H03G 1/0088
Using discontinuously variable devices
Official title: {using discontinuously variable devices, e.g. switch-operated}
H03G1/0088 (Using discontinuously variable devices) appears on 1,202 US grants and 1,013 published applications in this corpus.
Search patents in H03G- Granted patents
- 1,202
- Published applications
- 1,013
- Assignees
- 442
- Inventors
- 2,042
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 6 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 6 | 0 |
| 1994 | 9 | 0 |
| 1995 | 10 | 0 |
| 1996 | 9 | 0 |
| 1997 | 16 | 0 |
| 1998 | 26 | 0 |
| 1999 | 29 | 0 |
| 2000 | 32 | 0 |
| 2001 | 38 | 7 |
| 2002 | 35 | 25 |
| 2003 | 29 | 36 |
| 2004 | 31 | 40 |
| 2005 | 28 | 55 |
| 2006 | 48 | 71 |
| 2007 | 55 | 59 |
| 2008 | 44 | 45 |
| 2009 | 55 | 51 |
| 2010 | 58 | 39 |
| 2011 | 43 | 41 |
| 2012 | 48 | 46 |
| 2013 | 42 | 32 |
| 2014 | 34 | 30 |
| 2015 | 37 | 33 |
| 2016 | 32 | 35 |
| 2017 | 35 | 43 |
| 2018 | 49 | 70 |
| 2019 | 73 | 50 |
| 2020 | 53 | 55 |
| 2021 | 39 | 33 |
| 2022 | 35 | 24 |
| 2023 | 25 | 32 |
| 2024 | 20 | 28 |
| 2025 | 21 | 17 |
| 2026 | 14 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Tunable effective inductance for multi-gain LNA with inductive source degeneration29 Sep 2026US 12,750,026 B2pSemi Corporation
- Current measurement circuit and method15 Sep 2026US 12,736,565 B2Aptiv Technologies AG
- Variable gain amplifiers with fine attenuation step control and flat signal-to-noise ratio versus attenuation14 Jul 2026US 12,683,560 B2Analog Devices, Inc.
- Programmable gain amplifier14 Jul 2026US 12,683,568 B2NXP USA, Inc.
- Variable gain amplifier2 Jun 2026US 12,647,081 B2Fujikura Ltd.
- Semiconductor device1 Oct 2026US 2026/0303033 A1Mitsumi Electric Co., Ltd.
- Differential amplifier with rf switch function20 Aug 2026US 2026/0246435 A1Fujikura Ltd.
- Multi-level digital step attenuator and digital step attenuation device20 Aug 2026US 2026/0246452 A1Mediatek Inc.
- Wideband lna with output match configurability13 Aug 2026US 2026/0238168 A1Murata Manufacturing Co., Ltd.
- Variable gain low noise amplifier and method for controlling gain of variable gain low noise amplifier9 Jul 2026US 2026/0196977 A1Mediatek Inc.
Most cited
By later US patents
- Output level control apparatus224US 4,926,485 APioneer Electronic Corporation · 1990
- High-frequency amplifier, transmitting device and receiving device216US 5,903,854 ASony Corporation · 1999
- Amplifier with controlled gain163US 4,441,080 ABell Telephone Laboratories, Incorporated · 1984
- Programmable linear receiver having a variable IIP3 point137US 6,498,926 B1QUALCOMM Incorporated · 2002
- Amplifier with adjustable bias current131US 6,175,279 B1QUALCOMM Incorporated · 2001