Assignee
DRILLING DEV INC
3 granted patents·1,560 citations·filing 1980–1980
Top patents by PatentIndex Score
3 records- 0195US4328839AFlexible drill pipeDRILLING DEV INC·Filed 1980·Granted May 11, 1982·1.5k cites·7 claims
- 0252US4343369AApparatus for drilling straight portion of a deviated holeDRILLING DEV INC·Filed 1980·Granted Aug 10, 1982·22 cites·12 claims
- 0330US4380264ASurvey tool stringDRILLING DEV INC·Filed 1980·Granted Apr 19, 1983·6 cites·14 claims
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