David A. Rieker

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Cambridge, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Hardware and software controlled on/off circuit for computers
- Patent number 6,230,273
- Issue date May 8, 2001
- NCR Corporation
- David A. Rieker
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Circuit and method for energizing a solenoid in an electronic devic...
- Patent number 5,111,394
- Issue date May 5, 1992
- NCR Corporation
- Wilbur I. Hilles
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Electronic keylock system
- Patent number 4,891,636
- Issue date Jan 2, 1990
- NCR Corporation
- David A. Rieker
- G07 - CHECKING-DEVICES
Information Patent Grant
Dynamic RAM refresh circuit with DMA access
- Patent number 4,884,234
- Issue date Nov 28, 1989
- NCR Corporation
- John B. Keys
- G06 - COMPUTING CALCULATING COUNTING