Joachim Keyser

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Wildeberg, DE

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Patents Grantslast 30 patents

Information Patent Grant
Removal of particles from solid-state surfaces by laser bombardment
- Patent number 4,980,536
- Issue date Dec 25, 1990
- International Business Machines Corporation
- Karl Asch
- B08 - CLEANING
Information Patent Grant
Mask for ion, electron or X-ray lithography and method of making it
- Patent number 4,855,197
- Issue date Aug 8, 1989
- International Business Machines Corporation
- Werner Zapka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Contact device for releasably connecting electrical components
- Patent number 4,522,893
- Issue date Jun 11, 1985
- International Business Machines Corporation
- Harald Bohlen
- H01 - BASIC ELECTRIC ELEMENTS