Inventor · disambiguated record

David H. Barr

Also filed as: BARR DAVID H

1 granted patent·57 citations·filing 1997–1997

49Inventor score

Technology areasE21B

Files withBAKER HUGHES INC1

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1 record

0167US5960896ARotary drill bits employing optimal cutter placement based on chamfer geometryBAKER HUGHES INC·Filed 1997·Granted Oct 5, 1999·57 cites·16 claims

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