Communications: electrical – Condition responsive indicating system – With particular coupling link
Reexamination Certificate
2005-03-29
2008-09-02
Hofsass, Jeff (Department: 2612)
Communications: electrical
Condition responsive indicating system
With particular coupling link
C340S870030, C705S014270, C342S357490, C342S357490
Reexamination Certificate
active
07420464
ABSTRACT:
Methods and systems for tracking movements of participants in a market research study, for example, outside retail establishments, are provided. The methods and systems employ portable monitors carried on the persons of the participants to gather location data.
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Crystal Jack C.
Fitzgerald Joan
Flanagan, III Eugene L.
Forr David Patrick
Jensen James M.
Arbitron Inc.
Hofsass Jeff
Katten Muchin Rosenman
Lai Anne V.
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