Assignee
KROHN HELGE
NO·4 granted patents·1 pending application·11 citations·filing 2009–2011
Top patents by PatentIndex Score
5 records- 0170US8794351B2Device and method for drilling with continuous tool rotation and continuous drilling fluid supplyKROHN HELGE·Filed 2011·Granted Aug 5, 2014·5 cites·1 claims
- 0267US8844616B2Method for withdrawal and insertion of a drill pipe string in a borehole and also a device for use when practicing the methodKROHN HELGE·Filed 2010·Granted Sep 30, 2014·5 cites·11 claims
- 0351US8726984B2Rotary table device for a pipe stringKROHN HELGE·Filed 2011·Granted May 20, 2014·1 cites·21 claims
- 0435US8931555B2Device for a downhole apparatus for machining of casings and also a method of depositing machined shavingsKROHN HELGE·Filed 2010·Granted Jan 13, 2015·0 cites·16 claims
- 0533US2011094800A1Method for Control of a Drilling OperationKROHN HELGE·Filed 2009·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →