Leica Heerbrugg AG

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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 CONTOURS297
 
  
 
G01C MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY 2103
 
  
 
G01J MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY 177
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 1158
 
  
 
G01S RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES1108
 
  
 
H04B TRANSMISSION 1209

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5371951 Two-axis inclinometerApr 06, 92Dec 13, 94[G01C]
5331395 Device for aligning a laser leveling instrument along a building lineOct 09, 92Jul 19, 94[G01C]
5294971 Wave front sensorOct 07, 91Mar 15, 94[G01J]
5289254 Process and apparatus for testing optical components or systemsFeb 06, 92Feb 22, 94[G01B]
5283528 Circuit arrangement for measuring the ratio of the capacitance values of two capacitorsMar 06, 92Feb 01, 94[G01R]
5252982 Method of precise position determinationApr 23, 92Oct 12, 93[H04B, G01S]
5159760 Device for aligning a geodetic instrument over a defined position markMar 08, 91Nov 03, 92[G01B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5438452 Blooming protection for a nightsightExpiredSep 23, 92Aug 01, 95[G02B, G03B]
5102220 Pulse delay measuring circuitExpiredNov 06, 90Apr 07, 92[H03D, G01C, G01S]
4993162 Apparatus for measuring inclinations of a componentExpiredJul 19, 88Feb 19, 91[G01C]
4916324 Method and apparatus for electro-optical distance measurementExpiredSep 29, 88Apr 10, 90[G01N]
4759623 Electrooptical distance measuring apparatusExpiredJun 10, 86Jul 26, 88[G01C, H01S]

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