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Inventor

Ya Liu

Inventor
Beijing, CN

Overview

2→
Patents
2019–2020
Patent span
Electricity
Primary field (CPC H)

Patents· 2 as inventor

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

E21Bprimary
E21BEarth or rock drilling20%
F42DBlasting20%
H02HEmergency protective circuit arrangements20%
H02JElectric power networks20%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems20%
PatentTitleYear
10,822,913Energy-gathered bundle type nesting plugging and wall reinforcing device and application thereof in karst cave plugging202010,224,708Over-temperature protection system of a charging device2019

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2019Patents assigned to JIANGYIN SINBON ELECTRONICS CO LTD (1)· patent assignee history
2019Based in Jiangyin, CN· patent location history
2020Patents assigned to CHINA UNIV OF PETROLEUM—BEIJING (1)· patent assignee history
2020Patents assigned to UNIV CHINA PETROLEUM BEIJING (1)· patent assignee history
2020Based in Beijing, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CHINA UNIV OF PETROLEUM—BEIJING12020
JIANGYIN SINBON ELECTRONICS CO LTD12019
UNIV CHINA PETROLEUM BEIJING12020
Locations
LocationPatentsSpan
Beijing, CN12020
Jiangyin, CN12019