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Inventor

Richard D. Nafziger

Inventor
Wheaton, IL, US

Overview

2→
Patents
1990–1991
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.

H04Qprimary
H04QSelecting100%
PatentTitleYear
5,056,134'Audible logo for identifying a common carrier'19914,930,154'Audible logo for identifying a common carrier'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–1991Patents assigned to AT & T BELL LAB (2)· patent assignee history
1990–1991Based in Wheaton, IL, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
AT & T BELL LAB21990–1991
Locations
LocationPatentsSpan
Wheaton, Illinois, US21990–1991