Assignee
NOWSCO WELL SERVICE LTD
CA·5 granted patents·326 citations·filing 1986–1995
Top patents by PatentIndex Score
5 records- 0190US5638904ASafeguarded method and apparatus for fluid communiction using coiled tubing, with application to drill stem testingNOWSCO WELL SERVICE LTD·Filed 1995·Granted Jun 17, 1997·140 cites·46 claims
- 0289US4692988AScrew thread protectionNOWSCO WELL SERVICE LTD·Filed 1986·Granted Sep 15, 1987·76 cites·34 claims
- 0387US5429036ARemote hydraulic pressure intensifierNOWSCO WELL SERVICE LTD·Filed 1994·Granted Jul 4, 1995·49 cites·23 claims
- 0461US5836167AMethod and apparatus for freezing large pipeNOWSCO WELL SERVICE LTD·Filed 1995·Granted Nov 17, 1998·40 cites·41 claims
- 0561US5063997AMethod of preventing precipitation of iron compounds during acid treatment of wellsNOWSCO WELL SERVICE LTD·Filed 1990·Granted Nov 12, 1991·21 cites·21 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →