Liping Ma

Person

Beijing, CN

People

Patents Grantslast 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
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
Method, transport apparatus, and system for detecting submarine opt...
- Patent number 9,276,672
- Issue date Mar 1, 2016
- Huawei Marine Networks Co., Ltd.
- Wendou Zhang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Numerical Simulation Method for the Overflowing of River Channel St...
- Publication number 20230169243
- Publication date Jun 1, 2023
- CHINA INSTITUTE OF WATER RESOURCES AND HYDROPOWER RESEARCH
- Dawei ZHANG
- G06 - COMPUTING CALCULATING COUNTING
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
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
Method, Apparatus, and System for Disaster Recovery of Optical Comm...
- Publication number 20140255020
- Publication date Sep 11, 2014
- HUAWEI MARINE NETWORKS CO., LTD.
- Wendou Zhang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD, TRANSPORT APPARATUS, AND SYSTEM FOR DETECTING SUBMARINE OPT...
- Publication number 20140086573
- Publication date Mar 27, 2014
- HUAWEI MARINE NETWORKS CO., LTD.
- Wendou Zhang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL ADD-DROP MULTIPLEXER BRANCHING UNIT AND CORRESPONDING OPTIC...
- Publication number 20120121267
- Publication date May 17, 2012
- HUAWEI MARINE NETWORKS CO., LTD.
- Guozhong WANG
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Person

Patents Grantslast 30 patents

Submarine network device

Reconfigurable optical add-drop multiplexer apparatus

Method, transport apparatus, and system for detecting submarine opt...

Patents Applicationslast 30 patents

Numerical Simulation Method for the Overflowing of River Channel St...

Submarine Optical Cable System

CABLE ACCESSORY DEVICE AND SUBMARINE CABLE ACCESSORY SYSTEM

SUBMARINE NETWORK DEVICE

SUBMARINE NETWORK DEVICE AND SUBMARINE CABLE SYSTEM

RECONFIGURABLE OPTICAL ADD-DROP MULTIPLEXER APPARATUS

Method, Apparatus, and System for Disaster Recovery of Optical Comm...

METHOD, TRANSPORT APPARATUS, AND SYSTEM FOR DETECTING SUBMARINE OPT...

OPTICAL ADD-DROP MULTIPLEXER BRANCHING UNIT AND CORRESPONDING OPTIC...