Inventor · Newmarket, IE

Denis O'Keeffe

40Patents
15h-index
77Co-inventors
84Inventor score

Filing activity: Apr 19, 1995 → Dec 31, 2020

Most-cited inventions

PatentTitleAreaCited byStatus
US5578817A Pointing device utilizing a photodetector array and controlled by a human finger contacting a prism Physics 136 Expired
US6124587A Pointing device utilizing a photodetector array Physics 109 Expired
US5703356A Pointing device utilizing a photodetector array Physics 100 Expired
US5854482A Pointing device utilizing a photodector array Physics 70 Expired
USD706743S1 Speaker housing General 68 Active
USD423488S Cordless mouse General 55 Expired
USD471556S1 Mouse General 37 Expired
US6218659A Dual layer optical ball for pointing device Physics 35 Expired
US9494976B2 Protective cover for a tablet computer Emerging Cross-Sectional Technologies 28 Active
USD788070S1 Speaker housing General 27 Active
US6580419B1 Drop resistant cordless mouse Physics 24 Expired
US8446366B2 Multi-function roller apparatus and method for a control device Physics 19 Active
US6411281B1 Mouse with battery compartment on top Physics 19 Expired
USD441749S Gaming mouse General 17 Expired
US9244535B2 Protective cover for a tablet computer Emerging Cross-Sectional Technologies 16 Active
US6798397B2 Mouse with cantilevered roller Physics 14 Expired
US7499028B2 Collapsible wireless input device Physics 12 Expired
US9218025B2 Protective cover for a tablet computer Emerging Cross-Sectional Technologies 10 Active
USD519507S1 Mouse with touchpad portion General 9 Expired
USD563957S1 Computer mouse General 9 Expired
US7688309B2 Optical displacement module and method to reduce the size of an optical pointing device thereof Electricity 8 Active
US11487353B2 Systems and methods for configuring a hub-centric virtual/augmented reality environment Physics 8 Active
US7939774B2 Tunable keys for a control device Physics 8 Active
US7733328B2 Multi-function roller apparatus and method for a control device Physics 8 Active
US8188974B2 Input device with reduced friction Physics 6 Active

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