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Inventor

Jiansheng LUO

Inventor
CN

Overview

2→
Patents
2023
Patent span
Chemistry
Primary field (CPC C)

Patents· 2 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C09Kprimary
C09KMaterials for miscellaneous applications, not provided for elsewhere50%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds25%
C08LCompositions of macromolecular compounds25%
PatentTitleYear
11,787,990Bionic and dual-phobic high-performance water-based drilling fluid202311,578,251Amphiphilic block polymer ultralow-permeability agent and intelligent temporary plugging type water-based drilling fluid2023

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2023Patents assigned to UNIV CHINA PETROLEUM BEIJING (2)· patent assignee history
2023Patents assigned to CNPC CHUANQING DRILLING ENG CO (1)· patent assignee history
2023Patents assigned to CNPC ENG TECH RES & DEV CO LTD (1)· patent assignee history
2023Based in CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
UNIV CHINA PETROLEUM BEIJING22023
CNPC CHUANQING DRILLING ENG CO12023
CNPC ENG TECH RES & DEV CO LTD12023
Locations
LocationPatentsSpan
CN22023