Inventor · disambiguated record
Ralph Ehlers
Also filed as: EHLERS RALPH
2 granted patents·207 citations·filing 1995–1998
71Inventor score
Technology areasE21B
Files withBAKER HUGHES INC2
Top patents by PatentIndex Score
2 records- 0188US5738178AMethod and apparatus for navigational drilling with a downhole motor employing independent drill string and bottomhole assembly rotary orientation and rotationBAKER HUGHES INC·Filed 1995·Granted Apr 14, 1998·148 cites·24 claims
- 0273US6129160ATorque compensation apparatus for bottomhole assemblyBAKER HUGHES INC·Filed 1998·Granted Oct 10, 2000·59 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →