Assignee
HOWELL DAVID A
US·3 granted patents·1 pending application·40 citations·filing 2006–2014
Top patents by PatentIndex Score
4 records- 0195US9816373B2Apparatus and method for relieving annular pressure in a wellbore using a wireless sensor networkHOWELL DAVID A·Filed 2013·Granted Nov 14, 2017·34 cites·46 claims
- 0273US8467505B2Voicemail filtering softwareHOWELL DAVID A·Filed 2006·Granted Jun 18, 2013·6 cites·19 claims
- 0342US2015167441A1System and method of injecting a proppant mixture during fracturingHOWELL DAVID A·Filed 2014·Application pending·0 cites
- 0437US9638005B2Combined anti-rotation apparatus and pressure test toolHOWELL DAVID A·Filed 2014·Granted May 2, 2017·0 cites·21 claims
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