H03B 5/1231
The amplifier comprising one or more bipolar transistors
Official title: {the amplifier comprising one or more bipolar transistors}
H03B5/1231 (The amplifier comprising one or more bipolar transistors) appears on 523 US grants and 288 published applications in this corpus.
Search patents in H03B- Granted patents
- 523
- Published applications
- 288
- Assignees
- 235
- Inventors
- 848
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 6 | 0 |
| 1978 | 5 | 0 |
| 1979 | 4 | 0 |
| 1980 | 0 | 0 |
| 1981 | 6 | 0 |
| 1982 | 6 | 0 |
| 1983 | 5 | 0 |
| 1984 | 1 | 0 |
| 1985 | 8 | 0 |
| 1986 | 19 | 0 |
| 1987 | 2 | 0 |
| 1988 | 7 | 0 |
| 1989 | 5 | 0 |
| 1990 | 7 | 0 |
| 1991 | 7 | 0 |
| 1992 | 15 | 0 |
| 1993 | 8 | 0 |
| 1994 | 5 | 0 |
| 1995 | 11 | 0 |
| 1996 | 9 | 0 |
| 1997 | 11 | 0 |
| 1998 | 19 | 0 |
| 1999 | 24 | 0 |
| 2000 | 21 | 0 |
| 2001 | 20 | 11 |
| 2002 | 18 | 25 |
| 2003 | 26 | 26 |
| 2004 | 22 | 28 |
| 2005 | 21 | 26 |
| 2006 | 25 | 25 |
| 2007 | 23 | 19 |
| 2008 | 17 | 19 |
| 2009 | 21 | 13 |
| 2010 | 7 | 12 |
| 2011 | 12 | 9 |
| 2012 | 11 | 8 |
| 2013 | 7 | 4 |
| 2014 | 5 | 1 |
| 2015 | 7 | 6 |
| 2016 | 5 | 3 |
| 2017 | 7 | 13 |
| 2018 | 4 | 9 |
| 2019 | 15 | 9 |
| 2020 | 13 | 7 |
| 2021 | 6 | 5 |
| 2022 | 5 | 4 |
| 2023 | 2 | 1 |
| 2024 | 4 | 1 |
| 2025 | 0 | 2 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods and apparatus to terminate transmission lines in voltage-controlled oscillators21 Jul 2026US 12,689,327 B2Texas Instruments Incorporated
- Phase noise filter for oscillator circuitry27 Jan 2026US 12,537,480 B2Apple Inc.
- Phase-locked loop circuit, corresponding radar sensor, vehicle and method of operation13 Jan 2026US 12,523,754 B2STMicroelectronics S,r.l.
- Osciclamp—an electronic circuit to increase low voltage levels of electrical sources30 Apr 2024US 11,973,466 B2
- Phase-locked loop circuit, corresponding radar sensor, vehicle and method of operation16 Apr 2024US 11,959,995 B2STMicroelectronics S,r.l.
- Methods and apparatus to terminate transmission lines in voltage-controlled oscillators2 Apr 2026US 2026/0095123 A1Texas Instruments Incorporated
- High Power Oscillator26 Mar 2026US 2026/0088759 A1
- Wide band circuitry, with high dynamic range, to measure dielectric constant and dielectric loss of a lossy dielectric medium simultaneously11 Dec 2025US 2025/0379351 A1King Abdullah University of Science and Technology
- Phase Noise Filter for Oscillator Circuitry13 Nov 2025US 2025/0350240 A1Apple Inc.
- Phase-locked loop circuit, corresponding radar sensor, vehicle and method of operation27 Jun 2024US 2024/0210550 A1STMicroelectronics S,r.l.
Most cited
By later US patents
- Voltage controlled oscillator with current control134US 5,175,884 AMotorola, Inc. · 1992
- LC oscillator115US 6,664,863 B1Niigata Seimitsu Co., Ltd. · 2003
- Frequency doubling oscillator and mixer circuit108US 4,810,976 APlessey Overseas Limited · 1989
- Container for inductively heating food86US 4,020,310 A1977
- Low power cordless magnetic field digitizer with differential grid sensing and synchronous position demodulation69US 5,218,174 AKurta Corporation · 1993