Inventor · disambiguated record
Donald W. Carkhuff
Also filed as: CARKHUFF DONALD W
14 granted patents·463 citations·filing 1976–1995
94Inventor score
Top patents by PatentIndex Score
14 records- 0192USD365345SPlasma torch electrodeESAB WELDING PRODUCTS INC·Filed 1994·Granted Dec 19, 1995·44 cites·1 claims
- 0290US4580032APlasma torch safety deviceUNION CARBIDE CORP·Filed 1984·Granted Apr 1, 1986·60 cites·8 claims
- 0386USD362860SElectrode for plasma arc torchESAB GROUP INC·Filed 1993·Granted Oct 3, 1995·28 cites·1 claims
- 0484USD359058SNozzle for plasma arc torchESAB GROUP INC·Filed 1993·Granted Jun 6, 1995·25 cites·1 claims
- 0582USD379577SNozzle for a plasma arc torchESAB GROUP INC·Filed 1995·Granted Jun 3, 1997·26 cites·1 claims
- 0680US5013885APlasma arc torch having extended nozzle of substantially hourglassESAB WELDING PRODUCTS INC·Filed 1990·Granted May 7, 1991·76 cites·17 claims
- 0777US4105891AMetal-inert-gas welding torchUNION CARBIDE CORP·Filed 1976·Granted Aug 8, 1978·30 cites·7 claims
- 0873US5216221APlasma arc torch power disabling mechanismESAB WELDING PRODUCTS INC·Filed 1992·Granted Jun 1, 1993·47 cites·21 claims
- 0970US5414237APlasma arc torch with integral gas exchangeESAB GROUP INC·Filed 1993·Granted May 9, 1995·41 cites·13 claims
- 1067US4716269APlasma arc torch having supplemental electrode cooling mechanismsL TEC CO·Filed 1986·Granted Dec 29, 1987·25 cites·6 claims
- 1153US5214262AElectrode adaptorESAB WELDING PRODUCTS INC·Filed 1992·Granted May 25, 1993·16 cites·20 claims
- 1252US5681489APlasma arc torch including means for disabling power sourceESAB GROUP INC·Filed 1995·Granted Oct 28, 1997·26 cites·13 claims
- 1352US5162632APlasma torch having heat shield for torch bodyESAB WELDING PRODUCTS INC·Filed 1991·Granted Nov 10, 1992·15 cites·23 claims
- 1437US4315126AMethod of air cutting and gouging and a combined torch and nozzle assemblyUNION CARBIDE CORP·Filed 1980·Granted Feb 9, 1982·4 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →