H03G 2201/00
Indexing scheme relating to subclass h03g
Official title: Indexing scheme relating to subclass H03G
H03G2201/00 (Indexing scheme relating to subclass h03g) appears on 695 US grants and 794 published applications in this corpus.
Search patents in H03G- Granted patents
- 695
- Published applications
- 794
- Assignees
- 320
- Inventors
- 1,472
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 2 |
| 2003 | 0 | 3 |
| 2004 | 6 | 9 |
| 2005 | 6 | 24 |
| 2006 | 9 | 19 |
| 2007 | 20 | 12 |
| 2008 | 16 | 5 |
| 2009 | 14 | 8 |
| 2010 | 9 | 4 |
| 2011 | 7 | 1 |
| 2012 | 3 | 3 |
| 2013 | 6 | 3 |
| 2014 | 3 | 4 |
| 2015 | 4 | 8 |
| 2016 | 7 | 7 |
| 2017 | 10 | 17 |
| 2018 | 25 | 53 |
| 2019 | 57 | 66 |
| 2020 | 70 | 85 |
| 2021 | 66 | 77 |
| 2022 | 90 | 97 |
| 2023 | 78 | 103 |
| 2024 | 72 | 79 |
| 2025 | 63 | 58 |
| 2026 | 52 | 47 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H03G 2201/10Gain control characterised by the type of controlled elementIndexing code504
- H03G 2201/30Gain control characterized by the type of controlled signalIndexing code196
- H03G 2201/70Gain control characterized by the gain control parameterIndexing code95
- H03G 2201/20Gain control characterized by the position of the detectionIndexing code89
- H03G 2201/50Gain control characterized by the means of gain controlIndexing code67
- H03G 2201/40Combined gain and bias controlIndexing code51
- H03G 2201/60Gain control characterized by varying time constants in control loopIndexing code2
Recent patents
- Radio frequency low noise amplifiers29 Sep 2026US 12,750,021 B2Huawei Technologies Co., Ltd.
- Tunable effective inductance for multi-gain LNA with inductive source degeneration29 Sep 2026US 12,750,026 B2pSemi Corporation
- Measurement and calibration of mismatch in an isolation channel29 Sep 2026US 12,750,078 B2Skyworks Solutions, Inc.
- Radio frequency device applied in phased array antenna with power detection and calibration, semiconductor device and method thereof22 Sep 2026US 12,744,499 B2Tron Future Tech Inc.
- Method for varying amplifier gain22 Sep 2026US 12,744,503 B2Nokia Solutions and Networks Oy
- Noise reduction earphone and earphone noise reduction method8 Oct 2026US 2026/0311673 A1Shenzhen Dancing Future Technology Ltd.
- Amplifier gain control for constant input impedance8 Oct 2026US 2026/0312559 A1pSemi Corporation
- Electrical isolation monitoring1 Oct 2026US 2026/0296243 A1Rivian IP Holdings, LLC
- Acoustic reproduction system1 Oct 2026US 2026/0304062 A1Adaptive Audio Limited
- Shared phase shifter radio architecture24 Sep 2026US 2026/0291475 A1QUALCOMM Incorporated
Most cited
By later US patents
- Volume enhancements in a multi-zone media playback system157US 9,231,545 B2Sonos, Inc. · 2016
- Switchable-bandwidth optical receiver82US 6,862,322 B1International Business Machines Corporation · 2005
- Variable gain amplifier79US 7,397,302 B2International Business Machines Corporation · 2008
- Dynamically varying linearity system for an RF front-end of a communication device74US 6,674,999 B2Skyworks Solutions, Inc. · 2004
- Gain control methods and systems in an amplifier assembly43US 6,798,286 B2Broadcom Corporation · 2004