H04J 14/0216
Bidirectional architectures
Official title: {Bidirectional architectures}
H04J14/0216 (Bidirectional architectures) appears on 142 US grants and 174 published applications in this corpus.
Search patents in H04J- Granted patents
- 142
- Published applications
- 174
- Assignees
- 89
- Inventors
- 341
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 11 | 4 |
| 2002 | 7 | 36 |
| 2003 | 8 | 10 |
| 2004 | 3 | 12 |
| 2005 | 5 | 13 |
| 2006 | 10 | 3 |
| 2007 | 8 | 8 |
| 2008 | 4 | 7 |
| 2009 | 3 | 0 |
| 2010 | 5 | 2 |
| 2011 | 2 | 4 |
| 2012 | 1 | 0 |
| 2013 | 2 | 8 |
| 2014 | 7 | 4 |
| 2015 | 4 | 2 |
| 2016 | 4 | 5 |
| 2017 | 4 | 6 |
| 2018 | 5 | 7 |
| 2019 | 7 | 6 |
| 2020 | 7 | 9 |
| 2021 | 6 | 8 |
| 2022 | 8 | 6 |
| 2023 | 9 | 4 |
| 2024 | 2 | 3 |
| 2025 | 2 | 5 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Control of ONU activation in high bit rate PONs7 Apr 2026US 12,598,406 B2
- ROADM architecture for wide spectrum channels30 Sep 2025US 12,432,004 B2Ciena Corporation
- Wavelength-division-multiplexing optical circuit implemented in photonic integrated circuit for optical transmitter25 Feb 2025US 12,237,913 B2II-Vi Delaware, Inc.
- Process margin relaxation9 Jul 2024US 12,035,082 B2Cisco Technology, Inc.
- Efficient spectrum allocation in a multi-node optical network11 Jun 2024US 12,009,910 B2Microsoft Technology Licensing, LLC
- Optical Distribution Node, Communication Network Node and Communication Network27 Aug 2026US 2026/0254551 A1
- Bidirectional wavelength access system12 Mar 2026US 2026/0074817 A1Chunghwa Telecom Co., Ltd.
- Wavelength-division-multiplexing optical circuit implemented in photonic integrated circuit for optical transmitter5 Jun 2025US 2025/0184029 A1II-Vi Delaware, Inc.
- Optical transmission control apparatus, optical transmission system, and method for optical transmission control apparatus15 May 2025US 2025/0158732 A1NEC Corporation
- Balanced optical communication networks13 Feb 2025US 2025/0055589 A1Lightmatter, Inc.
Most cited
By later US patents
- Article comprising a wavelength-selective add-drop multiplexer111US 5,974,207 ALucent Technologies Inc. · 1999
- Dense wavelength division multiplexer and demultiplexer devices106US 5,748,350 AE-Tek Dynamics, Inc. · 1998
- Multichannel optical fiber communications89US 5,633,741 ALucent Technologies Inc. · 1997
- Optical branching apparatus and transmission line setting method therefor79US 5,822,474 ANEC Corporation · 1998
- WDM optical communication system with channels supporting multiple data formats54US 6,288,811 B1Seneca Networks · 2001