Carl Zeiss

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS198
 
 
 
H01J ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS 1127

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5251156 Method and apparatus for non-contact measurement of object surfacesJul 11, 91Oct 05, 93[G01B]
5239178 Optical device with an illuminating grid and detector grid arranged confocally to an objectNov 08, 91Aug 24, 93[H01J]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7453643 Blazed diffractive optical element and projection objective for a microlithographic projection exposure apparatusExpiredNov 17, 05Nov 18, 08[G02B]
2003/0161,038 Microscope and method for measuring surface topography in a quantitative and optical mannerAbandonedFeb 19, 03Aug 28, 03[G02B]
5107117 Optoelectronic viewing systemExpiredJun 07, 90Apr 21, 92[G02B]
5068972 Coordinate-measuring machineExpiredOct 26, 90Dec 03, 91[G01B]
4655555 Objective with aspheric surfaces for imaging microzonesExpiredNov 28, 84Apr 07, 87[G02B]

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