Assignee
MARCHAND NICHOLAS RYAN
CA·3 granted patents·12 citations·filing 2009–2011
Top patents by PatentIndex Score
3 records- 0169US9534638B2Retention means for a seal boot used in a universal joint in a downhole motor driveshaft assemblyMARCHAND NICHOLAS RYAN·Filed 2010·Granted Jan 3, 2017·6 cites·25 claims
- 0257US8500176B2Interlocking engagement mechanism for an adjustable bent housingMARCHAND NICHOLAS RYAN·Filed 2009·Granted Aug 6, 2013·5 cites·27 claims
- 0351US9771761B2Torque enhanced threaded connectionMARCHAND NICHOLAS RYAN·Filed 2011·Granted Sep 26, 2017·1 cites·18 claims
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