Litchstreet Company

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
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 WAVES2107

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5198823 Passive secondary surveillance radar using signals of remote SSR and multiple antennas switched in synchronism with rotation of SSR beamDec 23, 91Mar 30, 93[G01S]
5196856 Passive SSR system utilizing P3 and P2 pulses for synchronizing measurements of TOA dataJul 01, 92Mar 23, 93[G01S]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5140328 Virtual secondary surveillance radar using signals of remote SSRExpiredJan 07, 91Aug 18, 92[G01S]
4899156 Virtual ATCRBS using signals of remote SSRExpiredJul 13, 89Feb 06, 90[G01S]
4789865 Collision avoidance systemExpiredOct 21, 87Dec 06, 88[G08G, G01S]
4768036 Collision avoidance systemExpiredNov 06, 87Aug 30, 88[G08G, G01S]
4733241 Position finding and collision avoidance systemExpiredJun 24, 87Mar 22, 88[G01S]
4642648 Simple passive/active proximity warning systemExpiredMar 14, 84Feb 10, 87[G01S]
4486755 Collision avoidance systemExpiredFeb 22, 82Dec 04, 84[G01S]

Top Inventors for This Owner

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