Individual holder
BIRDSALL JOHN D
5 granted patents·49 citations·filing 1975–1981
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
5 records- 0176US4095743AFlexible track for electrically energized miniature vehiclesBIRDSALL JOHN D·Filed 1976·Granted Jun 20, 1978·25 cites·6 claims
- 0253US4411098AToy vehicleBIRDSALL JOHN D·Filed 1981·Granted Oct 25, 1983·13 cites·12 claims
- 0340US4443966AToy carBIRDSALL JOHN D·Filed 1981·Granted Apr 24, 1984·8 cites·6 claims
- 0432USD243356SToy animal figure and riderBIRDSALL JOHN D·Filed 1975·Granted Feb 8, 1977·1 cites·1 claims
- 0530US4132412AGame board with pivotal planar memberBIRDSALL JOHN D·Filed 1976·Granted Jan 2, 1979·2 cites·11 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →