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Inventor

Dongfei Wang

Inventor
Ningbo, CN

Overview

3→
Patents
2019–2021
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 3 as inventor

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

E02Dprimary
E02DFoundations25%
H04NPictorial communication, e.g. television25%
LOC2125%
Y02ATechnologies for adaptation to climate change25%
PatentTitleYear
D0920449Adjustable dumbbell202110,577,770Self-starting negative pressure drainage system for draining groundwater in slope and construction method thereof202010,321,181Conditional access method and system for intelligent operating system2019

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2019Patents assigned to ACAD OF BROADCASTING SCIENCE STATE ADMINISTRATION OF PRESS PUBLICATION RADIO FILM & TELEVISION (1)· patent assignee history
2019Patents assigned to BEIJING NOVEL SUPER DIGITAL TV TECH CO LTD (1)· patent assignee history
2019Based in Beijing, CN· patent location history
2020Patents assigned to UNIV ZHEJIANG (1)· patent assignee history
2020Based in Zhejiang, CN· patent location history
2021Patents assigned to WANG DANNI (1)· patent assignee history
2021Based in Ningbo, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ACAD OF BROADCASTING SCIENCE STATE ADMINISTRATION OF PRESS PUBLICATION RADIO FILM & TELEVISION12019
BEIJING NOVEL SUPER DIGITAL TV TECH CO LTD12019
UNIV ZHEJIANG12020
WANG DANNIself12021
Locations
LocationPatentsSpan
Ningbo, CN12021
Zhejiang, CN12020
Beijing, CN12019