H03F 3/605
Distributed amplifiers
Official title: {Distributed amplifiers}
H03F3/605 (Distributed amplifiers) appears on 350 US grants and 271 published applications in this corpus.
Search patents in H03F- Granted patents
- 350
- Published applications
- 271
- Assignees
- 175
- Inventors
- 504
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 7 | 0 |
| 1989 | 8 | 0 |
| 1990 | 5 | 0 |
| 1991 | 10 | 0 |
| 1992 | 10 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 4 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 5 | 0 |
| 2000 | 4 | 0 |
| 2001 | 5 | 2 |
| 2002 | 7 | 7 |
| 2003 | 8 | 12 |
| 2004 | 14 | 14 |
| 2005 | 6 | 11 |
| 2006 | 7 | 9 |
| 2007 | 13 | 12 |
| 2008 | 10 | 8 |
| 2009 | 9 | 15 |
| 2010 | 15 | 12 |
| 2011 | 10 | 5 |
| 2012 | 8 | 12 |
| 2013 | 12 | 9 |
| 2014 | 14 | 13 |
| 2015 | 8 | 4 |
| 2016 | 7 | 15 |
| 2017 | 16 | 16 |
| 2018 | 16 | 16 |
| 2019 | 20 | 9 |
| 2020 | 9 | 8 |
| 2021 | 7 | 11 |
| 2022 | 5 | 8 |
| 2023 | 11 | 12 |
| 2024 | 7 | 15 |
| 2025 | 11 | 10 |
| 2026 | 6 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Open-collector variable gain amplifier and method therefor15 Sep 2026US 12,738,911 B2MACOM Technology Solutions Holdings, Inc.
- Variable gain optical modulator with open collector driver amplifier and method of operation18 Aug 2026US 12,712,508 B2MACOM Technology Solutions Holdings, Inc.
- Hybrid distributed driver9 Jun 2026US 12,652,012 B2MACOM Technology Solution Holdings, Inc.
- Active biasing and termination approach for distributed amplifier circuit19 May 2026US 12,633,886 B2Analog Devices, Inc.
- Distributed amplifier3 Mar 2026US 12,567,840 B2NTT, Inc.
- Damping resonance element with double-sided dc feeding technique for dc to mm-wave high gain cascode single-ended/differential distributed amplifier17 Sep 2026US 2026/0280506 A1Ciena Corporation
- Wideband distributed amplifier in a receiver2 Apr 2026US 2026/0095127 A1Avago Technologies International Sales Pte. Limited
- Common-mode stabilization of high-frequency differential distributed driver amplifier26 Mar 2026US 2026/0088784 A1Ciena Corporation
- Distributed conversion of digital data to radio frequency26 Mar 2026US 2026/0088834 A1Pagnanelli Family Trust
- Amplifier circuit5 Feb 2026US 2026/0039265 A1Advantest Corporation
Most cited
By later US patents
- N-way Doherty distributed power amplifier with power tracking120US 8,274,332 B2Dali Systems Co. Ltd. · 2012
- Method and apparatus for Josephson distributed output amplifier110US 7,724,083 B2Northrop Grumman Systems Corporation · 2010
- Parallel distributed signal amplifiers105US 4,701,716 ARCA Corporation · 1987
- High gain wideband driver amplifier104US 6,794,934 B2iTerra Communications, LLC · 2004
- Monolithic double balanced mixer with high third order intercept point employing an active distributed balun76US 5,060,298 ASiemens Aktiengesellschaft · 1991