H03B 7/00
Generation of oscillations using active element having a negative resistance between two
Official title: Generation of oscillations using active element having a negative resistance between two of its electrodes (H03B9/00 takes precedence)
H03B7/00 (Generation of oscillations using active element having a negative resistance between two) appears on 227 US grants and 140 published applications in this corpus.
Search patents in H03B- Granted patents
- 227
- Published applications
- 140
- Assignees
- 112
- Inventors
- 337
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 7 | 0 |
| 1978 | 5 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 6 | 0 |
| 1991 | 2 | 0 |
| 1992 | 6 | 0 |
| 1993 | 6 | 0 |
| 1994 | 8 | 0 |
| 1995 | 2 | 0 |
| 1996 | 8 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 1 | 1 |
| 2002 | 5 | 1 |
| 2003 | 1 | 0 |
| 2004 | 1 | 1 |
| 2005 | 1 | 1 |
| 2006 | 2 | 2 |
| 2007 | 1 | 3 |
| 2008 | 3 | 5 |
| 2009 | 5 | 1 |
| 2010 | 2 | 5 |
| 2011 | 4 | 1 |
| 2012 | 6 | 9 |
| 2013 | 2 | 5 |
| 2014 | 7 | 12 |
| 2015 | 12 | 8 |
| 2016 | 12 | 13 |
| 2017 | 2 | 6 |
| 2018 | 7 | 5 |
| 2019 | 7 | 4 |
| 2020 | 6 | 5 |
| 2021 | 6 | 11 |
| 2022 | 13 | 14 |
| 2023 | 10 | 12 |
| 2024 | 8 | 4 |
| 2025 | 7 | 6 |
| 2026 | 2 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Terahertz device7 Apr 2026US 12,597,714 B2Rohm Co., Ltd.
- Crystal oscillator with on-chip negative resistance margin measurement circuit20 Jan 2026US 12,531,513 B2NXP B. V.
- Antenna apparatus, communication apparatus, and image capturing system12 Aug 2025US 12,388,165 B2Canon Kabushiki Kaisha
- Element, and terahertz camera system using element8 Jul 2025US 12,355,147 B2Canon Kabushiki Kaisha
- Oscillator and detecting system17 Jun 2025US 12,334,870 B2Canon Kabushiki Kaisha
- System and method for thz amplification by wavelength injection of resonant tunneling diode oscillator1 Oct 2026US 2026/0303020 A1Imra America, Inc.
- Apparatus comprising a plurality of resonant tunneling diode elements, method of manufacturing such apparatus, method of operating such apparatus17 Sep 2026US 2026/0280486 A1Nokia Solutions and Networks Oy
- Terahertz device16 Jul 2026US 2026/0204803 A1Rohm Co., Ltd.
- Terahertz device30 Apr 2026US 2026/0121285 A1Rohm Co., Ltd.
- Terahertz device30 Apr 2026US 2026/0123085 A1Rohm Co., Ltd.
Most cited
By later US patents
- Bipolar junction transistor (BJT)--resonant tunneling diode (RTD) oscillator circuit and method122US 5,883,549 AHughes Electronics Corporation · 1999
- Electronic viewing aid88US 5,818,381 ARoscoe C. Williams Limited · 1998
- Monolithic microwave transmitter/receiver81US 5,511,238 ATexas Instruments Incorporated · 1996
- Oscillator having stripline loop resonator61US 4,749,963 AMatsushita Electric Industrial Co., Ltd. · 1988
- Slab-elements for covering the ground54US 4,128,357 A1978