Inventor

Chen-Pei D. Tu

Inventor
Sammamish, WA, US

Overview

3→
Patents
1991–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 3 as inventor

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

C12Nprimary
C12NMicroorganisms or enzymes25%
H03MCoding25%
H04LTransmission of digital information, e.g. telegraphic communication25%
H04NPictorial communication, e.g. television25%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991Patents assigned to CIBA GEIGY CORP (1)· patent assignee history
1991Patents assigned to PENNSYLVANIA RES CORP (1)· patent assignee history
1991Based in State College, PA, US· patent location history
2021Patents assigned to AVAGO TECH INT SALES PTE LID (1)· patent assignee history
2021Patents assigned to MICROSOFT TECHNOLOGY LICENSING LLC (1)· patent assignee history
2021Based in Sammamish, WA, US· patent location history
2021Based in Irvine, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
AVAGO TECH INT SALES PTE LID12021
CIBA GEIGY CORP11991
MICROSOFT TECHNOLOGY LICENSING LLC12021
PENNSYLVANIA RES CORP11991
Locations
LocationPatentsSpan
Sammamish, Washington, US12021
Irvine, California, US12021
State College, Pennsylvania, US11991