Assignee
GERRARD DAVID P
US·5 granted patents·1 pending application·52 citations·filing 2009–2011
Top patents by PatentIndex Score
6 records- 0195US8604157B2Crosslinked blends of polyphenylene sulfide and polyphenylsulfone for downhole applications, methods of manufacture, and uses thereofGERRARD DAVID P·Filed 2011·Granted Dec 10, 2013·14 cites·43 claims
- 0295US8261761B2Selectively movable seat arrangement and methodGERRARD DAVID P·Filed 2009·Granted Sep 11, 2012·31 cites·20 claims
- 0387US9090812B2Self-inhibited swell packer compoundGERRARD DAVID P·Filed 2011·Granted Jul 28, 2015·5 cites·39 claims
- 0468US9038656B2Restriction engaging systemGERRARD DAVID P·Filed 2011·Granted May 26, 2015·2 cites·17 claims
- 0551US2013126184A1Reactive choke for automatic wellbore fluid management and methods of using sameGERRARD DAVID P·Filed 2011·Application pending·0 cites
- 0642US8739889B2Annular pressure regulating diaphragm and methods of using sameGERRARD DAVID P·Filed 2011·Granted Jun 3, 2014·0 cites·20 claims
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