Inventor

Defu Liu

Inventor

Shenzhen, CN

Overview

2016–2021

Patent span

Performing operations

Primary field (CPC B)

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

A63Hprimary

A63HToys, e.g. tops, dolls, hoops or building blocks11%

B25JManipulators11%

B62DMotor vehicles7%

A01KAnimal husbandry4%

A01MCatching, trapping or scaring of animals4%

A45BWalking sticks4%

B60BVehicle wheels4%

B60PVehicles adapted for load transportation or to transport, to carry, or to comprise special loads or objects4%

B62BHand-propelled vehicles, e.g. hand carts or perambulators4%

E04HBuildings or like structures for particular purposes4%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

2016Patents assigned to UNIV CHINA THREE GORGES CTGU (1)· patent assignee history

2016Based in Hubei, CN· patent location history

2018Patents assigned to LINHAI BAOCHENG CRAFTS CO LTD (1)· patent assignee history

2018Based in Linhai, CN· patent location history

2020Patents assigned to UBTECH ROBOTICS CORP (3)· patent assignee history

2020–2021Based in Shenzhen, CN· patent location history

2021Patents assigned to HUAWEI TECH CO LTD (1)· patent assignee history

2021Patents assigned to YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO LTD (1)· patent assignee history

2021Based in Yantai, CN· patent location history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
UBTECH ROBOTICS CORP	3	2020
HUAWEI TECH CO LTD	1	2021
LINHAI BAOCHENG CRAFTS CO LTD	1	2018
UNIV CHINA THREE GORGES CTGU	1	2016
YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO LTD	1	2021

Locations