Inventor · disambiguated record
Frederick H. Kroll
Also filed as: KROLL FREDERICK H
18 granted patents·209 citations·filing 1975–2000
95Inventor score
Files withKROLL FREDERICK H17
Top patents by PatentIndex Score
18 records- 0191USD258205SHalloween bag, or similar articleKROLL FREDERICK H·Filed 1978·Granted Feb 10, 1981·25 cites·1 claims
- 0285USD257309SChiropractic pillow, or similar articleKROLL FREDERICK H·Filed 1979·Granted Oct 14, 1980·18 cites·1 claims
- 0384USD262899SToy writing slateKROLL FREDERICK H·Filed 1979·Granted Feb 2, 1982·17 cites·1 claims
- 0479USD247441SChild's portable drawing, game and play box, or similar articleKROLL FREDERICK H·Filed 1975·Granted Mar 7, 1978·14 cites·1 claims
- 0576USD276384SInflatable baby bedKROLL FREDERICK H·Filed 1982·Granted Nov 20, 1984·14 cites·1 claims
- 0675USD288943SToy activity bookKROLL FREDERICK H·Filed 1984·Granted Mar 24, 1987·13 cites·1 claims
- 0775USD259498SPeg game chestKROLL FREDERICK H·Filed 1979·Granted Jun 9, 1981·11 cites·1 claims
- 0874USD282088SToy vanKROLL FREDERICK H·Filed 1983·Granted Jan 7, 1986·16 cites·1 claims
- 0974USD258481SChiropractic mattress, or similar articleKROLL FREDERICK H·Filed 1979·Granted Mar 10, 1981·11 cites·1 claims
- 1069US6312306B1Gyroscope and method and apparatus for spinning sameFiled 2000·Granted Nov 6, 2001·13 cites·24 claims
- 1166USD325939SDrawing toyKROLL FREDERICK H·Filed 1990·Granted May 5, 1992·12 cites·1 claims
- 1266USD257994SToy drawing deskKROLL FREDERICK H·Filed 1978·Granted Jan 20, 1981·8 cites·1 claims
- 1363USD271414SCounting swatterKROLL FREDERICK H·Filed 1981·Granted Nov 15, 1983·8 cites·1 claims
- 1463USD265103SGame boardKROLL FREDERICK H·Filed 1980·Granted Jun 22, 1982·8 cites·1 claims
- 1553USD262728SToy deskKROLL FREDERICK H·Filed 1979·Granted Jan 19, 1982·4 cites·1 claims
- 1650USD311225SToy puppet stageKROLL FREDERICK H·Filed 1989·Granted Oct 9, 1990·5 cites·1 claims
- 1742US5225934AKaleidoscope with counter-rotating object wheelsKROLL FREDERICK H·Filed 1992·Granted Jul 6, 1993·10 cites·20 claims
- 1841USD257919SChiropractic car seat, or similar articleKROLL FREDERICK H·Filed 1979·Granted Jan 20, 1981·2 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →