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Wenfeng Chen
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Foshan, CN
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last 30 patents
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Patent Grant
Pipe fitting joint assembly
Patent number
11,346,479
Issue date
May 31, 2022
RIFENG ENTERPRISE (FOSHAN) CO., LTD.
Xiyong Lin
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Patents Applications
last 30 patents
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Patent Application
SEALING STRUCTURE
Publication number
20220307636
Publication date
Sep 29, 2022
RIFENG ENTERPRISE (FOSHAN) CO., LTD.
Zhenbin Diao
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
PIPE FITTING JOINT ASSEMBLY
Publication number
20200096145
Publication date
Mar 26, 2020
RIFENG ENTERPRISE (FOSHAN) CO., LTD.
Xiyong Lin
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...