Inventor · Utzmemmingen, DE

Frank Melzer

21Patents
9h-index
31Co-inventors
71Inventor score

Filing activity: May 25, 2001 → Aug 21, 2012

Most-cited inventions

PatentTitleAreaCited byStatus
US7321126B2 Collector with fastening devices for fastening mirror shells Physics 22 Expired
US7196841B2 Lighting system, particularly for use in extreme ultraviolet (EUV) lithography Physics 22 Expired
US7015489B2 Collector having unused region for illumination systems using a wavelength less than or equal to 193 nm Physics 20 Expired
US6603615B2 Precision positioning apparatus for positioning a component especially an optical component Physics 18 Expired
US6844994B2 Optical element deformation system Physics 16 Expired
US7354168B2 Facet mirror having a number of mirror facets Physics 13 Expired
US6897599B2 System for damping oscillations Physics 10 Expired
US7244954B2 Collector having unused region for illumination systems using a wavelength ≦193 nm Physics 9 Expired
US7460212B2 Collector configured of mirror shells Physics 9 Active
US6700715B2 Oscillation damping system Physics 9 Expired
US6836530B2 Illumination system with a plurality of individual gratings Physics 7 Expired
US6655808B2 Focusing-device for the radiation from a light source Physics 6 Expired
US7410265B2 Focusing-device for the radiation from a light source Physics 6 Expired
US7090362B2 Facet mirror having a number of mirror facets Physics 4 Expired
US7580207B2 Optical apparatus comprising an optical component and an adjustment device and method for influencing a polarization state of the optical component Physics 3 Active
US7091505B2 Collector with fastening devices for fastening mirror shells Physics 3 Expired
US7034998B2 Method of connecting a multiplicity of optical elements to a basic body Emerging Cross-Sectional Technologies 1 Expired
US8269947B2 Optical system for semiconductor lithography Physics 1 Active
US8454230B2 Method and system for indirect determination of local irradiance in an optical system Physics 1 Active
US7871171B2 Focusing-device for the radiation from a light source Physics 0 Active
US9383544B2 Optical system for semiconductor lithography Physics 0 Active

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