H03F 3/19
With semiconductor devices only
Official title: with semiconductor devices only
H03F3/19 (With semiconductor devices only) appears on 8,631 US grants and 9,334 published applications in this corpus.
Search patents in H03F- Granted patents
- 8,631
- Published applications
- 9,334
- Assignees
- 1,455
- Inventors
- 10,177
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 5 | 0 |
| 1978 | 8 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 11 | 0 |
| 1982 | 10 | 0 |
| 1983 | 15 | 0 |
| 1984 | 11 | 0 |
| 1985 | 22 | 0 |
| 1986 | 20 | 0 |
| 1987 | 16 | 0 |
| 1988 | 12 | 0 |
| 1989 | 18 | 0 |
| 1990 | 9 | 0 |
| 1991 | 13 | 0 |
| 1992 | 15 | 0 |
| 1993 | 12 | 0 |
| 1994 | 21 | 0 |
| 1995 | 21 | 0 |
| 1996 | 17 | 0 |
| 1997 | 30 | 0 |
| 1998 | 33 | 0 |
| 1999 | 34 | 0 |
| 2000 | 47 | 0 |
| 2001 | 39 | 18 |
| 2002 | 54 | 78 |
| 2003 | 60 | 55 |
| 2004 | 77 | 85 |
| 2005 | 76 | 125 |
| 2006 | 97 | 130 |
| 2007 | 115 | 160 |
| 2008 | 119 | 188 |
| 2009 | 151 | 165 |
| 2010 | 188 | 211 |
| 2011 | 189 | 237 |
| 2012 | 219 | 286 |
| 2013 | 275 | 293 |
| 2014 | 321 | 393 |
| 2015 | 403 | 536 |
| 2016 | 529 | 570 |
| 2017 | 652 | 565 |
| 2018 | 621 | 649 |
| 2019 | 700 | 634 |
| 2020 | 622 | 686 |
| 2021 | 513 | 618 |
| 2022 | 511 | 583 |
| 2023 | 407 | 628 |
| 2024 | 451 | 577 |
| 2025 | 514 | 507 |
| 2026 | 314 | 357 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Power amplifier and radio frequency module6 Oct 2026US 12,756,368 B2Mitsubishi Electric Corporation
- Apparatus and method for digital predistortion initialization of high-power amplifiers29 Sep 2026US 12,750,013 B2L3Harris Technologies, Inc.
- Analog front end of receiver for high baud-rate communications29 Sep 2026US 12,750,015 B1Marvell Asia Pte Ltd
- Tunable effective inductance for multi-gain LNA with inductive source degeneration29 Sep 2026US 12,750,026 B2pSemi Corporation
- Radio-frequency circuit and communication device22 Sep 2026US 12,744,553 B2Murata Manufacturing Co., Ltd.
- High-frequency power supply device8 Oct 2026US 2026/0312541 A1Kyosan Electric Mfg. Co., Ltd.
- Stability circuits and methods for power amplifiers8 Oct 2026US 2026/0312549 A1Skyworks Solutions, Inc.
- Noise figure performance in receive paths of front end modules8 Oct 2026US 2026/0312608 A1
- Adaptive biasing in a power amplifier circuit1 Oct 2026US 2026/0303023 A1Qorvo US, Inc.
- Differential power amplifier1 Oct 2026US 2026/0303031 A1Murata Manufacturing Co., Ltd.
Most cited
By later US patents
- Distortion compensation apparatus and distortion compensation method358US 9,397,619 B2Fujitsu Limited · 2016
- System and method for dual-band antenna matching340US 7,180,467 B2Kyocera Wireless Corp. · 2007
- Tunable horn antenna238US 6,867,744 B2Kyocera Wireless Corp. · 2005
- High-frequency amplifier, transmitting device and receiving device216US 5,903,854 ASony Corporation · 1999
- Electronically tuned power amplifier205US 7,202,734 B12007