AT&T VENTURE COMPANY, L.P.

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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 CONTOURS495
 
  
 
H01J ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS 4124
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 3203
 
  
 
G01K MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR 145

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5641897 Scanning apparatus linearization and calibration systemNov 20, 95Jun 24, 97[H01J]
5510615 Scanning probe microscope apparatus for use in a scanning electron microscopeJun 07, 95Apr 23, 96[H01J]
5507179 Synchronous sampling scanning force microscopeDec 21, 94Apr 16, 96[G01N, G01B]
5481908 Resonance contact scanning force microscopeApr 28, 93Jan 09, 96[G01B]
5469734 Scanning apparatus linearization and calibration systemDec 15, 94Nov 28, 95[H01J]
5455420 Scanning probe microscope apparatus for use in a scanning electronJul 12, 94Oct 03, 95[H01J]
5441343 Thermal sensing scanning probe microscope and method for measurement of thermal parameters of a specimenSep 27, 93Aug 15, 95[G01K, G01N, G01B]
5406832 Synchronous sampling scanning force microscopeJul 02, 93Apr 18, 95[G01N, G01B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5625142 Resonance contact scanning force microscopeExpiredJul 11, 95Apr 29, 97[G01B]
5319960 Scanning force microscopeExpiredMar 06, 92Jun 14, 94[G01B]
5291775 Scanning force microscope with integrated optics and cantilever mountExpiredMar 04, 92Mar 08, 94[G01N, G01B]
5260622 High resolution electromechanical translation deviceExpiredSep 24, 91Nov 09, 93[H01L]
5257024 Search position encoderExpiredFeb 20, 90Oct 26, 93[H03M, G11C]
5009111 Differential force balance apparatusExpiredAug 31, 88Apr 23, 91[G01L, G01P]
4968914 High resolution electromechanical translation deviceExpiredMar 24, 89Nov 06, 90[H01L]
4956817 High density data storage and retrieval systemExpiredMay 26, 88Sep 11, 90[G11C]
4952857 Scanning micromechanical probe control systemExpiredMar 24, 89Aug 28, 90[G05B]

Top Inventors for This Owner

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