Inventor · disambiguated record
Charles W. Berk
Also filed as: BERK CHARLES W
4 granted patents·101 citations·filing 1974–1993
79Inventor score
Files withLECO CORP4
Top patents by PatentIndex Score
4 records- 0180US4019017AArc control circuitLECO CORP·Filed 1975·Granted Apr 19, 1977·35 cites·2 claims
- 0271US3936587AElectrode construction for resistance heating furnaceLECO CORP·Filed 1974·Granted Feb 3, 1976·22 cites·19 claims
- 0360US5322360AIsothermal calorimeterLECO CORP·Filed 1993·Granted Jun 21, 1994·28 cites·14 claims
- 0457US4056677AElectrode system for resistance furnaceLECO CORP·Filed 1976·Granted Nov 1, 1977·16 cites·15 claims
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