H04J 14/0212
Using optical switches or wavelength selective switches [wss]
Official title: {using optical switches or wavelength selective switches [WSS]}
H04J14/0212 (Using optical switches or wavelength selective switches [wss]) appears on 766 US grants and 827 published applications in this corpus.
Search patents in H04J- Granted patents
- 766
- Published applications
- 827
- Assignees
- 232
- Inventors
- 1,336
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 6 | 0 |
| 1998 | 3 | 0 |
| 1999 | 9 | 0 |
| 2000 | 16 | 0 |
| 2001 | 15 | 3 |
| 2002 | 16 | 47 |
| 2003 | 24 | 23 |
| 2004 | 17 | 32 |
| 2005 | 18 | 13 |
| 2006 | 27 | 24 |
| 2007 | 21 | 18 |
| 2008 | 15 | 31 |
| 2009 | 20 | 35 |
| 2010 | 35 | 45 |
| 2011 | 21 | 44 |
| 2012 | 42 | 54 |
| 2013 | 38 | 59 |
| 2014 | 56 | 36 |
| 2015 | 48 | 23 |
| 2016 | 37 | 41 |
| 2017 | 42 | 35 |
| 2018 | 31 | 35 |
| 2019 | 45 | 26 |
| 2020 | 31 | 28 |
| 2021 | 26 | 15 |
| 2022 | 19 | 24 |
| 2023 | 11 | 38 |
| 2024 | 20 | 32 |
| 2025 | 29 | 39 |
| 2026 | 25 | 27 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Optical fiber input/output tray with wavelength division multiplexing support for a co-packaged optical switch6 Oct 2026US 12,756,492 B2Quanta Computer Inc.
- Optical fiber test method, ROADM system, server and storage medium29 Sep 2026US 12,750,152 B2Zte Corporation
- Broadband polarization-entangled system for C+L-band flex-grid quantum networks15 Sep 2026US 12,739,047 B2UT-Battelle, LLC
- Multi-rail routing and spectrum assignment15 Sep 2026US 12,739,539 B2Ciena Corporation
- Control apparatus, communication system, control method and program8 Sep 2026US 12,732,299 B2NTT, Inc.
- Silicon backplanes for a liquid crystal on silicon (lcos) phase modulator1 Oct 2026US 2026/0304011 A1Molex Incorporated
- Optical network component configuration27 Aug 2026US 2026/0254550 A1Telefonaktiebolaget LM Ericsson (publ)
- Optical Transmission Apparatus13 Aug 2026US 2026/0238370 A1NTT, Inc.
- Photonic integrated wavelength-selective switch13 Aug 2026US 2026/0238371 A1SRI International
- Optical switching apparatus, optical add/drop multiplexer and communications network node30 Jul 2026US 2026/0222101 A1Telefonaktiebolaget LM Ericsson (publ)
Most cited
By later US patents
- Wavelength-selective optical add/drop using tilting micro-mirrors256US 5,960,133 ATellium, Inc. · 1999
- Modular all-optical cross-connect126US 6,614,953 B2Photuris, Inc. · 2003
- Article comprising a wavelength-selective add-drop multiplexer111US 5,974,207 ALucent Technologies Inc. · 1999
- Optical wavelength division multiplexed network system110US 5,717,795 AKabushiki Kaisha Toshiba · 1998
- Tunable add/drop optical filter108US 5,606,439 AMacro-Vision Technology , Inc. · 1997