H04J 14/04
Mode multiplex systems
H04J14/04 (Mode multiplex systems) appears on 206 US grants and 247 published applications in this corpus.
Search patents in H04J- Granted patents
- 206
- Published applications
- 247
- Assignees
- 117
- Inventors
- 450
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2001 | 1 | 1 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 2 | 1 |
| 2008 | 0 | 0 |
| 2009 | 2 | 0 |
| 2010 | 0 | 3 |
| 2011 | 1 | 1 |
| 2012 | 1 | 8 |
| 2013 | 6 | 9 |
| 2014 | 5 | 13 |
| 2015 | 14 | 22 |
| 2016 | 12 | 12 |
| 2017 | 19 | 24 |
| 2018 | 18 | 19 |
| 2019 | 20 | 22 |
| 2020 | 25 | 20 |
| 2021 | 13 | 15 |
| 2022 | 14 | 19 |
| 2023 | 10 | 17 |
| 2024 | 13 | 22 |
| 2025 | 18 | 8 |
| 2026 | 11 | 7 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Subband-based processing for optical channels25 Aug 2026US 12,719,573 B2QUALCOMM Incorporated
- Control channel design in orbital angular momentum (OAM) based communication system25 Aug 2026US 12,719,640 B2QUALCOMM Incorproated
- Equalization apparatus, optical transmission system, and equalization method28 Jul 2026US 12,695,507 B2NEC Corporation
- Optical signal amplification apparatus and method14 Jul 2026US 12,683,705 B2Huawei Technologies Co., Ltd.
- Multiplexed transmission by optical beam transformation23 Jun 2026US 12,665,694 B2University of Southern California
- Multi-core fiber for communication, and optical communication device13 Aug 2026US 2026/0235798 A1Fujikura Ltd.
- Optical input/output chip and distributed computing system30 Jul 2026US 2026/0222103 A1Silith Technology Pte. Ltd.
- Optical transmission link, optical transmission system and optical transmission method23 Jul 2026US 2026/0213868 A1NTT, Inc.
- External laser enabled co-packaged optics architectures30 Apr 2026US 2026/0121748 A1Juniper Networks, Inc.
- Iq dense coding method and device for sdm communication system on optical fiber12 Feb 2026US 2026/0046030 A1Mimopt Technology
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
- Broadband mode converter97US 6,628,859 B2TriQuint Technology Holding Co. · 2003
- Robustly stabilizing laser systems63US 7,565,084 B12009
- Method and apparatus for spatial domain multiplexing in optical fiber communications47US 7,174,067 B2Florida Institute of Technology · 2007
- Method and system for multiplexing optical communication signals45US 8,611,747 B1Cirrex Systems, LLC · 2013