7 Utility Patents
#200 in Westfield, NJ
#11,753 in New Jersey
#287,462 in US
#588,652 in the World
Forward Citations = 896
Company Filing History:


American Telephone & Telegraph Co., At&t Bell Laboratories
4. 1 out of 7
N.v. Philips' Gloeilampenfabrieken
where one patent can have more than one assignee
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