electric Industrial Co., Ltd. · 2002
- Magnetron drive apparatus17US 4,858,095 AKabushiki Kaisha Toshiba · 1989