Inventor · disambiguated record
Frank B. Williford
Also filed as: WILLIFORD FRANK B
3 granted patents·1 pending application·224 citations·filing 1987–2003
78Inventor score
Top patents by PatentIndex Score
4 records- 0188US4819730ADevelopment drilling systemSCHLUMBERGER TECHNOLOGY CORP·Filed 1987·Granted Apr 11, 1989·128 cites·20 claims
- 0283US6048135AModular offshore drilling unit and method for construction of sameENSCO INTERNATIONAL INC·Filed 1997·Granted Apr 11, 2000·43 cites·19 claims
- 0383US5855455ASubmersible and semi-submersible dry lift carrier and method of operation for carrying a drilling rig and platformENSCO INTERNATIONAL INC·Filed 1997·Granted Jan 5, 1999·53 cites·34 claims
- 0428US2004115006A1System and method for converting a floating drilling rig to a bottom supported drilling rigFiled 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →