H03C 3/22
The element being a semiconductor diode
Official title: the element being a semiconductor diode, e.g. varicap diode
H03C3/22 (The element being a semiconductor diode) appears on 103 US grants and 26 published applications in this corpus.
Search patents in H03C- Granted patents
- 103
- Published applications
- 26
- Assignees
- 55
- Inventors
- 162
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 5 | 0 |
| 1984 | 6 | 0 |
| 1985 | 7 | 0 |
| 1986 | 8 | 0 |
| 1987 | 3 | 0 |
| 1988 | 5 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 2 |
| 2004 | 2 | 2 |
| 2005 | 1 | 3 |
| 2006 | 0 | 2 |
| 2007 | 1 | 0 |
| 2008 | 3 | 5 |
| 2009 | 5 | 5 |
| 2010 | 2 | 0 |
| 2011 | 2 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 2 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Multi-gigabit per second frequency-shift keying (FSK) transceiver28 Apr 2026US 12,615,174 B2The Regents of the University of California
- Frequency modulator and magnetic resonance tomography system with a frequency modulator3 Oct 2017US 9,780,727 B2Siemens Aktiengesellschaft
- Ultra-wideband impulse radio transmitter with modulation19 Aug 2014US 8,811,527 B2Agency for Science, Technology and Research
- Dual rail out-phased envelope tracking modulator22 Apr 2014US 8,704,594 B2Auriga Measurement Systems, LLC
- Microwave/millimeter wave communication apparatus19 Feb 2013US 8,380,140 B2Communications Research Laboratory
- Multi-gigabit per second frequency-shift keying (fsk) transceiver5 Jun 2025US 2025/0184194 A1The Regents of the University of California
- Transmitter, transceiver circuit, and wireless transmitting and receiving system17 Nov 2016US 2016/0337152 A1Fujitsu Limited
- Frequency Modulator and Magnetic Resonance Tomography System with a Frequency Modulator9 Jan 2014US 2014/0009237 A1Siemens Aktiengesellschaft
- Transmitter with Modulation24 Jan 2013US 2013/0022086 A1Agency for Science, Technology and Research
- Dual Rail Out-Phased Envelope Tracking Modulator13 Dec 2012US 2012/0313702 A1Auriga Measurement Systems, LLC
Most cited
By later US patents
- Voltage controlled oscillator with frequency sensitivity control84US 4,736,169 AHughes Aircraft Company · 1988
- Direct digital polar modulator54US 6,834,084 B22004
- Battery saving system for a frequency synthesizer51US 4,631,496 AMotorola, Inc. · 1986
- MMIC tunable biphase modulator49US 5,442,327 AMotorola, Inc. · 1995
- Direct QAM modulator39US 5,852,389 ATelecommunications Research Laboratories · 1998