Inventor · Cheltenham, GB

Spyro Kotsonis

19Patents
8h-index
33Co-inventors
68Inventor score

Filing activity: Feb 5, 1998 → Apr 25, 2014

Most-cited inventions

PatentTitleAreaCited byStatus
US6092610A Actively controlled rotary steerable system and method for drilling wells Fixed Constructions 341 Expired
US7133325B2 Apparatus and method for generating electrical power in a borehole Electricity 46 Expired
US6837315B2 Rotary steerable drilling tool Fixed Constructions 38 Expired
US8179278B2 Downhole communication devices and methods of use Fixed Constructions 33 Active
US7004263B2 Directional casing drilling Fixed Constructions 27 Expired
US9121244B2 Elastically responsive unibody shear valve Mechanical Engineering; Lighting; Heating 20 Active
US7743849B2 Dual tractor drilling system Fixed Constructions 19 Active
US9062530B2 Completion assembly Fixed Constructions 10 Active
US7905291B2 Borehole cleaning using downhole pumps Fixed Constructions 8 Active
US7946360B2 Downhole drilling of a lateral hole Fixed Constructions 8 Active
US8191652B2 Directional control drilling system Fixed Constructions 7 Active
US8430162B2 Continuous downhole scale monitoring and inhibition system Fixed Constructions 5 Active
US8726650B2 Hydraulic manifold pump Mechanical Engineering; Lighting; Heating 2 Active
US7849935B2 System and method for drilling wellbores Fixed Constructions 2 Expired
US7686100B2 Technique and apparatus for drilling and completing a well in one half trip Fixed Constructions 2 Active
US9175518B2 Anchoring systems for drilling tools Fixed Constructions 2 Active
US8307917B2 Downhole injector system for CT and wireline drilling Fixed Constructions 2 Active
US10280734B2 Proximity sensor system for electric submersible pumps Mechanical Engineering; Lighting; Heating 1 Active
US7766087B2 Methods and apparatus for placement of well equipment Fixed Constructions 1 Active

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