H03C
Modulation
Official title: MODULATION (masers or lasers H01S; coding, decoding or code conversion H03M)
H03C (Modulation) appears on 2,508 US grants and 1,493 published applications in this corpus.
Search patents in H03C- Granted patents
- 2,508
- Published applications
- 1,493
- Assignees
- 850
- Inventors
- 3,693
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 37 | 0 |
| 1977 | 30 | 0 |
| 1978 | 31 | 0 |
| 1979 | 18 | 0 |
| 1980 | 21 | 0 |
| 1981 | 25 | 0 |
| 1982 | 25 | 0 |
| 1983 | 17 | 0 |
| 1984 | 29 | 0 |
| 1985 | 51 | 0 |
| 1986 | 36 | 0 |
| 1987 | 37 | 0 |
| 1988 | 28 | 0 |
| 1989 | 29 | 0 |
| 1990 | 38 | 0 |
| 1991 | 39 | 0 |
| 1992 | 51 | 0 |
| 1993 | 24 | 0 |
| 1994 | 33 | 0 |
| 1995 | 59 | 0 |
| 1996 | 55 | 0 |
| 1997 | 27 | 0 |
| 1998 | 54 | 0 |
| 1999 | 59 | 0 |
| 2000 | 54 | 0 |
| 2001 | 49 | 14 |
| 2002 | 43 | 53 |
| 2003 | 55 | 77 |
| 2004 | 79 | 111 |
| 2005 | 48 | 113 |
| 2006 | 90 | 89 |
| 2007 | 81 | 124 |
| 2008 | 95 | 85 |
| 2009 | 98 | 98 |
| 2010 | 110 | 84 |
| 2011 | 123 | 55 |
| 2012 | 73 | 67 |
| 2013 | 82 | 50 |
| 2014 | 75 | 60 |
| 2015 | 76 | 69 |
| 2016 | 62 | 50 |
| 2017 | 57 | 29 |
| 2018 | 44 | 48 |
| 2019 | 49 | 38 |
| 2020 | 52 | 47 |
| 2021 | 48 | 35 |
| 2022 | 35 | 30 |
| 2023 | 25 | 22 |
| 2024 | 20 | 16 |
| 2025 | 19 | 15 |
| 2026 | 13 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- H03C 3/00Angle modulation1,543
- H03C 1/00Amplitude modulation653
- H03C 5/00Amplitude modulation and angle modulation produced simultaneously or at will by the392
- H03C 2200/00Indexing scheme relating to details of modulators or modulation methods covered byIndexing code191
- H03C 7/00Modulating electromagnetic waves108
- H03C 99/00Subject matter not provided for in other groups of this subclass4
Recent patents
- Electronic generator of carrier modulated pulse signals and associated radiofrequency signals transmitter16 Jun 2026US 12,659,201 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Calibration circuit and method, phase-shift circuit, radio-frequency transceiver circuit, radar and device26 May 2026US 12,638,547 B2Calterah Semiconductor Technology (Shanghai) Co., Ltd.
- Systems, methods, and devices for electromagnetic modulation26 May 2026US 12,640,685 B2The MITRE Corporation
- Phase-locked loop, radar system and method for randomizing initial phases of FMCW signals12 May 2026US 12,625,245 B2Calterah Semiconductor Technology (Shanghai) Co., Ltd.
- Envelope-detector-less forward data receiving device5 May 2026US 12,620,934 B2Korea University Research and Business Foundation
- Magnetostatic wave resonator based scanning filter24 Sep 2026US 2026/0291460 A1BAE Systems Information and Electronic Systems Integration Inc.
- Polar digital frequency modulator27 Aug 2026US 2026/0254444 A1Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Non-uniform coarse dco steps for improved chirp linearity23 Jul 2026US 2026/0213756 A1NXP B. V.
- Absorption Terahertz Direct Modulator with Zero Reflection9 Jul 2026US 2026/0196704 A1University of Electronic Science and Technology of China
- Methods and apparatus for facilitating operation of remote agents in challenging environments11 Jun 2026US 2026/0163883 A1
Most cited
By later US patents
- Serial communication protocol for medical device579US 9,226,766 B2Ethicon Endo-Surgery, Inc. · 2016
- Digital radio frequency receiver350US 4,893,316 AMotorola, Inc. · 1990
- Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones346US 6,389,010 B1Intermec IP Corp. · 2002
- Method and apparatus for operating a radio-frequency power amplifier as a variable-class linear amplifier338US 6,043,707 AMotorola, Inc. · 2000
- Method and device relating to supervision and control of an oscillator signal327US 6,147,560 ATelefonaktiebolget LM Ericsson · 2000