Inventor · disambiguated record
David L. Karpal
Also filed as: KARPAL DAVID · KARPAL DAVID L
5 granted patents·272 citations·filing 1978–1995
84Inventor score
Top patents by PatentIndex Score
5 records- 0194US5221016AInsulating container and method of making sameKARPAL DAVID·Filed 1989·Granted Jun 22, 1993·184 cites·14 claims
- 0266US4623076ARefillable container with depressurization meansKARPAL DAVID·Filed 1985·Granted Nov 18, 1986·41 cites·6 claims
- 0360US5845597ASeparation medium efficiency indicatorVISTA WATER SYSTEMS INC·Filed 1995·Granted Dec 8, 1998·28 cites·2 claims
- 0451US4191807AAircraft batteryTELEDYNE IND·Filed 1978·Granted Mar 4, 1980·11 cites·6 claims
- 0544US4237202AAircraft batteryTELEDYNE IND·Filed 1978·Granted Dec 2, 1980·8 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →