INTERNATIONAL PATENT: PETROCHINA COMPANY LIMITED, 中国石油天然气股份有限公司 FILES APPLICATION FOR "METHOD AND APPARATUS FOR DETERMINING ELBOW PASSAGE COUNT FOR DRAG-TYPE INTERNAL DETECTOR"

GENEVA, Oct. 26 -- PETROCHINA COMPANY LIMITED (9 Dongzhimen North Street,Dongcheng District, Beijing 100007), 中国石油天然气股份有限公司 (中国北京市东城区东直门北大街9号) filed a patent application (PCT/CN2024/142043) for "METHOD AND APPARATUS FOR DETERMINING ELBOW PASSAGE COUNT FOR DRAG-TYPE INTERNAL DETECTOR" on Dec 24, 2024. With publication no. WO/2025/218243, the details related to the patent application was published on Oct 23, 2025.

Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World I...