Assignee
JOHNSON NICHOLAS D
US·3 granted patents·8 citations·filing 2009–2011
Top patents by PatentIndex Score
3 records- 0160US8561708B2ID centralizerJOHNSON NICHOLAS D·Filed 2011·Granted Oct 22, 2013·2 cites·28 claims
- 0260US8439658B2Progressing cavity pump rubber reinforcement device for rotor alignmentJOHNSON NICHOLAS D·Filed 2009·Granted May 14, 2013·2 cites·23 claims
- 0350US8333244B2Bottom tag for progressing cavity pump rotor with coiled tubing accessJOHNSON NICHOLAS D·Filed 2009·Granted Dec 18, 2012·4 cites·19 claims
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