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Inventor

Chun P. Tam

Inventor
Naperville, IL, US

Overview

2→
Patents
1988–1991
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.

H04Mprimary
H04MTelephonic communication100%
PatentTitleYear
5,012,512'Telephone operator and agent to database communication arrangement'19914,776,004'Communication services method and apparatus'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988Patents assigned to AMERICAN TELEPHONE & TELEGRAPH (1)· patent assignee history
1988–1991Based in Naperville, IL, US· patent location history
1991Patents assigned to AT & T BELL LAB (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
AMERICAN TELEPHONE & TELEGRAPH11988
AT & T BELL LAB11991
Locations
LocationPatentsSpan
Naperville, Illinois, US21988–1991