Inventor · Ljungby, SE

Lars Sparf

45Patents
11h-index
44Co-inventors
71Inventor score

Filing activity: Mar 21, 2011 → Dec 7, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US8896575B2 Pressure-sensitive touch screen Physics 66 Active
US9152258B2 User interface for a touch screen Physics 56 Active
US9207800B1 Integrated light guide and touch screen frame and multi-touch determination method Physics 48 Active
US8553014B2 Optical touch screen systems using total internal reflection Physics 29 Active
US9063614B2 Optical touch screens Physics 29 Active
USD776666S1 Curved light guide frame General 25 Active
US9164625B2 Proximity sensor for determining two-dimensional coordinates of a proximal object Physics 20 Active
US9052771B2 Touch screen calibration and update methods Physics 16 Active
USD776665S1 Light guide frame General 15 Active
US8587562B2 Light-based touch screen using elliptical and parabolic reflectors Physics 14 Active
US8676007B2 Light-based touch surface with curved borders and sloping bezel Physics 13 Active
US9471170B2 Light-based touch screen with shift-aligned emitter and receiver lenses Physics 11 Active
US8917239B2 Removable protective cover with embedded proximity sensors Physics 11 Active
US9411430B2 Optical touch screen using total internal reflection Physics 10 Active
US9645679B2 Integrated light guide and touch screen frame Physics 10 Active
US9678601B2 Optical touch screens Physics 10 Active
US8902196B2 Methods for determining a touch location on a touch screen Physics 10 Active
US9195344B2 Optical surface using a reflected image for determining three-dimensional position information Physics 9 Active
US9335867B2 Light-based touch surface with curved borders Physics 9 Active
US8837882B2 Light-based touch surface with curved borders Physics 9 Active
US9389730B2 Light-based touch screen using elongated light guides Physics 8 Active
US10004985B2 Handheld electronic device and associated distributed multi-display system Physics 8 Active
US8674966B2 ASIC controller for light-based touch screen Physics 8 Active
US9035917B2 ASIC controller for light-based sensor Physics 8 Active
US9921661B2 Optical proximity sensor and associated user interface Physics 8 Active

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