DF

Donald Lee Freerksen

IBM: 16 patents #6,952 of 70,183Top 10%
📍 Rochester, MN: #378 of 3,042 inventorsTop 15%
🗺 Minnesota: #4,601 of 52,454 inventorsTop 9%
Overall (All Time): #302,008 of 4,157,543Top 8%
16
Patents All Time

Issued Patents All Time

Showing 1–16 of 16 patents

Patent #TitleCo-InventorsDate
6871267 Method for increasing efficiency in a multi-processor system and multi-processor system with increased efficiency Gary Lippert 2005-03-22
6823431 Method for increasing efficiency in a multi-processor system and multi-processor system with increased efficiency Gary Lippert 2004-11-23
6557084 Apparatus and method to improve performance of reads from and writes to shared memory locations Sheldon B. Levenstein, Gary Lippert 2003-04-29
6425060 Circuit arrangement and method with state-based transaction scheduling Farnaz Mounes-Toussi 2002-07-23
6351791 Circuit arrangement and method of maintaining cache coherence utilizing snoop response collection logic that disregards extraneous retry responses Gary Lippert, Farnaz Mounes-Toussi 2002-02-26
6314491 Peer-to-peer cache moves in a multiprocessor data processing system Gary Lippert, John D. Irish 2001-11-06
6269425 Accessing data from a multiple entry fully associative cache buffer in a multithread data processing system Farnaz Mounes-Toussi 2001-07-31
6260117 Method for increasing efficiency in a multi-processor system and multi-processor system with increased efficiency Gary Lippert 2001-07-10
6035424 Method and apparatus for tracking processing of a command Peder James Paulson 2000-03-07
6000012 Method and apparatus for prioritizing and routing commands from a command source to a command sink Peder James Paulson 1999-12-07
6000011 Multi-entry fully associative transition cache Farnaz Mounes-Toussi, Peder James Paulson, John D. Irish, Lyle Edwin Grosbach 1999-12-07
4996660 Selection of divisor multipliers in a floating point divide circuit Thomas J. Beacom 1991-02-26
4979142 Two-bit floating point divide circuit with single carry-save adder Richard G. Allen 1990-12-18
4975868 Floating-point processor having pre-adjusted exponent bias for multiplication and division 1990-12-04
4941120 Floating point normalization and rounding prediction circuit Jeffrey Douglas Brown, Scott A. Hilker, Daniel Stasiak 1990-07-10
4926370 Method and apparatus for processing postnormalization and rounding in parallel Jeffrey Douglas Brown, Scott A. Hilker, Daniel Stasiak 1990-05-15