Michael Höffer

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Wuppertal, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for determining changes in liquid media, in particular coat...
- Patent number 6,779,382
- Issue date Aug 24, 2004
- E. I. Du Pont de Nemours and Company
- Paul Rupieper
- G01 - MEASURING TESTING
Information Patent Grant
Process and device for determining changes in liquid media, in part...
- Patent number 6,581,440
- Issue date Jun 24, 2003
- E. I. Du Pont de Nemours and Company
- Paul Rupieper
- G01 - MEASURING TESTING
Information Patent Grant
Method and an apparatus for the characterisation of lacquered surfaces
- Patent number 5,991,042
- Issue date Nov 23, 1999
- Herberts GmbH
- Paul Rupieper
- G01 - MEASURING TESTING