18 Utility Patents
#64 in Chengdu
#6,515 in China
#195,919 in the World
Forward Citations = 25
Company Filing History:

Southwest Petroleum University
Shale Gas Research Institute, Petrochina Southwest Oil and Gas Field Company
4. 1 out of 1
Sichuan Hengyi Petroleum Technology Services Co., Ltd
where one patent can have more than one assignee
Get your Inventor Badge Today