Inventor

CHEN JIMENG

CN4 patents

Patents

4 patents

US11313477B2Apr 26, 2022

Ball valve with forced-sealing operation

ZIBO VOTAISI PETROCHEMICAL EQUIPMENT CO LTD2 citations68

US10920893B2Feb 16, 2021

Cage reset planetary roller screw device

ZIBO VOTAISI PETROCHEMICAL EQUIPMENT CO LTD1 citations56

US11149826B1Oct 19, 2021

Planetary rolling micro-jacking device

ZIBO VOTAISI PETROCHEMICAL EQUIPMENT CO LTD0 citations53

US10859169B2Dec 8, 2020

Valve seat driven forced seal ball valve

ZIBO VOTAISI PETROCHEMICAL EQUIPMENT CO LTD0 citations45