DW

David Ward

WE Weatherford/Lamb: 7 patents #103 of 852Top 15%
WH Weatherford Technology Holdings: 5 patents #114 of 753Top 20%
Overall (All Time): #321,358 of 4,157,543Top 8%
15
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9995113 Method and apparatus for treating a wellbore Cesar G. Garcia, Michael J. Sessa 2018-06-12
9670751 Sliding sleeve having retrievable ball seat Jason J. Brasseaux, Cesar G. Garcia 2017-06-06
9523261 High flow rate multi array stimulation system Antonio Flores, David Nowowiejski 2016-12-20
9488035 Sliding sleeve having deformable ball seat Scott Crowley, Cesar G. Garcia, Iain Greenan 2016-11-08
9080420 Multiple shift sliding sleeve Antonio Flores, Cesar G. Garcia 2015-07-14
8893810 Arrangement of isolation sleeve and cluster sleeves having pressure chambers Patrick J. Zimmerman, Cesar G. Garcia 2014-11-25
8800670 Filler rings for swellable packers and method for using same Jeffrey J. Lembcke, Patrick J. Zimmerman 2014-08-12
8714272 Cluster opening sleeves for wellbore Cesar G. Garcia, Patrick J. Zimmerman, Antonio Flores, Michael Dedman 2014-05-06
8245788 Cluster opening sleeves for wellbore treatment and method of use Cesar G. Garcia, Patrick J. Zimmerman, Antonio Flores, Michael Dedman 2012-08-21
8087459 Packer providing multiple seals and having swellable element isolatable from the wellbore Rebecca Caldwell, Patrick J. Zimmerman, Robert Coon, Henry Joe Jordan, Jr. 2012-01-03
8069918 Magnetic slip retention for downhole tool Patrick J. Zimmerman, Jonathan A. Young 2011-12-06
6578638 Drillable inflatable packer & methods of use Brett Guillory 2003-06-17
6082707 Valve seat and method David Hosie, Michael Brian Grayson 2000-07-04
6059262 Valve operator and method David Hosie, Michael Brian Grayson 2000-05-09
5320219 Compact disc identification kit 1994-06-14