Houston, Texas
United States
12
2023-06-22
The entities that hold a legal rights for patent applications filed by inventor Ward David:
David Ward from Houston, US has applied for patents for these inventions. The list has both pending applications and granted patents:
PRESSURE CYCLE DOWNHOLE TOOL ACTUATION
#2 | 2015-06-04Method and apparatus for treating a wellbore
#3 | 2014-06-19Sliding sleeve having deformable ball seat
#4 | 2013-02-21Multiple shift sliding sleeve
#5 | 2012-12-06Cluster opening sleeves for wellbore
#6 | 2012-03-08Arrangement of isolation sleeve and cluster sleeves having pressure chambers
#7 | 2012-02-23Magnetic Slip Retention for Downhole Tool
#8 | 2012-02-09Filler rings for swellable packers and method for using same
#9 | 2011-08-11Cluster opening sleeves for wellbore treatment and method of use
#10 | 2011-03-03SECURING A COMPOSITE BRIDGE PLUG
#11 | 2010-09-30Packer providing multiple seals and having swellable element isolatable from the wellbore
#12 | 2010-09-30Magnetic slip retention for downhole tool
96213 ⎘