Yue LI

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Structure of rotor connection of multi-axial multi-stage roots pump
- Patent number 11,608,829
- Issue date Mar 21, 2023
- OVG VACUUM TECHNOLOGY (SHANGHAI) CO., LTD
- Yi Rong
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Driving structure of three-axis multi-stage roots pump
- Patent number 11,441,564
- Issue date Sep 13, 2022
- OVG VACUUM TECHNOLOGY (SHANGHAI) CO., LTD
- Yi Rong
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Pump housing structure of three-axis multi-stage Roots pump
- Patent number 11,339,783
- Issue date May 24, 2022
- OVG VACUUM TECHNOLOGY (SHANGHAI) CO., LTD
- Yi Rong
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Transmission structure of motor connection of roots pump
- Patent number 11,320,036
- Issue date May 3, 2022
- OVG VACUUM TECHNOLOGY (SHANGHAI) CO., LTD
- Yi Rong
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
STRUCTURE OF ROTOR CONNECTION OF MULTI-AXIAL MULTI-STAGE ROOTS PUMP
- Publication number 20210108636
- Publication date Apr 15, 2021
- OVG VACUUM TECHNOLOGY (SHANGHAI) CO., LTD.
- Yi Rong
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
ROOTS ROTOR FOR REMOVING DUST COAGULUM AND DROPLETS
- Publication number 20210108639
- Publication date Apr 15, 2021
- OVG VACUUM TECHNOLOGY (SHANGHAI) CO., LTD.
- Yi Rong
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Pump Housing Structure of Three-Axis Multi-Stage Roots Pump
- Publication number 20210088046
- Publication date Mar 25, 2021
- OVG VACUUM TECHNOLOGY (SHANGHAI) CO., LTD.
- Yi Rong
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Driving Structure of Three-Axis Multi-Stage Roots Pump
- Publication number 20210088044
- Publication date Mar 25, 2021
- OVG VACUUM TECHNOLOGY (SHANGHAI) CO., LTD.
- Yi Rong
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
TRANSMISSION STRUCTURE OF MOTOR CONNECTION OF ROOTS PUMP
- Publication number 20210088121
- Publication date Mar 25, 2021
- OVG VACUUM TECHNOLOGY (SHANGHAI) CO., LTD.
- Yi Rong
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...