Assignee
PARKER DRILLING COMPANY INC
4 granted patents·41 citations·filing 1973–1975
Top patents by PatentIndex Score
4 records- 0163US4024924ADrilling rig with independent table structurePARKER DRILLING COMPANY INC·Filed 1975·Granted May 24, 1977·29 cites·6 claims
- 0235US3933059ADeep drilling machine demountable for helicopter transportPARKER DRILLING COMPANY INC·Filed 1973·Granted Jan 20, 1976·9 cites·5 claims
- 0327US4004470ADrilling apparatus for drilling small diameter bore holes deep into the earthPARKER DRILLING COMPANY INC·Filed 1975·Granted Jan 25, 1977·3 cites·2 claims
- 0425US4009544ADrilling rig with improved mast support structurePARKER DRILLING COMPANY INC·Filed 1975·Granted Mar 1, 1977·0 cites·4 claims
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