H04B 10/50
Transmitters
H04B10/50 (Transmitters) appears on 8,331 US grants and 8,546 published applications in this corpus.
Search patents in H04B- Granted patents
- 8,331
- Published applications
- 8,546
- Assignees
- 1,882
- Inventors
- 11,758
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 8 | 0 |
| 1978 | 7 | 0 |
| 1979 | 6 | 0 |
| 1980 | 4 | 0 |
| 1981 | 14 | 0 |
| 1982 | 8 | 0 |
| 1983 | 15 | 0 |
| 1984 | 10 | 0 |
| 1985 | 10 | 0 |
| 1986 | 10 | 0 |
| 1987 | 15 | 0 |
| 1988 | 19 | 0 |
| 1989 | 18 | 0 |
| 1990 | 23 | 0 |
| 1991 | 51 | 0 |
| 1992 | 36 | 0 |
| 1993 | 34 | 0 |
| 1994 | 57 | 0 |
| 1995 | 41 | 0 |
| 1996 | 31 | 0 |
| 1997 | 32 | 0 |
| 1998 | 62 | 0 |
| 1999 | 62 | 0 |
| 2000 | 80 | 0 |
| 2001 | 92 | 36 |
| 2002 | 100 | 173 |
| 2003 | 138 | 198 |
| 2004 | 106 | 219 |
| 2005 | 98 | 212 |
| 2006 | 180 | 169 |
| 2007 | 124 | 161 |
| 2008 | 146 | 146 |
| 2009 | 139 | 174 |
| 2010 | 139 | 170 |
| 2011 | 143 | 167 |
| 2012 | 143 | 214 |
| 2013 | 167 | 238 |
| 2014 | 260 | 306 |
| 2015 | 315 | 414 |
| 2016 | 421 | 466 |
| 2017 | 518 | 605 |
| 2018 | 545 | 617 |
| 2019 | 742 | 626 |
| 2020 | 627 | 586 |
| 2021 | 542 | 530 |
| 2022 | 503 | 558 |
| 2023 | 441 | 423 |
| 2024 | 441 | 462 |
| 2025 | 352 | 365 |
| 2026 | 248 | 311 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Optical wireless transmission system, transmission device, and optical wireless transmission method6 Oct 2026US 12,756,463 B2NEC Corporation
- Electronic devices employing optical communications6 Oct 2026US 12,756,464 B2Hewlett-Packard Development Company, L. P.
- Optical communication system, optical transmitting and receiving apparatus, and optical communication method6 Oct 2026US 12,756,471 B2NTT, Inc.
- Beat-note stabilized laser with received-power tracker6 Oct 2026US 12,756,474 B2ColdQuanta, Inc.
- Independent channel control in coherent optics6 Oct 2026US 12,756,475 B2Hewlett Packard Enterprise Development LP
- Assembly for transmitting light and optical transceiver including same8 Oct 2026US 2026/0312685 A1Optomind Inc.
- Microwave photon broadband phase-stabilized transmission center station based on amplitude-phase multiplexing and transmission system having the same8 Oct 2026US 2026/0312686 A1China Electronics Technology Group Corporation No 44 Research Institute
- Optical relay apparatus, optical transmission system, and optical relay method8 Oct 2026US 2026/0312687 A1NEC Corporation
- Optical transmission system and operating method thereof8 Oct 2026US 2026/0312690 A1Agency for Defense Development
- Multi-Band Software-Defined Radio System for Detecting Surroundings, as Well as Methods and Motor Vehicle8 Oct 2026US 2026/0312691 A1Volkswagen Aktiengesellschaft
Most cited
By later US patents
- Quasi-optical coupler578US 9,209,902 B2AT&T Intellectual Property I, L. P. · 2015
- Method and apparatus for an L.E.D. flashlight530US 6,095,661 APPT Vision, Inc. · 2000
- Optical communications network466US 4,977,593 ABritish Telecommunications plc · 1990
- Crosstalk-free signal source for dense wavelength division multiplexed systems308US 6,233,080 B1Ciena Corporation · 2001
- Living body inspecting apparatus and noninvasive blood analyzer using the same270US 6,353,750 B1Sysmex Corporation · 2002