Inventor
LIU DESHUN
CN3 patents
Patents
3 patentsUS11371298B2Jun 28, 2022
Support device for rotation of high-capacity and compact drill pipe storage unit of seabed drilling rig in lying state
UNIV HUNAN SCIENCE & TECHNOLOGY0 citations47
US12480852B2Nov 25, 2025
Pretension and tensile impact test apparatus capable of simulating full-sea-depth environment
UNIV HUNAN SCIENCE & TECHNOLOGY0 citations44
US12436060B2Oct 7, 2025
Testing device for simulating frictional wear behaviors of threaded joint of drill pipe under turbid seafloor environment
UNIV HUNAN SCIENCE & TECHNOLOGY0 citations43