Robert A. Hartman

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Eindhoven, NL

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Patents Grantslast 30 patents

Information Patent Grant
Display device
- Patent number 5,684,504
- Issue date Nov 4, 1997
- U.S. Philips Corporation
- Antonius G. H. Verhulst
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Fast response electro-optic display device
- Patent number 5,495,265
- Issue date Feb 27, 1996
- U.S. Philips Corporation
- Robert A. Hartman
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Display device
- Patent number 5,161,237
- Issue date Nov 3, 1992
- U.S. Philips Corporation
- Robert A. Hartman
- G02 - OPTICS
Information Patent Grant
Test method for LCD elements
- Patent number 4,843,312
- Issue date Jun 27, 1989
- U.S. Philips Corporation
- Robert A. Hartman
- G01 - MEASURING TESTING