H03F 3/58
Using travelling-wave tubes
Official title: using travelling-wave tubes
H03F3/58 (Using travelling-wave tubes) appears on 98 US grants and 57 published applications in this corpus.
Search patents in H03F- Granted patents
- 98
- Published applications
- 57
- Assignees
- 60
- Inventors
- 177
- Latest grant
- 17 Sep 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 5 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 6 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 6 | 5 |
| 2003 | 2 | 3 |
| 2004 | 4 | 3 |
| 2005 | 1 | 2 |
| 2006 | 2 | 5 |
| 2007 | 2 | 1 |
| 2008 | 4 | 3 |
| 2009 | 2 | 3 |
| 2010 | 2 | 0 |
| 2011 | 1 | 1 |
| 2012 | 2 | 2 |
| 2013 | 0 | 0 |
| 2014 | 2 | 5 |
| 2015 | 2 | 1 |
| 2016 | 5 | 4 |
| 2017 | 2 | 3 |
| 2018 | 2 | 2 |
| 2019 | 1 | 1 |
| 2020 | 5 | 4 |
| 2021 | 3 | 2 |
| 2022 | 2 | 2 |
| 2023 | 3 | 1 |
| 2024 | 2 | 2 |
| 2025 | 0 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Methods of making a self-assembled slow-wave structures17 Sep 2024US 12,091,746 B2The Regents of the University of New Mexico
- Signal transmitter13 Feb 2024US 11,901,923 B2Huawei Technologies Co., Ltd.
- Traveling wave mixer29 Aug 2023US 11,742,801 B2Keysight Technologies, Inc.
- Electronically-scanned antennas with distributed amplification25 Jul 2023US 11,710,898 B1HRL Laboratories, LLC
- Electroplated helical slow-wave structures for high-frequency signals21 Feb 2023US 11,588,456 B2Wisconsin Alumni Research Foundation
- Directed self-assembly of helices via electrodeposition on end-tethered nanomembrane ribbons for millimeter-wave traveling-wave tube amplifiers9 Oct 2025US 2025/0317115 A1UNM Rainforest Innovations
- Travelling-Wave Tube, Electron Gun, and Power Amplification System27 Feb 2025US 2025/0070736 A1Huawei Technologies Co., Ltd.
- System and method for managing the operation of a travelling wave tube amplifier6 Jun 2024US 2024/0186957 A1
- Biasing of travelling wave amplifiers8 Feb 2024US 2024/0048110 A1Semtech Corporation
- Traveling wave mixer4 May 2023US 2023/0140378 A1Keysight Technologies, Inc.
Most cited
By later US patents
- Wide-band gyrotron traveling-wave amplifier229US 4,533,875 A1985
- Digitally controllable nonlinear pre-equalizer65US 6,674,326 B1The Boeing Company · 2004
- Noise cancellation method and apparatus58US 5,940,025 ARaytheon Company · 1999
- Divider/combiner amplifier46US 4,424,496 ARaytheon Company · 1984
- Layered modulation for digital signals44US 7,209,524 B2The DIRECTV Group, Inc. · 2007