6 Utility Patents
#521 in Longmont, CO
#6,633 in Colorado
#336,514 in US
#695,270 in the World
Forward Citations = 302
Company Filing History:

At&t Company
Other
4. 1 out of 243

5. 1 out of 26
American Telephone and Telegraph Company; At&t Information Systems
where one patent can have more than one assignee
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