LexDanaLexDanabeta
Inventor

Licheng Yu

Inventor
Heilongjiang, CN

Overview

2→
Patents
2017–2020
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 2 as inventor

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

E21Bprimary
E21BEarth or rock drilling17%
F16JPistons17%
F16NLubricating17%
G06KGraphical data reading17%
H01RElectrically-conductive connections17%
H04MTelephonic communication17%
PatentTitleYear
10,760,367Wellhead sealing device of sucker-rod pumping machine20209,660,367'Smart card seat and electronic device'2017

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2017Patents assigned to XIAOMI INC (1)· patent assignee history
2017Based in Beijing, CN· patent location history
2020Patents assigned to SI KAO (1)· patent assignee history
2020Patents assigned to YU LICHENG (1)· patent assignee history
2020Based in Heilongjiang, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SI KAO12020
XIAOMI INC12017
YU LICHENGself12020
Locations
LocationPatentsSpan
Heilongjiang, CN12020
Beijing, CN12017