Assignee
TIDRIL CORP
5 granted patents·156 citations·filing 1974–1976
Technology mixE21B5
Top patents by PatentIndex Score
5 records- 0187US4043136ASystem and method for installing production casingsTIDRIL CORP·Filed 1975·Granted Aug 23, 1977·55 cites·14 claims
- 0275US4003440AApparatus and process for drilling underground arcuate paths utilizing directional drill and following linerTIDRIL CORP·Filed 1974·Granted Jan 18, 1977·34 cites·13 claims
- 0368US3967689AReaming apparatusTIDRIL CORP·Filed 1974·Granted Jul 6, 1976·26 cites·8 claims
- 0461US3996758AMethod for placement of production casing under obstacleTIDRIL CORP·Filed 1975·Granted Dec 14, 1976·23 cites·13 claims
- 0555US4051911AApparatus and process for drilling underground arcuate paths utilizing directional drill and following linerTIDRIL CORP·Filed 1976·Granted Oct 4, 1977·18 cites·3 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →