Control Data Corporation

Patent Owner

Follow Compare Add to Portfolio



Patent Activity in the Last 10 Years


Intl Class Technology Matters Rank in Class

Top Patents (by citation)

Upgrade to the Premium Level to View Top Patents for this Owner. Learn More

Recent Publications

  • No Recent Publications to Display

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5,233,686 Open systems software backplane architecture for federated execution of independent application programsSep 24, 91Aug 03, 93[G06F]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5,407,763 Mask alignment mark systemExpiredMay 28, 92Apr 18, 95[G03F]
5,305,442 Generalized hierarchical architecture for bus adaptersExpiredMar 27, 92Apr 19, 94[G06F]
5,261,071 Dual pipe cache memory with out-of-order issue capabilityExpiredMar 21, 91Nov 09, 93[G06F]
5,241,638 Dual cache memoryExpiredAug 12, 85Aug 31, 93[G06F]
5,208,838 Clock signal multiplierExpiredMar 30, 90May 04, 93[H04L]
5,161,986 Low inductance circuit apparatus with controlled impedance cross-unders and connector for connecting to backpanelsExpiredOct 15, 91Nov 10, 92[H01R]
5,153,882 Serial scan diagnostics apparatus and method for a memory deviceExpiredMar 29, 90Oct 06, 92[G01R]
5,067,106 Radiation detection and signal delay circuitry for protecting recorded dataExpiredSep 05, 89Nov 19, 91[G06F]
5,027,355 Logic circuit and design method for improved testabilityExpiredApr 14, 89Jun 25, 91[G01R, G06F]
4,999,771 Communications networkExpiredAug 31, 87Mar 12, 91[G06F]
4,970,643 Mechanism for lock-up free cache operation with a remote address translation unitExpiredMay 10, 88Nov 13, 90[G06F]
4,958,214 Protective carrier for semiconductor packagesExpiredApr 22, 88Sep 18, 90[H01L]
4,958,371 Method and apparatus for determining when a telephone handset is off-hookExpiredApr 19, 88Sep 18, 90[H04M]
4,941,119 Method and apparatus for predicting an overflow in an integer multiplyExpiredNov 30, 88Jul 10, 90[G06F]
4,931,722 Flexible imbedded test system for VLSI circuitsExpiredMar 23, 89Jun 05, 90[G01R, G06F]
4,922,184 Apparatus and process for the simultaneous continuity sensing of multiple circuitsExpiredAug 29, 88May 01, 90[G01R]
4,922,434 Linear interpolation for a component placement robotExpiredJun 16, 88May 01, 90[G06F]
4,912,709 Flexible VLSI on-chip maintenance and test system with unit I/O cell designExpiredOct 23, 87Mar 27, 90[G01R]
4,905,371 Method for cleaning process controlExpiredAug 26, 88Mar 06, 90[H05K]
4,897,764 Conductive cooling cup moduleExpiredOct 31, 88Jan 30, 90[H01L]

View all patents..

Top Inventors for This Owner

Upgrade to the Premium Level to View Top Inventors for this Owner. Learn More

We are sorry but your current selection exceeds the maximum number of comparisons () for this membership level. Upgrade to our Level for up to -1 comparisons!

We are sorry but your current selection exceeds the maximum number of portfolios (0) for this membership level. Upgrade to our Level for up to -1 portfolios!.