19 Utility Patents
#364 in Ann Arbor, MI
#3,521 in Michigan
#91,695 in US
#181,112 in the World
Forward Citations = 596
Company Filing History:
Port Systems, L.l.c.
Other

4. 2 out of 7
Tsrl, Inc.
5. 1 out of 889

where one patent can have more than one assignee
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