H03F 2203/00
Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor
Official title: Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
H03F2203/00 (Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor) appears on 10,041 US grants and 9,287 published applications in this corpus.
Search patents in H03F- Granted patents
- 10,041
- Published applications
- 9,287
- Assignees
- 1,916
- Inventors
- 12,928
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 11 | 0 |
| 1978 | 12 | 0 |
| 1979 | 9 | 0 |
| 1980 | 13 | 0 |
| 1981 | 21 | 0 |
| 1982 | 20 | 0 |
| 1983 | 17 | 0 |
| 1984 | 23 | 0 |
| 1985 | 28 | 0 |
| 1986 | 22 | 0 |
| 1987 | 27 | 0 |
| 1988 | 29 | 0 |
| 1989 | 26 | 0 |
| 1990 | 31 | 0 |
| 1991 | 22 | 0 |
| 1992 | 41 | 0 |
| 1993 | 36 | 0 |
| 1994 | 45 | 0 |
| 1995 | 72 | 0 |
| 1996 | 74 | 0 |
| 1997 | 61 | 0 |
| 1998 | 79 | 0 |
| 1999 | 95 | 0 |
| 2000 | 93 | 0 |
| 2001 | 142 | 42 |
| 2002 | 169 | 175 |
| 2003 | 217 | 201 |
| 2004 | 211 | 179 |
| 2005 | 187 | 274 |
| 2006 | 254 | 282 |
| 2007 | 300 | 407 |
| 2008 | 342 | 435 |
| 2009 | 397 | 433 |
| 2010 | 443 | 378 |
| 2011 | 385 | 330 |
| 2012 | 358 | 383 |
| 2013 | 393 | 381 |
| 2014 | 396 | 379 |
| 2015 | 373 | 462 |
| 2016 | 505 | 484 |
| 2017 | 531 | 415 |
| 2018 | 446 | 439 |
| 2019 | 542 | 503 |
| 2020 | 496 | 555 |
| 2021 | 459 | 480 |
| 2022 | 437 | 414 |
| 2023 | 328 | 399 |
| 2024 | 333 | 354 |
| 2025 | 306 | 293 |
| 2026 | 170 | 210 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H03F 2203/45Indexing scheme relating to differential amplifiersIndexing code7,636
- H03F 2203/72Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operativeIndexing code1,519
- H03F 2203/20Indexing scheme relating to power amplifiersIndexing code1,185
- H03F 2203/30Indexing scheme relating to single-ended push-pull [sepp]Indexing code428
- H03F 2203/50Indexing scheme relating to amplifiers in which input being applied to, orIndexing code144
Recent patents
- Tunable transconductor6 Oct 2026US 12,756,369 B2Texas Instruments Incorporated
- Fully integrated CMOS multiple MOSFET-stacked double push-pull RF power amplifier29 Sep 2026US 12,750,012 B2Shanghai WUQI Microelectronics Co., Ltd.
- Analog front end of receiver for high baud-rate communications29 Sep 2026US 12,750,015 B1Marvell Asia Pte Ltd
- Precision operational amplifier with a floating input stage29 Sep 2026US 12,750,023 B2Semiconductor Components Industries, LLC
- Methods and apparatus to determine a bias current of an amplifier29 Sep 2026US 12,750,024 B2Texas Instruments Incorporated
- Method and Apparatus for Computing Operations on a Non-volatile Memory Device8 Oct 2026US 2026/0311756 A1Singapore University of Technology and Design
- A fast settling offset compensated photon counting frontend8 Oct 2026US 2026/0312546 A1ams-OSRAM AG
- Self-protected high-transconductance input stage for comparators and amplifiers8 Oct 2026US 2026/0312554 A1Analog Devices International Unlimited Company
- Transimpedance amplifier with automatic gain control for signal acquisition8 Oct 2026US 2026/0312557 A1Technion Research & Development Foundation Limited
- Radio frequency (rf) circuit including power stage with rf noise blocking or attenuation for increased dynamic power range8 Oct 2026US 2026/0312558 A1GLOBALFOUNDRIES U. S. Inc.
Most cited
By later US patents
- Bypassing amplification301US 8,063,698 B2Bose Corporation · 2011
- Efficient parallel-stage power amplifier252US 5,872,481 AQUALCOMM Incorporated · 1999
- CMOS Operational amplifier225US 4,554,515 AAT&T Laboratories · 1985
- High-frequency amplifier, transmitting device and receiving device216US 5,903,854 ASony Corporation · 1999
- Operational amplifier apparatus211US 5,777,515 AMatsushita Electric Industrial Co., Ltd. · 1998