Ronald Kefferstein

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Saint Victoret, FR

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Patents Grantslast 30 patents

Information Patent Grant
Process for the manufacture of a part with very high mechanical pro...
- Patent number 6,564,604
- Issue date May 20, 2003
- Unisor
- Ronald Kefferstein
- C21 - METALLURGY OF IRON
Information Patent Grant
Treatment composition based on pregelatinized starch and process fo...
- Patent number 6,447,590
- Issue date Sep 10, 2002
- Usinor
- Ronald Kefferstein
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Composition for temporarily protecting metal components from corros...
- Patent number 6,309,697
- Issue date Oct 30, 2001
- Sollac
- Lothaire Scherer
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Process for treating the surface of metal parts
- Patent number 6,063,447
- Issue date May 16, 2000
- Sollac
- Claude Morand
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents

Information Patent Application
Process for the manufacture of a part with very high mechanical pro...
- Publication number 20010042393
- Publication date Nov 22, 2001
- Ronald Kefferstein
- C21 - METALLURGY OF IRON