Inventor

Changbong Choi

Inventor
San Francisco, CA, US

Overview

4→
Patents
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.

E05Bprimary
E05BLocks13%
E05DHinges or suspension devices for doors, windows or wings13%
E05FDevices for moving wings into open or closed position13%
E05YIndexing scheme associated with subclasses e05d and e05f, relating to construction elements, electric control, power supply, power signal or transmission, user interfaces, mounting or coupling, details, accessories, auxiliary operations not otherwise provided for, application thereof13%
F25DRefrigerators13%
G06FElectric digital data processing13%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes13%
H04LTransmission of digital information, e.g. telegraphic communication13%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2021Patents assigned to FACEBOOK INC (2)· patent assignee history
2021Patents assigned to LG ELECTRONICS INC (2)· patent assignee history
2021Based in San Francisco, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FACEBOOK INC22021
LG ELECTRONICS INC22021
Locations
LocationPatentsSpan
San Francisco, California, US22021