Inventor

YAO QIHUAI

CN4 patents

⚠️ This page may combine multiple inventors who share the name “YAO QIHUAI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

YAO QIHUAI

2 patents

US9017440B2Apr 28, 2015

Vortex device for separating cold gas and hot gas

YAO QIHUAI8 citations77

US9322272B2Apr 26, 2016

Planetary rotary type fluid motor or engine and compressor or pump

YAO QIHUAI0 citations27

BEIJING ROSTAR TECH CO LTD

2 patents

US11111918B2Sep 7, 2021

Rotary device, rotary system, and fluid machinery, to which press-actuated gate valve mechanism is applied

BEIJING ROSTAR TECH CO LTD0 citations35

US10215025B2Feb 26, 2019

Rotation device and rotor compressor and fluid motor having the same

BEIJING ROSTAR TECH CO LTD0 citations25