H04B 2210/00
Indexing scheme relating to optical transmission systems
H04B2210/00 (Indexing scheme relating to optical transmission systems) appears on 1,808 US grants and 1,496 published applications in this corpus.
Search patents in H04B- Granted patents
- 1,808
- Published applications
- 1,496
- Assignees
- 544
- Inventors
- 3,054
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 7 | 0 |
| 1991 | 9 | 0 |
| 1992 | 8 | 0 |
| 1993 | 7 | 0 |
| 1994 | 13 | 0 |
| 1995 | 27 | 0 |
| 1996 | 31 | 0 |
| 1997 | 22 | 0 |
| 1998 | 37 | 0 |
| 1999 | 53 | 0 |
| 2000 | 52 | 0 |
| 2001 | 75 | 34 |
| 2002 | 85 | 96 |
| 2003 | 80 | 109 |
| 2004 | 69 | 116 |
| 2005 | 81 | 74 |
| 2006 | 88 | 51 |
| 2007 | 56 | 45 |
| 2008 | 57 | 36 |
| 2009 | 35 | 46 |
| 2010 | 44 | 34 |
| 2011 | 23 | 44 |
| 2012 | 48 | 42 |
| 2013 | 46 | 43 |
| 2014 | 53 | 47 |
| 2015 | 50 | 45 |
| 2016 | 51 | 52 |
| 2017 | 65 | 64 |
| 2018 | 74 | 75 |
| 2019 | 89 | 80 |
| 2020 | 68 | 65 |
| 2021 | 66 | 51 |
| 2022 | 57 | 56 |
| 2023 | 56 | 64 |
| 2024 | 44 | 52 |
| 2025 | 40 | 39 |
| 2026 | 27 | 36 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04B 2210/07Monitoring an optical transmission system using a supervisory signalIndexing code574
- H04B 2210/25Distortion or dispersion compensationIndexing code513
- H04B 2210/006Devices for generating or processing an rf signal by optical meansIndexing code410
- H04B 2210/003Devices including multiple stagesIndexing code261
- H04B 2210/08Shut-down or eye-safetyIndexing code113
- H04B 2210/517Optical nrz to rz conversion, or vice versaIndexing code22
- H04B 2210/516Optical conversion of optical modulation formatsIndexing code14
Recent patents
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- Multi-channel analog-signal-input to digital-signal-output down-conversion and digital-signal-input to analog-signal-output up-conversion photonics microwave systems based on quantum dot multi-wavelength lasers6 Oct 2026US 12,756,481 B2
- Methods and apparatuses providing optical beamforming crossbar arrays for radio communications6 Oct 2026US 12,756,482 B2Huawei Technologies Co., Ltd.
- Digital pulse-position noise shift keying to communicate information8 Sep 2026US 12,732,401 B2The Boeing Company
- Microwave photonic system and method for cancelling leakage interference of phased array antennas1 Sep 2026US 12,725,920 B2Dalian University of Technology
- Communication system, communication method, and recording medium10 Sep 2026US 2026/0269872 A1NEC Corporation
- Variable coupler3 Sep 2026US 2026/0259383 A1Taara Connect, Inc.
- Remote alternating current (ac) power control system for cable network maintenance13 Aug 2026US 2026/0238340 A1Charter Communications Operating, LLC
- Metal Embedded RF Photonic Assembly For Compact Millimeter Wave Emitter Array16 Jul 2026US 2026/0205201 A1HRL Laboratories, LLC
- Beamforming system9 Jul 2026US 2026/0196724 A1Huawei Technologies Co., Ltd.
Most cited
By later US patents
- Method and system for detecting optical faults within the optical domain of a fiber communication network248US 6,005,694 AMCI WorldCom, Inc. · 1999
- Apparatus and method for delivery of dispersion-compensated ultrashort optical pulses with high peak power220US 6,249,630 B1Imra America, Inc. · 2001
- Method of activating optical communication system, channel increasing/decreasing method, and computer-readable recording medium165US 6,839,160 B2Fujitsu Limited · 2005
- Method and system for transporting ancillary network data160US 6,108,113 AMCI Communications Corporation · 2000
- Method and apparatus for monitoring performance of optical transmission systems159US 5,513,029 ANorthern Telecom Limited · 1996