Assignee
PDB TOOLS INC
US·3 granted patents·1 citations·filing 2014–2019
Technology mixE21B3
Top patents by PatentIndex Score
3 records- 0152US9657528B2Flow bypass compensator for sealed bearing drill bitsPDB TOOLS INC·Filed 2014·Granted May 23, 2017·1 cites·19 claims
- 0246US10689912B1Sealed bearing rock bit with a low profile sealPDB TOOLS INC·Filed 2019·Granted Jun 23, 2020·0 cites·18 claims
- 0334US10337254B2Tungsten carbide insert bit with milled steel teethPDB TOOLS INC·Filed 2015·Granted Jul 2, 2019·0 cites·18 claims
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