6 Utility Patents
#26 in West Chicago, IL
#13,111 in Illinois
#337,191 in US
#697,517 in the World
Forward Citations = 422
Company Filing History:


At&t Laboratories, Limited
4. 1 out of 3,345

5. 1 out of 745
American Telephone & Telegraph Co., At&t Bell Laboratories
where one patent can have more than one assignee
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