Inventor · disambiguated record
John D. Birdsall
Also filed as: BIRDSALL JOHN · BIRDSALL JOHN D
9 granted patents·114 citations·filing 1975–1981
88Inventor score
Top patents by PatentIndex Score
9 records- 0194USD251993SRotatable music toyKOHNER INC·Filed 1977·Granted May 29, 1979·40 cites·1 claims
- 0276US4095743AFlexible track for electrically energized miniature vehiclesBIRDSALL JOHN D·Filed 1976·Granted Jun 20, 1978·25 cites·6 claims
- 0365US3980113APencil sharpenerHASBRO DEVELOPMENT CORP·Filed 1975·Granted Sep 14, 1976·18 cites·10 claims
- 0453US4411098AToy vehicleBIRDSALL JOHN D·Filed 1981·Granted Oct 25, 1983·13 cites·12 claims
- 0540US4443966AToy carBIRDSALL JOHN D·Filed 1981·Granted Apr 24, 1984·8 cites·6 claims
- 0638USD261017SCombined toy vehicle and steering device thereforMARX & CO LOUIS·Filed 1978·Granted Sep 29, 1981·3 cites·1 claims
- 0733US4224760ABubble-blowing dollMEGO CORP·Filed 1979·Granted Sep 30, 1980·4 cites·18 claims
- 0832USD243356SToy animal figure and riderBIRDSALL JOHN D·Filed 1975·Granted Feb 8, 1977·1 cites·1 claims
- 0930US4132412AGame board with pivotal planar memberBIRDSALL JOHN D·Filed 1976·Granted Jan 2, 1979·2 cites·11 claims
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