H03B 5/12
Active element in amplifier being semiconductor device
Official title: active element in amplifier being semiconductor device (H03B5/14 takes precedence)
H03B5/12 (Active element in amplifier being semiconductor device) appears on 2,179 US grants and 1,880 published applications in this corpus.
Search patents in H03B- Granted patents
- 2,179
- Published applications
- 1,880
- Assignees
- 668
- Inventors
- 3,304
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 7 | 0 |
| 1978 | 6 | 0 |
| 1979 | 7 | 0 |
| 1980 | 0 | 0 |
| 1981 | 6 | 0 |
| 1982 | 7 | 0 |
| 1983 | 5 | 0 |
| 1984 | 3 | 0 |
| 1985 | 11 | 0 |
| 1986 | 28 | 0 |
| 1987 | 5 | 0 |
| 1988 | 13 | 0 |
| 1989 | 8 | 0 |
| 1990 | 10 | 0 |
| 1991 | 8 | 0 |
| 1992 | 20 | 0 |
| 1993 | 10 | 0 |
| 1994 | 6 | 0 |
| 1995 | 16 | 0 |
| 1996 | 13 | 0 |
| 1997 | 12 | 0 |
| 1998 | 24 | 0 |
| 1999 | 28 | 0 |
| 2000 | 26 | 0 |
| 2001 | 36 | 14 |
| 2002 | 32 | 65 |
| 2003 | 50 | 51 |
| 2004 | 69 | 87 |
| 2005 | 69 | 99 |
| 2006 | 83 | 84 |
| 2007 | 85 | 80 |
| 2008 | 68 | 98 |
| 2009 | 79 | 96 |
| 2010 | 62 | 66 |
| 2011 | 76 | 65 |
| 2012 | 85 | 64 |
| 2013 | 46 | 59 |
| 2014 | 56 | 65 |
| 2015 | 72 | 80 |
| 2016 | 135 | 93 |
| 2017 | 87 | 99 |
| 2018 | 58 | 89 |
| 2019 | 114 | 93 |
| 2020 | 138 | 102 |
| 2021 | 94 | 71 |
| 2022 | 79 | 72 |
| 2023 | 81 | 50 |
| 2024 | 49 | 41 |
| 2025 | 55 | 50 |
| 2026 | 36 | 47 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H03B 5/1237Comprising means for varying the frequency of the generator1,707
- H03B 5/1206Using multiple transistors for amplification1,577
- H03B 5/1228The amplifier comprising one or more field effect transistors1,264
- H03B 5/1231The amplifier comprising one or more bipolar transistors523
- H03B 5/1203The amplifier being a single transistor349
- H03B 5/1296The feedback circuit comprising a transformer279
- H03B 5/1234And comprising means for varying the output amplitude of the generator52
Recent patents
- Systems and methods for implementing a dual-core voltage-controlled oscillator18 Aug 2026US 12,712,490 B2Avago Technologies International Sales Pte. Limited
- Methods, apparatus, and systems for a multi-band hybrid inductor-capacitor voltage-controlled oscillator28 Jul 2026US 12,695,420 B1Texas Instruments Incorporated
- Integrated oscillator of low noise28 Jul 2026US 12,695,421 B1Realtek Semiconductor Corp.
- Methods and apparatus to terminate transmission lines in voltage-controlled oscillators21 Jul 2026US 12,689,327 B2Texas Instruments Incorporated
- Digitally controlled oscillator21 Jul 2026US 12,689,328 B2NXP B. V.
- Compensation Technique for the Nonlinear Behavior of Digitally-Controlled Oscillator (DCO) Gain8 Oct 2026US 2026/0312591 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Inductor-capacitor (lc)-voltage controlled oscillator (vco) and method of operating the same24 Sep 2026US 2026/0291435 A1Samsung Electronics Co., Ltd.
- Circuits and methods for generating an oscillator signal24 Sep 2026US 2026/0291436 A1Analog Devices International Unlimited Company
- Cartridge case annealer with data analysis20 Aug 2026US 2026/0242885 A1Knowledgeable Holdings LLC
- Reducing Phase Noise for Oscillator Circuitry13 Aug 2026US 2026/0238161 A1Apple Inc.
Most cited
By later US patents
- Tunable horn antenna238US 6,867,744 B2Kyocera Wireless Corp. · 2005
- Tunable matching circuit154US 6,825,818 B2Kyocera Wireless Corp. · 2004
- Dual-band coupled VCO148US 8,125,282 B2Telefonaktiebolaget LM Ericsson (publ) · 2012
- Tunable antenna matching circuit139US 6,765,540 B2Kyocera Wireless Corp. · 2004
- Voltage controlled oscillator with current control134US 5,175,884 AMotorola, Inc. · 1992