DH

David J. Havens

WH Weatherford Technology Holdings: 3 patents #182 of 753Top 25%
WE Weatherford/Lamb: 2 patents #315 of 852Top 40%
📍 Houston, TX: #3,811 of 21,073 inventorsTop 20%
🗺 Texas: #24,375 of 125,132 inventorsTop 20%
Overall (All Time): #844,327 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
9650873 Landing string compensator David E. Mouton, Michael Hayes, Karsten Heidecke, Raleigh Fisher, Jim Hollingsworth +1 more 2017-05-16
9353603 Landing string compensator David E. Mouton, Michael Hayes, Karsten Heidecke, Raleigh Fisher, Jim Hollingsworth +1 more 2016-05-31
9212527 Pipe handling system Karsten Heidecke, Michael Hayes, Frederick T. Tilton, Doyle Fredric Boutwell, Jr., Robert P. Badrak +1 more 2015-12-15
8919841 Method and apparatus for attachment of a secondary tool handling device to a primary tool handling device Lawrence E. Childress, II, Robert Dugal 2014-12-30
8833470 Pipe handling system Karsten Heidecke, Michael Hayes, Frederick T. Tilton, Doyle Fredric Boutwell, Jr., Robert P. Badrak +1 more 2014-09-16
8733447 Landing string compensator David E. Mouton, Michael Hayes, Karsten Heidecke, Raleigh Fisher, Jim Hollingsworth +1 more 2014-05-27