Assignee
SPENCE DEAN
CA·3 granted patents·23 citations·filing 2009–2017
Top patents by PatentIndex Score
3 records- 0183US10385629B2Dual coiled tubing headSPENCE DEAN·Filed 2017·Granted Aug 20, 2019·13 cites·18 claims
- 0276US8281851B2Coil tubing cable head with tool release, fluid circulation and cable protection featuresSPENCE DEAN·Filed 2010·Granted Oct 9, 2012·10 cites·17 claims
- 0339US8439120B2Method of sealing annular space between inner and outer upright tubesSPENCE DEAN·Filed 2009·Granted May 14, 2013·0 cites·20 claims
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