H04B 10/2581
Multimode transmission
H04B10/2581 (Multimode transmission) appears on 586 US grants and 638 published applications in this corpus.
Search patents in H04B- Granted patents
- 586
- Published applications
- 638
- Assignees
- 291
- Inventors
- 1,113
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 6 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 6 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 1 |
| 2002 | 5 | 7 |
| 2003 | 5 | 4 |
| 2004 | 4 | 9 |
| 2005 | 7 | 10 |
| 2006 | 7 | 10 |
| 2007 | 11 | 18 |
| 2008 | 13 | 4 |
| 2009 | 2 | 4 |
| 2010 | 4 | 11 |
| 2011 | 6 | 9 |
| 2012 | 6 | 23 |
| 2013 | 9 | 18 |
| 2014 | 25 | 36 |
| 2015 | 20 | 35 |
| 2016 | 41 | 45 |
| 2017 | 37 | 54 |
| 2018 | 53 | 56 |
| 2019 | 53 | 48 |
| 2020 | 51 | 43 |
| 2021 | 34 | 31 |
| 2022 | 38 | 39 |
| 2023 | 27 | 43 |
| 2024 | 25 | 32 |
| 2025 | 32 | 27 |
| 2026 | 17 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Metasurface-based optical signal manipulation devices for optical fiber communications28 Jul 2026US 12,693,473 B2Corning Incorporated
- Equalization apparatus, optical transmission system, and equalization method28 Jul 2026US 12,695,507 B2NEC Corporation
- Assembly for transmitting light and optical transceiver including same8 Oct 2026US 2026/0312685 A1Optomind Inc.
- Optical transmitter with quad-wire differential optical modulator and driver1 Oct 2026US 2026/0303221 A1Ciena Corporation
- High speed optical receiver system3 Sep 2026US 2026/0261347 A1Taiwan Semiconductor Manufacturing Company.Ltd
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- Optical input/output chip and distributed computing system30 Jul 2026US 2026/0222103 A1Silith Technology Pte. Ltd.
Most cited
By later US patents
- Transmission device with mode division multiplexing and methods for use therewith487US 9,544,006 B2AT&T Intellectual Property I, L. P. · 2017
- Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith468US 9,627,768 B2AT&T Intellectual Property I, L. P. · 2017
- Multi-core optical fiber and optical communication systems227US 8,503,845 B2Alcatel Lucent · 2013
- Apparatus for launching or detecting waves of selected modes in an optical dielectric waveguide208US 4,125,768 AThe Post Office · 1978
- Wide band multicore optical fiber165US 4,300,816 AUnited Technologies Corporation · 1981