Patents
.us
Search
Marketplace
Patent My Idea
Patents
/
Assignees
WUXI HENGXIN BEISHI TECHNOLOGY CO., Ltd
2 patents in portfolio
US11913312
utility
2024
Intelligent Oil Extraction System Using All-metal Screw Pump
0 cites
US11841018
utility
2023
All-metal Conical Combined Screw Pump Suitable for Petroleum Field
0 cites