Inventor · Buckenhof, DE

Kai Engelhardt

29Patents
10h-index
34Co-inventors
71Inventor score

Filing activity: Oct 24, 2008 → Mar 20, 2024

Most-cited inventions

PatentTitleAreaCited byStatus
US9291504B2 Spectrometry system with decreased light path Physics 49 Active
US9562848B2 Spectrometry systems, methods, and applications Electricity 42 Active
US9383258B2 Spectrometry system with filters and illuminator having primary and secondary emitters Physics 34 Active
US9448114B2 Spectrometry system with diffuser having output profile independent of angle of incidence and filters Physics 31 Active
US9574942B2 Spectrometry system with decreased light path Physics 25 Active
US9500523B2 Spectrometry system with diffuser and filter array and isolated optical paths Physics 25 Active
US9933305B2 Spectrometry systems, methods, and applications Electricity 21 Active
US9952098B2 Spectrometry system with decreased light path Physics 18 Active
US10641657B2 Spectrometry systems, methods, and applications Electricity 11 Active
US8559118B2 Fixed focal length optical lens architecture providing a customized depth of focus optical system Physics 10 Active
US10942065B2 Spectrometry system with decreased light path Physics 7 Active
US11118971B2 Spectrometry systems, methods, and applications Electricity 5 Active
US8662765B2 Wafer level optics Physics 3 Active
US11275500B1 Graphics authoring application user interface control Physics 3 Active
US8810922B2 Fixed focal length optical lens architecture providing a customized depth of focus optical system Physics 3 Active
US8525914B2 Imaging system with multi-state zoom and associated methods Electricity 2 Active
US11624651B2 Spectrometry system with decreased light path Physics 1 Active
US9464935B2 Spectrometry system with diffuser and filter array and isolated optical paths General 0 Revoked
US9405096B2 Image sensor modules including primary high-resolution and secondary imagers Physics 0 Active
US9354117B2 Spectrometry system with diffuser having output profile independent of angle of incidence and filters General 0 Revoked
US11988556B2 Spectrometry system with decreased light path Physics 0 Active
US10371954B2 Optoelectronic modules including hybrid arrangements of beam shaping elements, and imaging devices incorporating the same Electricity 0 Active
US10459187B2 Optical assembly including passive optical elements having alignment features Physics 0 Active
US10761244B2 Illumination assembly for 3D data acquisition Physics 0 Active
US11781910B2 Spectrometry systems, methods, and applications Electricity 0 Active

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