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Patents Grants
last 30 patents
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
Optical add/drop multiplexer branching unit
Patent number
9,768,899
Issue date
Sep 19, 2017
Huawei Marine Networks Co., Ltd.
Likun Zhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
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
OPTICAL ADD/DROP MULTIPLEXER BRANCHING UNIT
Publication number
20160308639
Publication date
Oct 20, 2016
HUAWEI MARINE NETWORKS CO., LTD.
Likun ZHANG
H04 - ELECTRIC COMMUNICATION TECHNIQUE