DORNE & MARGOLIN, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B61L GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC 125
 
  
 
H01Q AERIALS 1109

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5697583 Radio frequency coupler for communication between adjacent railway carsSep 13, 96Dec 16, 97[B61L]
5650792 Combination GPS and VHF antennaSep 19, 94Jul 22, 97[H01Q]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6061031 Method and apparatus for a dual frequency band antennaExpiredApr 17, 97May 09, 00[H01Q]
5943017 Dual near-field focused antenna arrayExpiredSep 29, 97Aug 24, 99[H01Q]
5864318 Composite antenna for cellular and gps communicationsExpiredApr 24, 97Jan 26, 99[H01Q]
5673052 Near-field focused antennaExpiredDec 13, 95Sep 30, 97[H01Q]
5453753 Mechanically steerable modular planar patch array antennaExpiredSep 08, 93Sep 26, 95[H01Q]

Top Inventors for This Owner

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