Inventor · Penhold, AB, CA

Timothy E. LaGrange

28Patents
12h-index
37Co-inventors
81Inventor score

Filing activity: Oct 16, 1997 → Oct 19, 2020

Most-cited inventions

PatentTitleAreaCited byStatus
US6089320A Apparatus and method for lateral wellbore completion Fixed Constructions 197 Expired
US8079296B2 Device and methods for firing perforating guns Mechanical Engineering; Lighting; Heating 65 Active
US6412614B1 Downhole shock absorber Fixed Constructions 42 Expired
US7913603B2 Device and methods for firing perforating guns Fixed Constructions 41 Active
US9903185B2 Perforating gun with eccentric rotatable charge tube Fixed Constructions 40 Active
US6158513A Multiple string completion apparatus and method Fixed Constructions 35 Expired
US8561683B2 Wellbore tubular cutter Fixed Constructions 31 Active
US10422195B2 Perforating gun Fixed Constructions 29 Active
US9771769B2 Devices and related methods for actuating wellbore tools with a pressurized gas Fixed Constructions 24 Active
US7516791B2 Configurable wellbore zone isolation system and related systems Fixed Constructions 24 Active
US9689240B2 Firing mechanism with time delay and metering system Fixed Constructions 22 Active
US7610969B2 Perforating methods and devices for high wellbore pressure applications Fixed Constructions 12 Active
US9752421B2 Pressure switch for selective firing of perforating guns Fixed Constructions 11 Active
US9520219B2 Retention member for perforating guns Emerging Cross-Sectional Technologies 10 Active
US9222331B2 System and method for enhanced sealing of well tubulars Fixed Constructions 9 Active
US9470071B2 Redundant firing system for wellbore tools Mechanical Engineering; Lighting; Heating 2 Active
US10267366B2 Universal joint for downhole motor drive Emerging Cross-Sectional Technologies 2 Active
US9448051B2 Detonator interrupter for well tools Mechanical Engineering; Lighting; Heating 2 Active
US10934815B2 Signal transfer system for activating downhole tools and related methods Fixed Constructions 1 Active
US11885216B2 Perforating and tracer injection system for oilfield applications Fixed Constructions 1 Active
US11047195B2 Perforating gun Fixed Constructions 1 Active
US9670731B2 Adjustable bent housing for directional drill string Fixed Constructions 1 Active
US10753184B2 Differential pressure firing heads for wellbore tools and related methods Fixed Constructions 1 Active
US9759048B2 Perforating gun for underbalanced perforating Fixed Constructions 1 Active
US10731430B2 Perforating gun Fixed Constructions 1 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.