Richard M. Spangler

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Loveland, CO, US

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Patents Grantslast 30 patents

Information Patent Grant
Programmable calculator including program variable initialization m...
- Patent number 4,546,448
- Issue date Oct 8, 1985
- Hewlett-Packard Company
- Richard M. Spangler
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Electronic computing apparatus employing basic language
- Patent number 4,366,553
- Issue date Dec 28, 1982
- Hewlett-Packard Company
- Richard M. Spangler
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Programmable calculator having structure for controlling an x-y plo...
- Patent number 4,322,816
- Issue date Mar 30, 1982
- Hewlett-Packard Company
- Richard M. Spangler
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Programmable calculator having extended input/output capability
- Patent number 4,127,897
- Issue date Nov 28, 1978
- Hewlett-Packard Company
- Richard M. Spangler
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Programmable calculator including terminal control means
- Patent number 4,126,898
- Issue date Nov 21, 1978
- Hewlett-Packard Company
- Richard M. Spangler
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Programmable calculator
- Patent number 4,012,725
- Issue date Mar 15, 1977
- Hewlett-Packard Company
- Richard M. Spangler
- G06 - COMPUTING CALCULATING COUNTING