Inventor · disambiguated record
Andrew P. Dretzka
Also filed as: DRETZKA ANDREW P · DRETZKA ANDREW PAUL
9 granted patents·161 citations·filing 1993–2019
87Inventor score
Top patents by PatentIndex Score
9 records- 0196US5410826AAssembly and method for tooth tip retentionHARNISCHFEGER CORP·Filed 1993·Granted May 2, 1995·109 cites·17 claims
- 0287US9382685B2Conduit support structure for an industrial machine with saddle blockHARNISCHFEGER TECH INC·Filed 2014·Granted Jul 5, 2016·10 cites·8 claims
- 0357US11021850B2Conduit support structure for an industrial machine with pivot jointJOY GLOBAL SURFACE MINING INC·Filed 2019·Granted Jun 1, 2021·0 cites·13 claims
- 0453US9783958B2Drive mechanism for mining attachmentHARNISCHFEGER TECH INC·Filed 2014·Granted Oct 10, 2017·1 cites·23 claims
- 0553US5636460ADragline with cantilevered side-access dump blockHARNISCHFEGER CORP·Filed 1995·Granted Jun 10, 1997·17 cites·24 claims
- 0650US10435862B2Conduit support structure for an industrial machine with hoist cableHARNISCHFEGER TECH INC·Filed 2016·Granted Oct 8, 2019·0 cites·11 claims
- 0746US5398433ABucket dump blockHARNISCHFEGER CORP·Filed 1993·Granted Mar 21, 1995·14 cites·9 claims
- 0842US5590968ABearing retainer assemblyHARNISCHFEGER CORP·Filed 1995·Granted Jan 7, 1997·10 cites·19 claims
- 0917USD926825SSpiker anvil headNORDCO INC·Filed 2019·Granted Aug 3, 2021·0 cites·1 claims
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