David McWherter

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Bensalem, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Processor with enhanced instruction set
- Patent number 6,205,540
- Issue date Mar 20, 2001
- Franklin Electronic Publishers Incorporated
- Robert Grieb
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Electronic word building machine
- Patent number 5,435,564
- Issue date Jul 25, 1995
- Franklin Electronic Publishers, Incorporated
- Stephen Kennedy
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Electronic spelling machine having ordered candidate words
- Patent number 5,218,536
- Issue date Jun 8, 1993
- Franklin Electronic Publishers, Incorporated
- David McWherter
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Word spelling and definition educational device
- Patent number 5,203,705
- Issue date Apr 20, 1993
- Franklin Electronic Publishers, Incorporated
- George P. Hardy
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Search improvements for electronic spelling machine
- Patent number 5,113,340
- Issue date May 12, 1992
- Franklin Electronic Publishers, Incorporated
- David McWherter
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Electronic word game machine
- Patent number 4,891,775
- Issue date Jan 2, 1990
- Franklin Computer Corporation
- David McWherter
- A63 - SPORTS GAMES AMUSEMENTS