LexDanaLexDanabeta
Inventor

Zhenlei Li

Inventor
Beijing, CN

Overview

2→
Patents
2020–2021
Patent span
Physics
Primary field (CPC G)

Patents· 2 as inventor

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

G01Nprimary
G01NInvestigating or analysing materials by determining their chemical or physical properties20%
A61FFilters implantable into blood vessels10%
E21FSafety devices, transport, filling-up, rescue, ventilation, or draining in or of mines or tunnels10%
G01DMeasuring not specially adapted for a specific variable10%
G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure10%
G01VGeophysics10%
G08BSignalling systems, e.g. personal calling systems10%
H02JElectric power networks10%
H05KPrinted circuits10%
PatentTitleYear
10,884,154Monitoring and forewarning method for coal-rock dynamic disasters based on electromagnetic radiation and earth sound202110,624,796Built-in detection device and detection method thereof for disposable diapers2020

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2020Patents assigned to CHENGDU FANMI TECH CO LTD (1)· patent assignee history
2020Based in Chengdu, CN· patent location history
2021Patents assigned to UNIV BEIJING SCIENCE & TECHNOLOGY (1)· patent assignee history
2021Patents assigned to ZHONG AN ACADEMY OF SAFETY ENG (1)· patent assignee history
2021Based in Beijing, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CHENGDU FANMI TECH CO LTD12020
UNIV BEIJING SCIENCE & TECHNOLOGY12021
ZHONG AN ACADEMY OF SAFETY ENG12021
Locations
LocationPatentsSpan
Beijing, CN12021
Chengdu, CN12020