H03D 7/00
Transference of modulation from one carrier to another
Official title: Transference of modulation from one carrier to another, e.g. frequency-changing (H03D9/00, H03D11/00 take precedence; dielectric amplifiers, magnetic amplifiers, parametric amplifiers used as a frequency-changers H03F)
H03D7/00 (Transference of modulation from one carrier to another) appears on 3,373 US grants and 2,234 published applications in this corpus.
Search patents in H03D- Granted patents
- 3,373
- Published applications
- 2,234
- Assignees
- 943
- Inventors
- 4,832
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 19 | 0 |
| 1977 | 13 | 0 |
| 1978 | 14 | 0 |
| 1979 | 21 | 0 |
| 1980 | 20 | 0 |
| 1981 | 24 | 0 |
| 1982 | 22 | 0 |
| 1983 | 27 | 0 |
| 1984 | 21 | 0 |
| 1985 | 29 | 0 |
| 1986 | 32 | 0 |
| 1987 | 40 | 0 |
| 1988 | 23 | 0 |
| 1989 | 35 | 0 |
| 1990 | 33 | 0 |
| 1991 | 35 | 0 |
| 1992 | 35 | 0 |
| 1993 | 38 | 0 |
| 1994 | 54 | 0 |
| 1995 | 56 | 0 |
| 1996 | 71 | 0 |
| 1997 | 68 | 0 |
| 1998 | 101 | 0 |
| 1999 | 108 | 0 |
| 2000 | 117 | 0 |
| 2001 | 86 | 39 |
| 2002 | 94 | 122 |
| 2003 | 95 | 117 |
| 2004 | 87 | 107 |
| 2005 | 90 | 139 |
| 2006 | 145 | 135 |
| 2007 | 93 | 141 |
| 2008 | 94 | 101 |
| 2009 | 130 | 136 |
| 2010 | 116 | 117 |
| 2011 | 116 | 99 |
| 2012 | 127 | 80 |
| 2013 | 129 | 83 |
| 2014 | 102 | 107 |
| 2015 | 98 | 75 |
| 2016 | 102 | 56 |
| 2017 | 68 | 71 |
| 2018 | 59 | 68 |
| 2019 | 89 | 64 |
| 2020 | 87 | 76 |
| 2021 | 66 | 65 |
| 2022 | 69 | 57 |
| 2023 | 51 | 47 |
| 2024 | 46 | 55 |
| 2025 | 42 | 49 |
| 2026 | 36 | 28 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H03D 7/16Multiple-frequency-changing1,615
- H03D 7/14Balanced arrangements1,522
- H03D 7/12Transference of modulation from one carrier to another: by means of semiconductor413
- H03D 7/18Modifications of frequency-changers for eliminating image frequencies235
- H03D 7/02Transference of modulation from one carrier to another: by means of diodes62
- H03D 7/005Transference of modulation from one carrier to another: by means of superconductive61
- H03D 7/06Transference of modulation from one carrier to another: by means of discharge2
- H03D 7/20Transference of modulation from one carrier to another: by means of transit-time0
All 9 subgroupsShow fewer
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