Norbert Leppert — 3 Patents at Basf Se

Norbert Leppert has been granted 3 US patents while listed as an inventor at Basf Se. The first was granted in 1984 and the most recent in December 1997. Norbert Leppert ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Norbert Leppert in Speyer, DE.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
5695686	Brightener mixtures based on bisstyryl compounds	Manfred Hauptreif, Karl-Heinz Etzbach, Helmut Reichelt, Peter Raatz, Manfred Herrmann	1997-12-09
4622037	Bleaching cotton-containing fabrics with hypochlorite at elevated temperatures	Werner Streit, Dieter Bassing, Karlheinz Gebert, Friedrich Klippel	1986-11-11
4450083	Agent for dissolving insoluble iron(III) compounds in highly alkaline textile treatment liquors	Werner Streit, Klaus Lorenz	1984-05-22

Norbert Leppert — 3 Patents

Issued Patents All Time

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