Hellman, Martin E.

Patent Owner

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H04H BROADCAST COMMUNICATION 253
 
  
 
H04N PICTORIAL COMMUNICATION, e.g. TELEVISION 2240
 
  
 
H04B TRANSMISSION 1209
 
  
 
H04Q SELECTING 1109

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9124375 Tiered subscription broadcast systemJan 06, 14Sep 01, 15[H04H]
8627354 Tiered subscription broadcast systemDec 16, 05Jan 07, 14[H04N]
8401462 FM broadcast system competitive with satellite radioJun 17, 10Mar 19, 13[H04H]
8270901 Dropout-resistant media broadcasting systemDec 16, 05Sep 18, 12[H04B]
7865917 Security enhanced tiered subscription broadcast systemDec 16, 05Jan 04, 11[H04N]
7840178 FM broadcast system competitive with satellite radioJul 11, 06Nov 23, 10[H04Q]

Expired/Abandoned/Withdrawn Patents

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Top Inventors for This Owner

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