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Inventor

Dong Liu

Inventor
Palo Alto, CA, US

Overview

4→
Patents
2014–2021
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 4 as inventor

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

E21Bprimary
E21BEarth or rock drilling40%
F04DNon-positive-displacement pumps20%
F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants20%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes20%
PatentTitleYear
11,023,954Systems and methods for using a social networking system to purchase products20219,617,808'Continuous oil pipe clamp mechanism'20179,493,997'Floating clamping device for injection head of continuous oil pipe'20168,882,467'Centrifugal impeller'2014

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2014Patents assigned to JOHNSON ELECTRIC SA (1)· patent assignee history
2014Patents assigned to KWOK LO CHING (1)· patent assignee history
2014Based in Shenzhen, CN· patent location history
2016Patents assigned to FANG JILEI (1)· patent assignee history
2016Patents assigned to LIU DONG (1)· patent assignee history
2016Based in Shandong, CN· patent location history
2017Based in Yantai, CN· patent location history
2021Patents assigned to FACEBOOK INC (1)· patent assignee history
2021Based in Palo Alto, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FACEBOOK INC12021
FANG JILEI12016
JOHNSON ELECTRIC SA12014
KWOK LO CHING12014
LIU DONGself12016
Locations
LocationPatentsSpan
Palo Alto, California, US12021
Yantai, CN12017
Shandong, CN12016
Shenzhen, CN12014