HUGHES DANBURY OPTICAL SYSTEMS, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B22D CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES 148
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 1361

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6191404 Two-sided solid-state imager in a navigational deviceFeb 25, 92Feb 20, 01[B22D]
5162251 Method for making thinned charge-coupled devicesMar 18, 91Nov 10, 92[H01L]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5204886 Method of improving an x-ray lithography beamline uniformityExpiredDec 06, 91Apr 20, 93[G01D]
5180150 Apparatus for providing consistent registration of semiconductor wafersExpiredJan 24, 92Jan 19, 93[B25B]
5168924 Low surface distortion monochromatorExpiredJun 28, 91Dec 08, 92[G02B, F28F]
5159408 Optical thickness profiler using synthetic wavelengthsExpiredMar 27, 91Oct 27, 92[G01B]
5153669 Three wavelength optical measurement apparatus and methodExpiredMar 27, 91Oct 06, 92[G01B]
5135307 Laser diode interferometerExpiredMay 30, 90Aug 04, 92[G01B]
4989969 Time of flight velocimeterExpiredJun 30, 88Feb 05, 91[G01P]
4881711 Full format variable width film hold-down deviceExpiredMar 21, 88Nov 21, 89[G03B]
4810621 Contact lithographic fabrication of patterns on large opticsExpiredMar 27, 87Mar 07, 89[G03C]
4797609 LED monitoring without external light detectionExpiredDec 12, 83Jan 10, 89[G01R]
4794814 Mechanical stopExpiredMay 18, 87Jan 03, 89[G05G]
4641967 Particle position correlator and correlation method for a surface scannerExpiredOct 11, 85Feb 10, 87[G01N]
4622574 Semiconductor chip with recessed bond padsExpiredJul 29, 85Nov 11, 86[H01L]
4560272 Three-axis angle sensorExpiredSep 04, 84Dec 24, 85[G01B]
4433245 Fraunhofer line discriminatorExpiredJan 25, 82Feb 21, 84[F21V]
4429991 Method for detecting physical anomalies of U.S. currencyExpiredAug 17, 81Feb 07, 84[G01N, G01B]
4330092 In-line shredder apparatusExpiredDec 07, 79May 18, 82[B02C]
4323230 Machine for separating bills and couponsExpiredDec 10, 79Apr 06, 82[B65H]
4309108 Analyzer for coherent radiationExpiredFeb 05, 79Jan 05, 82[G02B, G01B]
4288781 Currency discriminatorExpiredJul 24, 79Sep 08, 81[G06K]

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