Assignee
R D PERCY & COMPANY
US·4 granted patents·811 citations·filing 1977–1986
Top patents by PatentIndex Score
4 records- 0197US4107735ATelevision audience survey system providing feedback of cumulative survey results to individual television viewersR D PERCY & COMPANY·Filed 1977·Granted Aug 15, 1978·210 cites·49 claims
- 0294US4107734ATelevision viewer reaction determining systemR D PERCY & COMPANY·Filed 1977·Granted Aug 15, 1978·215 cites·20 claims
- 0391US4308554ATelevision viewer reaction determining systemR D PERCY & COMPANY·Filed 1978·Granted Dec 29, 1981·111 cites·12 claims
- 0488US4769697APassive television audience measuring systemsR D PERCY & COMPANY·Filed 1986·Granted Sep 6, 1988·275 cites·35 claims
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