Inventor

Irving Chen

Inventor
San Francisco, CA, US

Overview

4→
Patents
1992–2021
Patent span
Physics
Primary field (CPC G)

Patents· 4 as inventor

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

H04Lprimary
H04LTransmission of digital information, e.g. telegraphic communication18%
B26FPerforating9%
B67BApplying closure members to bottles jars, or similar containers9%
G06FElectric digital data processing9%
G06KGraphical data reading9%
G06NComputing arrangements based on specific computational models9%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes9%
H04WWireless communication networks9%
LOC079%
Y10TTechnical subjects covered by former us classification9%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992Patents assigned to CHEN I CHENG (1)· patent assignee history
1992Based in Chung-Ho City, Taipei Hsien, TW· patent location history
1998Patents assigned to CELLAY INT INC (1)· patent assignee history
1998Based in Taipei, TW· patent location history
2021Patents assigned to SIFT SCIENCE 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
SIFT SCIENCE INC22021
CELLAY INT INC11998
CHEN I CHENGself11992
Locations
LocationPatentsSpan
San Francisco, California, US22021
Taipei, TW11998
Chung-Ho City, Taipei Hsien, TW11992