Individual holder
TYRREL SYLVAN F
3 granted patents·69 citations·filing 1975–1996
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0182US4016555ASignal converterTYRREL SYLVAN F·Filed 1975·Granted Apr 5, 1977·30 cites·29 claims
- 0254US4137525ASignal converterTYRREL SYLVAN F·Filed 1976·Granted Jan 30, 1979·9 cites·6 claims
- 0346US5896457ALight enhanced sound device and methodTYRREL SYLVAN F·Filed 1996·Granted Apr 20, 1999·30 cites·47 claims
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