CENTRAK, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G08B SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS 1381
 
  
 
H04B TRANSMISSION 4206
 
  
 
H04W WIRELESS COMMUNICATION NETWORKS 4184
 
  
 
E05B LOCKS; ACCESSORIES THEREFOR; HANDCUFFS347
 
  
 
H04Q SELECTING 2108
 
  
 
G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS198
 
  
 
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
 
  
 
G06K RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS 1197

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9794904 System and method of super synchronization in RTLSDec 16, 15Oct 17, 17[H04B, H04W]
9767662 Anti-theft security device and perimeter detection systemSep 15, 15Sep 19, 17[G08B, E05B]
9622030 Methods and systems for synchronized ultrasonic real time locationNov 21, 14Apr 11, 17[G08B, H04W]
9589462 System and method for CCX based sensor data tracking with highly assured data deliveryMar 29, 13Mar 07, 17[G08B, G08C]
9510146 System and method of super synchronization in RTLSOct 01, 14Nov 29, 16[H04W]
9341700 System and method for multimode Wi-Fi based RTLSFeb 01, 13May 17, 16[H04W, G01S]
9306665 System and method for infrared signal-strength RTLSOct 24, 14Apr 05, 16[H04B, H04W, H04J]
9298958 System and method of enhanced RTLS for improved performance in wireless networksMay 02, 13Mar 29, 16[H04Q, H04W, G06K]
9231699 Methods and systems for synchronized infrared real time locationMar 19, 12Jan 05, 16[H04B]
9219984 System and method of super synchronization in RTLSDec 20, 13Dec 22, 15[H04B, H04W]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
8514078 Anti-theft security device and perimeter detection systemExpiredJan 11, 10Aug 20, 13[G08B]
7671741 Anti-theft security device and perimeter detection systemExpiredJul 27, 06Mar 02, 10[G08B]
7378964 Very low power active RFID receiverExpiredAug 01, 05May 27, 08[G08B]

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