Ralf Eck — 9 Patents at Schwarzkopf Development

Ralf Eck has been granted 9 US patents while listed as an inventor at Schwarzkopf Development. The first was granted in 1988 and the most recent in March 1997. Ralf Eck ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Ralf Eck in Landeck, AT.

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #	Title	Co-Inventors	Date
5608174	Chromium-based alloy	Gunter Kneringer, Wolfgang Kock	1997-03-04
5407758	Material for the metal components of high-temperature fuel cell systems	Horst Greiner, Gunter Kneringer, Wolfgang Kock	1995-04-18
5239700	Multi-choice information system for a motor vehicle	Clemens Guenther, Christa Heiland-Franzen, Peter Knoll, Winfried Koenig, Georg Geiser +3 more	1993-08-24
5102474	Process for manufacturing semi-finished products from sintered refractory metal alloys	Gerhard Leichtfried	1992-04-07
5086510	Multi-choice information system for a motor vehicle	Clemens Guenther, Christa Heiland-Franzen, Peter Knoll, Winfried Koenig, Georg Geiser +3 more	1992-02-04
5051139	Process for the manufacture of semi-finished products or preformed parts made of refractory metals and resistant to thermal creep	—	1991-09-24
5021627	Electrode for resistance welding surface-treated sheets of steel and method of manufacturing such electrodes	Bernhard Bersch, Axel Fuchs	1991-06-04
4950327	Creep-resistant alloy of high-melting metal and process for producing the same	Gerhard Leichtfried	1990-08-21
4780902	Rotary anode for X-ray tubes	—	1988-10-25

Ralf Eck — 9 Patents

Issued Patents All Time

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