IP Library › Granted Patent US 5,089,980
Granted Patent Utility
US 5,089,980 · App. 07/648,680

Double keystroke fraction entry and interface method

Inventors: Chris M. Bunsen, Bruce A. Stephens
Patented Case View Patent ↗
Granted: Feb 18, 1992 Filed: Jan 31, 1991
Inventors
Chris M. Bunsen
Bruce A. Stephens
Assignee (at issue)
Hewlett-Packard Company, L.P.

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Quick Facts
Patent No.
US 5,089,980
App. No.
07/648,680
Filed
1991-01-31
Granted
1992-02-18
Kind
A