MARTIN, JOHN R.
Patent Owner
Stats
- 2 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Apr 25, 2000 most recent publication
Details
- 2 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 650 Total Citation Count
- Jun 30, 1978 Earliest Filing
- 3 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
- No Technology to Display
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Recent Publications
- No Recent Publications to Display
Recent Patents
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
4528589 Method and system for subscription television billing and accessExpiredFeb 01, 84Jul 09, 85[H04N]
4405942 Method and system for secure transmission and reception of video information, particularly for televisionExpiredMar 03, 82Sep 20, 83[H04N, H04K]
4225884 Method and system for subscription television billing and accessExpiredJun 30, 78Sep 30, 80[H04N]
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