Inventor · disambiguated record

David Ashcraft

Also filed as: ASHCRAFT DAVID · ASHCRAFT DAVID W

2 granted patents·22 citations·filing 2004–2005

59Inventor score

Technology areasE21B

Files withBAKER HUGHES INC2

Top patents by PatentIndex Score

2 records

0172US7530407B2Rotary coring device and method for acquiring a sidewall core from an earth formationBAKER HUGHES INC·Filed 2005·Granted May 12, 2009·16 cites·18 claims
0239US7373994B2Self cleaning coring bitBAKER HUGHES INC·Filed 2004·Granted May 20, 2008·6 cites·29 claims

Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →