Individual holder
HELLMAN MARTIN E
US·6 granted patents·1,681 citations·filing 1983–2014
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
6 records- 0197US4658093ASoftware distribution systemHELLMAN MARTIN E·Filed 1983·Granted Apr 14, 1987·1.5k cites·10 claims
- 0292US7865917B2Security enhanced tiered subscription broadcast systemHELLMAN MARTIN E·Filed 2005·Granted Jan 4, 2011·25 cites·12 claims
- 0387US4633036AMethod and apparatus for use in public-key data encryption systemHELLMAN MARTIN E·Filed 1984·Granted Dec 30, 1986·101 cites·24 claims
- 0483US8627354B2Tiered subscription broadcast systemHELLMAN MARTIN E·Filed 2005·Granted Jan 7, 2014·8 cites·37 claims
- 0578US8270901B2Dropout-resistant media broadcasting systemHELLMAN MARTIN E·Filed 2005·Granted Sep 18, 2012·6 cites·32 claims
- 0654US9124375B1Tiered subscription broadcast systemHELLMAN MARTIN E·Filed 2014·Granted Sep 1, 2015·0 cites·18 claims
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