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Patents Grants
last 30 patents
Information
Patent Grant
Submarine network device
Patent number
11,955,764
Issue date
Apr 9, 2024
HMN Technologies Co., Limited
Changwu Xu
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Submarine cable fault determining method and apparatus
Patent number
11,265,080
Issue date
Mar 1, 2022
HMN Technologies Co., Limited
Changwu Xu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Reconfigurable optical add-drop multiplexer apparatus
Patent number
9,762,348
Issue date
Sep 12, 2017
Huawei Marine Networks Co., Ltd.
Wendou Zhang
G02 - OPTICS
Information
Patent Grant
Communications device and method
Patent number
9,705,593
Issue date
Jul 11, 2017
Huawei Marine Networks Co., Ltd.
Wendou Zhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
Submarine Optical Cable System
Publication number
20220308301
Publication date
Sep 29, 2022
HMN SMART CO., LIMITED
Changwu Xu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SUBMARINE CABLE FAULT DETERMINING METHOD AND APPARATUS
Publication number
20210218469
Publication date
Jul 15, 2021
HUAWEI MARINE NETWORKS CO., LTD.
Changwu XU
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CABLE ACCESSORY DEVICE AND SUBMARINE CABLE ACCESSORY SYSTEM
Publication number
20210116492
Publication date
Apr 22, 2021
HUAWEI MARINE NETWORKS CO., LTD.
Fei XU
G01 - MEASURING TESTING
Information
Patent Application
SUBMARINE NETWORK DEVICE
Publication number
20210028591
Publication date
Jan 28, 2021
HUAWEI MARINE NETWORKS CO., LTD.
Changwu XU
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SUBMARINE NETWORK DEVICE AND SUBMARINE CABLE SYSTEM
Publication number
20210021336
Publication date
Jan 21, 2021
HUAWEI MARINE NETWORKS CO., LTD.
Yan WANG
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
RECONFIGURABLE OPTICAL ADD-DROP MULTIPLEXER APPARATUS
Publication number
20160261360
Publication date
Sep 8, 2016
HUAWEI MARINE NETWORKS CO., LTD.
Wendou ZHANG
G02 - OPTICS
Information
Patent Application
COMMUNICATIONS DEVICE AND METHOD
Publication number
20150318926
Publication date
Nov 5, 2015
HUAWEI MARINE NETWORKS CO., LTD.
Wendou ZHANG
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SCHEDULING METHOD, APPARATUS, AND SYSTEM FOR AVOIDING DUAL-END MONI...
Publication number
20140010531
Publication date
Jan 9, 2014
HUAWEI MARINE NETWORKS CO., LTD.
Xiaobo HU
H04 - ELECTRIC COMMUNICATION TECHNIQUE