4. Error detection/correction and fault detection/recovery
  5. Data processing system error or fault handling
  6. Reliability and availability

Preview Systems, Inc.

Corporate Assignee

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Corporate Assignee

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Advertising-subsidized and advertising-enabled software

Data processing: financial – business practice – management – or co – Automated electrical financial or business practice or... – Discount or incentive
Reexamination Certificate

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Digital Certificate

Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Central trusted authority provides computer authentication
Reexamination Certificate

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Digital product execution control

Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Patent

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Multi-tier electronic software distribution

Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Protection at a particular protocol layer
Patent

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Relicensing of electronically purchased software

Data processing: financial – business practice – management – or co – Automated electrical financial or business practice or...
Patent

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