Trex Communications Corporation

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H04B TRANSMISSION 3207
 
  
 
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
6347001 Free-space laser communication system having six axes of movementNov 03, 98Feb 12, 02[H04B]
6285481 Free-space laser communications error control systemSep 05, 97Sep 04, 01[H04B]
6151340 Method and apparatus for locking the wavelength of beacon beam in a free-space laser communications systemJul 27, 98Nov 21, 00[H01S]
5801866 Laser communication deviceJun 21, 96Sep 01, 98[H04B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6373607 Liquid crystal variable retarder for free-space laser communication systemExpiredMay 22, 98Apr 16, 02[H04B]
6191878 Optical communication systemExpiredSep 02, 97Feb 20, 01[H04B]
5754323 Point-to-point laser communication deviceExpiredApr 01, 94May 19, 98[H04B]
5731585 Voigt filterExpiredAug 27, 92Mar 24, 98[G02B, H04K]
5710652 Laser communication transceiver and systemExpiredFeb 22, 94Jan 20, 98[H04B]

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