H01J 23/16
Circuit elements, having distributed capacitance and inductance, structurally associated with the tube
Official title: Circuit elements, having distributed capacitance and inductance, structurally associated with the tube and interacting with the discharge
H01J23/16 (Circuit elements, having distributed capacitance and inductance, structurally associated with the tube) appears on 456 US grants and 136 published applications in this corpus.
Search patents in H01J- Granted patents
- 456
- Published applications
- 136
- Assignees
- 147
- Inventors
- 605
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 15 | 0 |
| 1978 | 21 | 0 |
| 1979 | 11 | 0 |
| 1980 | 14 | 0 |
| 1981 | 25 | 0 |
| 1982 | 11 | 0 |
| 1983 | 14 | 0 |
| 1984 | 11 | 0 |
| 1985 | 15 | 0 |
| 1986 | 11 | 0 |
| 1987 | 20 | 0 |
| 1988 | 14 | 0 |
| 1989 | 13 | 0 |
| 1990 | 9 | 0 |
| 1991 | 13 | 0 |
| 1992 | 13 | 0 |
| 1993 | 8 | 0 |
| 1994 | 8 | 0 |
| 1995 | 15 | 0 |
| 1996 | 13 | 0 |
| 1997 | 7 | 0 |
| 1998 | 8 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 4 | 2 |
| 2002 | 7 | 7 |
| 2003 | 11 | 7 |
| 2004 | 7 | 10 |
| 2005 | 6 | 6 |
| 2006 | 6 | 5 |
| 2007 | 4 | 4 |
| 2008 | 4 | 3 |
| 2009 | 4 | 5 |
| 2010 | 3 | 1 |
| 2011 | 4 | 4 |
| 2012 | 3 | 12 |
| 2013 | 6 | 2 |
| 2014 | 8 | 5 |
| 2015 | 10 | 5 |
| 2016 | 3 | 8 |
| 2017 | 10 | 3 |
| 2018 | 4 | 5 |
| 2019 | 10 | 6 |
| 2020 | 3 | 5 |
| 2021 | 4 | 5 |
| 2022 | 3 | 10 |
| 2023 | 5 | 3 |
| 2024 | 6 | 3 |
| 2025 | 6 | 8 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Power supply device for gyrotron and power control method1 Sep 2026US 12,725,752 B2Kyoto Fusioneering Ltd.
- Radiotherapy device and microwave source thereof12 May 2026US 12,623,089 B2Shanghai United Imaging Healthcare Co., Ltd.
- Magnetron10 Feb 2026US 12,548,729 B2Hitachi Power Solutions Co., Ltd.
- Magneto-electrostatic sensing, focusing, and steering of electron beams in vacuum electron devices4 Nov 2025US 12,463,000 B2Elve Inc.
- Traveling wave tube14 Oct 2025US 12,444,566 B2Raytheon Company
- Magneto-electrostatic sensing, focusing, and steering of electron beams in vacuum electron devices5 Feb 2026US 2026/0038760 A1Elve Inc.
- Slow-wave structure, traveling-wave tube, and communication apparatus29 Jan 2026US 2026/0031297 A1Huawei Technologies Co., Ltd.
- Slow-wave structure, traveling wave tube, electronic device, and communication system27 Nov 2025US 2025/0364201 A1Huawei Technologies Co., Ltd.
- Klystron27 Nov 2025US 2025/0364202 A1Canon Electron Tubes & Devices Co., Ltd.
- Compact mode converter waveguide13 Nov 2025US 2025/0349486 A1Varian Medical Systems, Inc.
Most cited
By later US patents
- Wide-band distributed rf coupler230US 4,567,401 AThe United States of America as represented by the Secretary of the Navy · 1986
- Photolithographic method for making helices for traveling wave tubes and other cylindrical objects72US 5,112,438 AHughes Aircraft Company · 1992
- Variable frequency RFQ linear accelerator69US 4,712,042 AAccSys Technology, Inc. · 1987
- Magnetron having identically shaped strap rings separated by a gap and connecting alternate anode vane groups64US 5,146,136 AHitachi, Ltd. · 1992
- Optical magnetron for high efficiency production of optical radiation59US 6,373,194 B1Raytheon Company · 2002