Inventor · disambiguated record
Duane Ladue
Also filed as: LADUE DUANE · LADUE DUANE F
4 granted patents·321 citations·filing 1995–1996
83Inventor score
Technology areasE21B
Top patents by PatentIndex Score
4 records- 0188US5692565AApparatus and method for sampling an earth formation through a cased boreholeSCHLUMBERGER TECHNOLOGY CORP·Filed 1996·Granted Dec 2, 1997·138 cites·28 claims
- 0271US5667025AArticulated bit-selector coring toolSCHLUMBERGER TECHNOLOGY CORP·Filed 1995·Granted Sep 16, 1997·79 cites·52 claims
- 0370US5687806AMethod and apparatus for drilling with a flexible shaft while using hydraulic assistanceGAS RES INST·Filed 1996·Granted Nov 18, 1997·67 cites·18 claims
- 0455US5746279AMethod and apparatus for changing bits while drilling with a flexible shaftGAS RES INST·Filed 1996·Granted May 5, 1998·37 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →