H03D 7/1425
With transistors
Official title: {with transistors}
H03D7/1425 (With transistors) appears on 1,233 US grants and 1,064 published applications in this corpus.
Search patents in H03D- Granted patents
- 1,233
- Published applications
- 1,064
- Assignees
- 449
- Inventors
- 1,964
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 5 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 7 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 8 | 0 |
| 1991 | 4 | 0 |
| 1992 | 6 | 0 |
| 1993 | 3 | 0 |
| 1994 | 8 | 0 |
| 1995 | 6 | 0 |
| 1996 | 19 | 0 |
| 1997 | 12 | 0 |
| 1998 | 22 | 0 |
| 1999 | 25 | 0 |
| 2000 | 26 | 0 |
| 2001 | 25 | 18 |
| 2002 | 33 | 44 |
| 2003 | 35 | 45 |
| 2004 | 32 | 51 |
| 2005 | 39 | 64 |
| 2006 | 57 | 63 |
| 2007 | 33 | 55 |
| 2008 | 42 | 54 |
| 2009 | 62 | 74 |
| 2010 | 56 | 51 |
| 2011 | 50 | 49 |
| 2012 | 60 | 47 |
| 2013 | 73 | 43 |
| 2014 | 59 | 58 |
| 2015 | 47 | 40 |
| 2016 | 64 | 38 |
| 2017 | 40 | 30 |
| 2018 | 26 | 28 |
| 2019 | 38 | 28 |
| 2020 | 37 | 30 |
| 2021 | 37 | 33 |
| 2022 | 33 | 31 |
| 2023 | 26 | 22 |
| 2024 | 24 | 32 |
| 2025 | 22 | 22 |
| 2026 | 19 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H03D 7/1458Double balanced arrangements, i.e. where both input signals are differential932
- H03D 7/1441Using field-effect transistors858
- H03D 7/1433Using bipolar transistors447
- H03D 7/1466Passive mixer arrangements324
- H03D 7/1491Arrangements to linearise a transconductance stage of a mixer arrangement301
- H03D 7/1483Comprising components for selecting a particular frequency component of the output213
- H03D 7/1475Subharmonic mixer arrangements100
- H03D 7/145Using a combination of bipolar transistors and field-effect transistors81
Recent patents
- Active frequency mixer and frequency mixing method with improved gain and noise1 Sep 2026US 12,726,155 B2The Industry & Academic Cooperation in Chungnam National University (IAC)
- Mixer circuit25 Aug 2026US 12,719,519 B2NTT, Inc.
- Transconductor with adaptive bias offset cancellation18 Aug 2026US 12,712,582 B2Renesas Electronics America Inc.
- NPF radiofrequency device11 Aug 2026US 12,706,604 B2Centre National De La Recherche Scientifique
- Local-oscillator filtering in a mixer28 Jul 2026US 12,695,424 B2Ay Dee Kay LLC
- Receiver Circuit23 Jul 2026US 2026/0213712 A1Telefonaktiebolaget LM Ericsson (publ)
- Mixer with bias sharing9 Jul 2026US 2026/0197022 A1QUALCOMM Incorporated
- Operating method for radio frequency (rf) circuit including mixer configured for independent second order intercept point (ip2) calibration18 Jun 2026US 2026/0171970 A1GLOBALFOUNDRIES U. S. Inc.
- Active frequency mixer and frequency mixing method with improved gain and noise30 Apr 2026US 2026/0121581 A1The Industry & Academic Cooperation in Chungnam National University (IAC)
- Symmetrical resistive harmonic rejection mixer (hrm)23 Apr 2026US 2026/0113047 A1QUALCOMM Incorporated
Most cited
By later US patents
- RF amplifier, RF mixer and RF receiver265US 6,026,286 ACarleton University · 2000
- Method and system for down-converting electromagnetic signals185US 6,061,551 AParkerVision, Inc. · 2000
- Power amplification using a direct-upconverting quadrature mixer topology174US 6,307,894 B2Conexant Systems, Inc. · 2001
- Interface between SAW filter and Gilbert cell mixer132US 5,515,014 AAT&T Corp. · 1996
- Image reject mixer, circuit, and method for image rejection131US 6,226,509 B1Nortel Networks Limited · 2001