LexDanaLexDanabeta
Inventor

Fangshi Liu

Inventor
Suzhou, CN

Overview

3→
Patents
2020–2021
Patent span
Human necessities
Primary field (CPC A)

Patents· 3 as inventor

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

A01Dprimary
A01DHarvesting20%
A47LDomestic washing or cleaning10%
B23KSoldering or unsoldering10%
B60LPropulsion of electrically-propelled vehicles10%
C21DModifying the physical structure of ferrous metals10%
E21BEarth or rock drilling10%
G05DSystems for controlling or regulating non-electric variables10%
H02JElectric power networks10%
Y02TClimate change mitigation technologies related to transportation10%
PatentTitleYear
10,967,752Autonomous mobile device and wireless charging system thereof202110,939,613Grass trimmer and cord delivering method of grass trimmer202110,648,049Heat treated heavy weight drill pipe2020

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2020Patents assigned to WELLBORE INTEGRITY SOLUTIONS LLC (1)· patent assignee history
2020Based in Houston, TX, US· patent location history
2021Patents assigned to POSITEC POWER TOOLS SUZHOU CO LTD (2)· patent assignee history
2021Based in Suzhou, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
POSITEC POWER TOOLS SUZHOU CO LTD22021
WELLBORE INTEGRITY SOLUTIONS LLC12020
Locations
LocationPatentsSpan
Suzhou, CN22021
Houston, Texas, US12020