Inventor · Richmond, TX, US

Mark A. Sitka

26Patents
8h-index
35Co-inventors
71Inventor score

Filing activity: May 19, 2003 → Oct 31, 2016

Most-cited inventions

PatentTitleAreaCited byStatus
US8264228B2 Method and apparatus for building a tilted antenna Emerging Cross-Sectional Technologies 33 Active
US7204309B2 MWD formation tester Fixed Constructions 30 Expired
US7966875B2 Methods and apparatus for measuring formation properties Fixed Constructions 29 Active
US9512714B2 Mounting bracket for strain sensor Mechanical Engineering; Lighting; Heating 19 Active
US7336199B2 Inductive coupling system Fixed Constructions 17 Active
US9512711B2 Portable attachment of fiber optic sensing loop Physics 17 Active
US7603897B2 Downhole probe assembly Physics 12 Expired
US7395879B2 MWD formation tester Fixed Constructions 9 Active
US8514657B2 Generating fluid telemetry Fixed Constructions 5 Active
US8881846B2 Directional drilling control using a bendable driveshaft Fixed Constructions 5 Active
US9000939B2 Mud powered inertia drive oscillating pulser Fixed Constructions 4 Active
US9624767B2 Apparatus and method to produce data pulses in a drill string Fixed Constructions 4 Active
US8604632B2 Systems and methods of harvesting energy in a wellbore Electricity 2 Active
US9932816B2 Mounting bracket for strain sensor Mechanical Engineering; Lighting; Heating 2 Active
US9334725B2 Borehole fluid-pulse telemetry apparatus and method Fixed Constructions 1 Active
US10273753B2 Independent modification of drill string portion rotational speed Fixed Constructions 1 Active
US9593569B2 Portable attachment of fiber optic sensing loop Physics 0 Active
US10871032B2 Device including a seal assembly Mechanical Engineering; Lighting; Heating 0 Active
US9416592B2 Generating fluid telemetry Fixed Constructions 0 Active
US9337705B2 Systems and methods of harvesting energy in a wellbore Electricity 0 Active
US10077652B2 Mud pulser with high speed, low power input hydraulic actuator Fixed Constructions 0 Active
US9217286B2 Anti-reverse mechanism for mud motor Fixed Constructions 0 Active
US10177432B2 Flexible antenna assembly for well logging tools Electricity 0 Active
US10014802B2 Systems and methods of harvesting energy in a wellbore Electricity 0 Active
US10465481B2 Electrical conveyance for downhole tools Mechanical Engineering; Lighting; Heating 0 Active

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