H03F 2203/45228
A transformer being added at the output or the load circuit of
Official title: A transformer being added at the output or the load circuit of the dif amp
H03F2203/45228 (A transformer being added at the output or the load circuit of) appears on 52 US grants and 48 published applications in this corpus.
Search patents in H03F- Granted patents
- 52
- Published applications
- 48
- Assignees
- 37
- Inventors
- 120
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 2 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 2 |
| 2016 | 4 | 3 |
| 2017 | 4 | 3 |
| 2018 | 6 | 5 |
| 2019 | 4 | 4 |
| 2020 | 3 | 5 |
| 2021 | 3 | 3 |
| 2022 | 5 | 9 |
| 2023 | 3 | 5 |
| 2024 | 6 | 1 |
| 2025 | 6 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- High frequency transmitter and receiver radio frequency interface including transmit/receive switch with electrostatic discharge protection and biasing schemes10 Jun 2025US 12,328,138 B2Samsung Electronics Co., Ltd.
- Bias circuit and power amplifier circuit22 Apr 2025US 12,283,925 B2Telefonaktiebolaget LM Ericsson (publ)
- Voltage-controlled oscillator devices2 Jul 2026US 2026/0189237 A1Texas Instruments Incorporated
- Wide band amplifier with bulk resistance15 Jan 2026US 2026/0019052 A1Texas Instruments Incorporated
- Power amplifier circuit26 Jun 2025US 2025/0211181 A1Murata Manufacturing Co., Ltd.
- Bias circuit and power amplifier circuit8 Aug 2024US 2024/0267011 A1Telefonaktiebolaget LM Ericsson (publ)
- Asymmetrical power amplifier circuit16 Nov 2023US 2023/0370021 A1Qorvo US, Inc.
Most cited
By later US patents
- Low cost monolithic GaAs upconverter chip58US 5,563,545 AAnadigics, Inc. · 1996
- Low cost monolithic gallium arsenide upconverter chip54US 5,625,307 AAnadigics, Inc. · 1997
- Compensation device for transistors11US 10,763,228 B2Infineon Technologies AG · 2020
- Loadline switchable push/pull power amplifier10US 11,283,416 B2Skyworks Solutions, Inc. · 2022
- Phase shifter9US 7,756,491 B2Axiom Microdevices, Inc. · 2010