Hamdy A. Elwakil

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Hoffman Estates, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Encapsulated magnetic pigments, processes for their preparation and...
- Patent number 6,187,439
- Issue date Feb 13, 2001
- Marconi Data Systems Inc.
- Hamdy A. Elwakil
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Encapsulated magnetic particles pigments and carbon black, composit...
- Patent number 5,665,429
- Issue date Sep 9, 1997
- Videojet Systems International, Inc.
- Hamdy A. Elwakil
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Encapsulated magnetic particles pigments and carbon black, composit...
- Patent number 5,543,219
- Issue date Aug 6, 1996
- A. B. Dick Company
- Hamdy A. Elwakil
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY