Inventor · disambiguated record
James F. Ptacek
Also filed as: PTACEK JAMES F
5 granted patents·148 citations·filing 1974–1995
83Inventor score
Top patents by PatentIndex Score
5 records- 0192US4934256AFume hood ventilation control systemLABCONCO CORP·Filed 1989·Granted Jun 19, 1990·77 cites·18 claims
- 0264US3962627AElectronic apparatus for testing moving coins employing successive time significant sensings of the effects of proximity of a coin under test to inductive impedance elements upon the effective impedances thereofVENDO CO·Filed 1974·Granted Jun 8, 1976·16 cites·12 claims
- 0360US5620561AVortex evaporationLABCONCO CORP·Filed 1995·Granted Apr 15, 1997·24 cites·15 claims
- 0459US5569357AVortex evaporatorLABCONCO CORP·Filed 1994·Granted Oct 29, 1996·20 cites·27 claims
- 0538US5373197AHigh voltage dual output laboratory power supplyLABCONCO CORP·Filed 1992·Granted Dec 13, 1994·11 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →