NAGRA PLUS S.A.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H04N PICTORIAL COMMUNICATION, e.g. TELEVISION 1241

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5375168 Method for scrambling and unscrambling a video signalOct 17, 91Dec 20, 94[H04N]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5144663 Method of interactive communication between a subscriber and a decoder of a system of pay-television and decoder thereofExpiredNov 13, 90Sep 01, 92[H04N, H04K]
5134656 Pre-payment television system using a memory card associated with a decoderExpiredOct 19, 90Jul 28, 92[H04N]

Top Inventors for This Owner

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