Gerardus J. K. M. Koolen

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Eindhoven, NL

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Patents Grantslast 30 patents

Information Patent Grant
Low-cost resistive tablet with touch and stylus functionality
- Patent number 5,777,607
- Issue date Jul 7, 1998
- U.S. Philips Corporation
- Gerardus J. K. M. Koolen
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Force activated touch screen measuring deformation of the front panel
- Patent number 5,541,372
- Issue date Jul 30, 1996
- U.S. Philips Corporation
- Theunis S. Baller
- G06 - COMPUTING CALCULATING COUNTING