Assignee
SOMMERS MICHAEL T
US·3 granted patents·98 citations·filing 2011–2012
Technology mixE21B3
Top patents by PatentIndex Score
3 records- 0197US8267178B1Valve for hydraulic fracturing through cement outside casingSOMMERS MICHAEL T·Filed 2011·Granted Sep 18, 2012·90 cites·32 claims
- 0279US8915300B2Valve for hydraulic fracturing through cement outside casingSOMMERS MICHAEL T·Filed 2011·Granted Dec 23, 2014·5 cites·20 claims
- 0371US9121251B2Valve for hydraulic fracturing through cement outside casingSOMMERS MICHAEL T·Filed 2012·Granted Sep 1, 2015·3 cites·17 claims
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