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Hongwei ZHAO
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Qingdao, Shandong, CN
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Patents Grants
last 30 patents
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Patent Grant
Composite material vehicle body and composite material laying struc...
Patent number
11,780,507
Issue date
Oct 10, 2023
CRRC QINGDAO SIFANG CO., LTD.
Sansan Ding
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Patents Applications
last 30 patents
Information
Patent Application
ASSEMBLY-TYPE CAR BODY AND RAIL VEHICLE
Publication number
20230083245
Publication date
Mar 16, 2023
CRRC QINGDAO SIFANG CO., LTD.
Sansan DING
B61 - RAILWAYS
Information
Patent Application
COMPOSITE MATERIAL VEHICLE BODY AND COMPOSITE MATERIAL LAYING STRUC...
Publication number
20230061523
Publication date
Mar 2, 2023
CRRC QINGDAO SIFANG CO., LTD.
Sansan DING
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
FINITE ELEMENT SIMULATION DEVICE AND METHOD FOR CAR BODY LOCAL STRU...
Publication number
20180165408
Publication date
Jun 14, 2018
CRRC QINGDAO SIFANG CO., LTD.
Yunshuang MA
G06 - COMPUTING CALCULATING COUNTING