Inventor · disambiguated record
David W. Ewick
Also filed as: EWICK DAVID W
5 granted patents·272 citations·filing 1996–1998
86Inventor score
Files withENSIGN BICKFORD CO5
Top patents by PatentIndex Score
5 records- 0188US5929368AHybrid electronic detonator delay circuit assemblyENSIGN BICKFORD CO·Filed 1996·Granted Jul 27, 1999·62 cites·25 claims
- 0287US5714712AExplosive initiation systemENSIGN BICKFORD CO·Filed 1996·Granted Feb 3, 1998·78 cites·27 claims
- 0385US5889228ADetonator with loosely packed ignition charge and method of assemblyENSIGN BICKFORD CO·Filed 1997·Granted Mar 30, 1999·46 cites·26 claims
- 0483US6408759B1Initiator with loosely packed ignition charge and method of assemblyENSIGN BICKFORD CO·Filed 1998·Granted Jun 25, 2002·41 cites·39 claims
- 0580US5831203AHigh impedance semiconductor bridge detonatorENSIGN BICKFORD CO·Filed 1997·Granted Nov 3, 1998·45 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →