DEPARTMENT 13, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H04B TRANSMISSION 4206
 
  
 
H04J MULTIPLEX COMMUNICATION 3122
 
  
 
H04K SECRET COMMUNICATION; JAMMING OF COMMUNICATION256
 
  
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 2283
 
  
 
H01Q AERIALS 1109
 
  
 
H03K PULSE TECHNIQUE 1130

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8098751 Software adaptable high performance multicarrier transmission protocolJul 22, 08Jan 17, 12[H04K]
7839941 Multiple access method and systemFeb 28, 06Nov 23, 10[H04L]
7835455 Frequency-shifted feedback cavity used as a phased array antenna controller and carrier interference multiple access spread-spectrum transmitterApr 07, 05Nov 16, 10[H04L]
7787514 Carrier interferometry coding with applications to cellular and local area networksOct 30, 03Aug 31, 10[H04B]
7639597 Method and apparatus for transmitting signals having a carrier-interferometry architectureFeb 02, 04Dec 29, 09[H04J]
7418043 Software adaptable high performance multicarrier transmission protocolDec 08, 03Aug 26, 08[H04K]
7406261 Unified multi-carrier framework for multiple-access technologiesFeb 07, 03Jul 29, 08[H04J]
7317750 Orthogonal superposition coding for direct-sequence communicationsApr 16, 03Jan 08, 08[H04B]
7076168 Method and apparatus for using multicarrier interferometry to enhance optical fiber communicationsOct 31, 00Jul 11, 06[H04J]
6888887 Frequency-shifted feedback cavity used as a phased array antenna controller and carrier interference multiple access spread-spectrum transmitterSep 10, 99May 03, 05[H03K]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2007/0025,421 Method and Apparatus for Using Multicarrier Interferometry to Enhance optical Fiber CommunicationsAbandonedJun 14, 06Feb 01, 07[H04B, H04K]
7010048 Multiple access method and systemExpiredFeb 10, 99Mar 07, 06[H04B]

Top Inventors for This Owner

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