Assignee

GOLDRUS PRODUCING COMPANY

US·2 granted patents·146 citations·filing 1999–1999

Technology mixE21B2

Top patents by PatentIndex Score

2 records

0184US6202761B1Directional drilling method and apparatusGOLDRUS PRODUCING COMPANY·Filed 1999·Granted Mar 20, 2001·136 cites·7 claims
0228US6230821B1Weight control system for a rotary drill assemblyGOLDRUS PRODUCING COMPANY·Filed 1999·Granted May 15, 2001·10 cites·8 claims

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