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Inventor

JIANSHEN LI

Inventor
CN

Overview

6→
Patents
2022–2025
Patent span
Chemistry
Primary field (CPC C)

Patents· 6 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 elsewhere36%
E21BEarth or rock drilling29%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds7%
C08LCompositions of macromolecular compounds7%
G01NInvestigating or analysing materials by determining their chemical or physical properties7%
G06TImage data processing or generation, in general7%
LOC267%
PatentTitleYear
12,392,704Apparatus and method for determining the static proppant-settling-velocity in fracturing fluids202512,098,327Degradable friction reducer for hydraulic fracturing treatments202412,098,326Degradable friction reducer for hydraulic fracturing treatments202412,049,588Delayed gelation polymer system for high temperature and high salinity applications202411,999,905Degradable friction reducer for hydraulic fracturing treatments2024D0948775Ceiling light2022

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2022–2025Based in CN· patent location history
2024–2025Patents assigned to BEIJING HUAMEI INC (5)· patent assignee history
2024–2025Patents assigned to CHINA NAT PETROLEUM CORP (5)· patent assignee history
2024–2025Patents assigned to CNPC USA CORP (5)· patent assignee history
2024Based in US· patent location history
2025Patents assigned to CHINA NAT PETROLUM CORPORATION (1)· patent assignee history
2025Patents assigned to CNPC US CORP (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BEIJING HUAMEI INC52024–2025
CHINA NAT PETROLEUM CORP52024–2025
CNPC USA CORP52024–2025
CHINA NAT PETROLUM CORPORATION12025
CNPC US CORP12025
Locations
LocationPatentsSpan
CN52022–2025
US12024