H01J 23/213
Simultaneous tuning of more than one resonator
Official title: Simultaneous tuning of more than one resonator, e.g. resonant cavities of a magnetron
H01J23/213 (Simultaneous tuning of more than one resonator) appears on 52 US grants and 20 published applications in this corpus.
Search patents in H01J- Granted patents
- 52
- Published applications
- 20
- Assignees
- 31
- Inventors
- 83
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
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| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 4 |
| 2003 | 5 | 2 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 1 | 2 |
| 2012 | 0 | 2 |
| 2013 | 1 | 0 |
| 2014 | 1 | 2 |
| 2015 | 1 | 0 |
| 2016 | 1 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 2 |
| 2022 | 0 | 2 |
| 2023 | 2 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Radiotherapy device and microwave source thereof12 May 2026US 12,623,089 B2Shanghai United Imaging Healthcare Co., Ltd.
- Resonator coil having an asymmetrical profile25 Jul 2023US 11,710,617 B2APPLIED Materials.Inc.
- Multi-cathode magnetron with internal electromagnetic field coupling24 Jan 2023US 11,562,873 B2Tsinghua University
- Resonator coil having an asymmetrical profile17 Aug 2021US 11,094,504 B2APPLIED Materials.Inc.
- Magnetron26 Dec 2017US 9,852,872 B2Toshiba Hokuto Electronics Corporation
- Radiotherapy device and microwave source thereof6 Oct 2022US 2022/0314018 A1Shanghai United Imaging Healthcare Co., Ltd.
- Magnetron20 Jan 2022US 2022/0020553 A1Tsinghua University
- Resonator coil having an asymmetrical profile4 Nov 2021US 2021/0343500 A1APPLIED Materials.Inc.
- Resonator coil having an asymmetrical profile8 Jul 2021US 2021/0210307 A1APPLIED Materials.Inc.
- Magnetron16 Jun 2016US 2016/0172145 A1Toshiba Hokuto Electronics Corporation
Most cited
By later US patents
- Optical magnetron for high efficiency production of optical radiation59US 6,373,194 B1Raytheon Company · 2002
- Optical magnetron generator54US 6,525,477 B2Raytheon Company · 2003
- Optical magnetron for high efficiency production of optical radiation, and 1/2λ induced pi-mode operation53US 6,504,303 B2Raytheon Company · 2003
- Wireless communication system with high efficiency/high power optical source39US 7,257,327 B2Raytheon Company · 2007
- Magnetron tuning using plasmas18US 6,064,154 ARaytheon Company · 2000