CARL ZEISS, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
A61B DIAGNOSIS; SURGERY; IDENTIFICATION 18222
 
  
 
A61N ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY 2105
 
  
 
G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS297
 
  
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 2203
 
  
 
G06K RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS 2196
 
  
 
G01J MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY 177
 
  
 
G03B APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR 196
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 1361
 
  
 
H01S DEVICES USING STIMULATED EMISSION191

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6406146 Wavefront refractor simultaneously recording two hartmann-shack imagesSep 21, 00Jun 18, 02[A61B]
6382795 Method and apparatus for measuring refractive errors of an eyeMay 20, 00May 07, 02[A61B]
6325512 Retinal tracking assisted optical coherence tomographyOct 31, 00Dec 04, 01[A61B]
6293674 Method and apparatus for diagnosing and monitoring eye diseaseJul 11, 00Sep 25, 01[A61B]
6220706 Method and apparatus for determining position of an eyeFeb 10, 00Apr 24, 01[A61B]
6139150 Compact visual field testerJan 22, 99Oct 31, 00[A61B]
6053613 Optical coherence tomography with new interferometerMay 15, 98Apr 25, 00[A61B]
6004314 Optical coherence tomography assisted surgical apparatusMar 31, 97Dec 21, 99[A61N]
5805271 Refractively corrected, wavelength selective, transparent occluder for a non-tested eye for visual field testingOct 24, 96Sep 08, 98[A61B]
5795295 OCT-assisted surgical microscope with multi-coordinate manipulatorJun 25, 96Aug 18, 98[A61B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6422701 Visual field testerExpiredAug 10, 01Jul 23, 02[A61B]
6407872 Optical path length scanner using moving prismsExpiredFeb 16, 01Jun 18, 02[G02B]
6382793 Method and apparatus for measuring a wavefrontExpiredMay 20, 00May 07, 02[A61B]
6382794 Method and apparatus for mapping a corneal contour and thickness profileExpiredSep 27, 99May 07, 02[A61B]
5975699 Method and apparatus for simultaneously measuring the length and refractive error of an eyeExpiredApr 29, 98Nov 02, 99[A61B]
5412681 Slab-waveguide CO.sub.2 laserExpiredMar 30, 94May 02, 95[H01S]
5351251 Laser apparatusExpiredMar 30, 93Sep 27, 94[H01S]
5208619 Automatic refractor, lensmeter and keratometer utilizing Badal opticsExpiredJul 18, 91May 04, 93[A61B]
5198867 Adaption of lensmeter optics for minimizing contact lens spherical aberrationExpiredMay 07, 91Mar 30, 93[G01B]
5175594 Lensmeter with correction for refractive index and spherical aberrationExpiredApr 16, 90Dec 29, 92[G01B]
5157427 Objective refractorExpiredApr 16, 90Oct 20, 92[A61B]
4934370 Pinhole focused optics for locating visual axis of the eye for ultrasonic interior measurementExpiredSep 09, 88Jun 19, 90[A61B]
4902121 Range detector for eye instrument having interrogating beamExpiredOct 04, 88Feb 20, 90[A61B]
4739410 Superimposed analog video image on plotted digital field tester displayExpiredDec 17, 86Apr 19, 88[H04N]
4732466 Fundus cameraExpiredApr 04, 85Mar 22, 88[A61B]
4730910 Wide angle lens system having flare rejection propertiesExpiredSep 18, 85Mar 15, 88[G02B]
4695831 Light pen having actuating accelerometerExpiredMay 06, 85Sep 22, 87[G09G]
4675736 Superimposed analog video image on plotted digital field tester displayExpiredSep 25, 85Jun 23, 87[H04N]
4640596 Objective refractor for the eyeExpiredAug 09, 82Feb 03, 87[A61B]
4561738 Field testerExpiredOct 26, 82Dec 31, 85[A61B]

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