Inventor · disambiguated record
K. Shayne Drivdahl
Also filed as: DRIVDAHL K SHAYNE
7 granted patents·155 citations·filing 2006–2010
89Inventor score
Technology areasE21B
Files withLONGYEAR TM INC7
Top patents by PatentIndex Score
7 records- 0197US8051929B2Core drill bits with enclosed fluid slotsLONGYEAR TM INC·Filed 2010·Granted Nov 8, 2011·27 cites·20 claims
- 0295US7628228B2Core drill bit with extended crown heightLONGYEAR TM INC·Filed 2006·Granted Dec 8, 2009·45 cites·9 claims
- 0394US7828090B2Drill bits with enclosed fluid slots and internal flutesLONGYEAR TM INC·Filed 2009·Granted Nov 9, 2010·39 cites·20 claims
- 0490US7918288B2Drill bits with enclosed fluid slots and methodLONGYEAR TM INC·Filed 2009·Granted Apr 5, 2011·24 cites·20 claims
- 0574US7874384B2Drill bits with increased crown heightLONGYEAR TM INC·Filed 2009·Granted Jan 25, 2011·8 cites·20 claims
- 0669US7958954B2Drill bits with enclosed slotsLONGYEAR TM INC·Filed 2009·Granted Jun 14, 2011·6 cites·24 claims
- 0769US7909119B2Drill bits with notches and enclosed slotsLONGYEAR TM INC·Filed 2009·Granted Mar 22, 2011·6 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →