Guido Keller

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Zurich, CH

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Patents Grantslast 30 patents

Information Patent Grant
Process and apparatus for controlling the inking process in a print...
- Patent number 6,041,708
- Issue date Mar 28, 2000
- Heidelberger Druckmaschinen Atkiengesellschaft
- Helmut Kipphan
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Process and apparatus for controlling the inking process in a print...
- Patent number 5,182,721
- Issue date Jan 26, 1993
- Heidelberger Druckmaschinen Aktiengesellschaft
- Helmut Kipphan
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Process and apparatus for the ink control of a printing machine
- Patent number 4,975,862
- Issue date Dec 4, 1990
- GRETAG Aktiengesellschaft
- Guido Keller
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Process and apparatus for evaluating printing quality and for regul...
- Patent number 4,649,502
- Issue date Mar 10, 1987
- GRETAG Aktiengesellschaft
- Guido Keller
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS