DD

Darrel D. Donaldson

DE Digital Equipment: 12 patents #49 of 2,100Top 3%
HP HP: 4 patents #4,446 of 16,619Top 30%
Ncr: 2 patents #884 of 2,952Top 30%
📍 Kettering, OH: #9 of 471 inventorsTop 2%
🗺 Ohio: #3,584 of 73,341 inventorsTop 5%
Overall (All Time): #242,079 of 4,157,543Top 6%
19
Patents All Time

Issued Patents All Time

Showing 1–19 of 19 patents

Patent #TitleCo-InventorsDate
6826653 Block data mover adapted to contain faults in a partitioned multiprocessor system Samuel H. Duncan, Frederick C. Canter, David W. Hartwell 2004-11-30
6711693 Method for synchronizing plurality of time of year clocks in partitioned plurality of processors where each partition having a microprocessor configured as a multiprocessor backplane manager David Golden 2004-03-23
6681282 Online control of a multiprocessor computer system David Golden 2004-01-20
6668335 System for recovering data in a multiprocessor system comprising a conduction path for each bit between processors where the paths are grouped into separate bundles and routed along different paths Scott E. Breach, John Eble, Arvind Kumar, Richard E. Kessler, David W. Hartwell 2003-12-23
5311081 Data bus using open drain drivers and differential receivers together with distributed termination impedances Roger Dame, Ronald E. Nikel 1994-05-10
5297269 Cache coherency protocol for multi processor computer system Mark N. Howard, David A. Orbits, John M. Parchem, David Robinson, Douglas D. Williams 1994-03-22
5229926 Power supply interlock for a distributed power system Daniel Wissell 1993-07-20
5146563 Node with coupling resistor for limiting current flow through driver during overlap condition Richard B. Gillett, Jr. 1992-09-08
5111424 Lookahead bus arbitration system with override of conditional access grants by bus cycle extensions for multicycle data transfer Richard B. Gillett, Jr. 1992-05-05
5034883 Lockhead bus arbitration system with override of conditional access grants by bus cycle extensions for multicycle data transfers Richard B. Gillett, Jr. 1991-07-23
5003467 Node adapted for backplane bus with default control Richard B. Gillett, Jr. 1991-03-26
4980854 Lookahead bus arbitration system with override of conditional access grants by bus cycle extensions for multicycle data transfers Richard B. Gillett, Jr. 1990-12-25
4947368 Lookahead bus arbitration system with override of conditional access grants by bus cycle extensions for multicycle data transfers Richard B. Gillett, Jr. 1990-08-07
4922449 Backplane bus system including a plurality of nodes Richard B. Gillett Jr. 1990-05-01
4837736 Backplane bus with default control Richard B. Gillett, Jr. 1989-06-06
4829515 High performance low pin count bus interface Richard B. Gillett, Jr., Douglas D. Williams 1989-05-09
4774422 High speed low pin count bus interface Richard B. Gillett, Jr., Douglas D. Williams 1988-09-27
4527074 High voltage pass circuit Edward H. Honnigford, Alan D. Poeppelman 1985-07-02
4271487 Static volatile/non-volatile ram cell Donald G. Craycraft, George C. Lockwood 1981-06-02