Alliant Computer Systems Corporation

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5133059 Computer with multiple processors having varying priorities for access to a multi-element memoryExpiredJan 10, 91Jul 21, 92[G06F]
5099447 Blocked matrix multiplication for computers with hierarchical memoryExpiredJan 22, 90Mar 24, 92[G06F]
4967392 Drawing processor for computer graphic system using a plurality of parallel processors which each handle a group of display screen scanlinesExpiredJul 27, 88Oct 30, 90[G06F]
4794521 Digital computer with cache capable of concurrently handling multiple accesses from parallel processorsExpiredJul 22, 85Dec 27, 88[G06F]
4783736 Digital computer with multisection cacheExpiredJul 22, 85Nov 08, 88[G06F]

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