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Inventor

HONGFEN ZHAO

Inventor
CN

Overview

1→
Patents
2022
Patent span
Physics
Primary field (CPC G)

Patents· 1 as inventor

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

G01Fprimary
G01FMeasuring volume, volume flow, mass flow or liquid level25%
G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure25%
G01NInvestigating or analysing materials by determining their chemical or physical properties25%
G01RMeasuring electric variables25%
PatentTitleYear
11,300,638Laboratory test device for permeation grouting of impermeable material2022

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2022Patents assigned to UNIV SUN YAT SEN (1)· patent assignee history
2022Based in CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
UNIV SUN YAT SEN12022
Locations
LocationPatentsSpan
CN12022