Ralf Echterhoff — 2 Patents at Bayer Materialscience Ag

Ralf Echterhoff has been granted 2 US patents while listed as an inventor at Bayer Materialscience Ag. The first was granted in 2006 and the most recent in April 2007. Ralf Echterhoff ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Ralf Echterhoff in Dormagen, DE.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
7205430	Production of di- and polyisocyanates of the diphenylmethane series with defined acidity	Ulrich Liman, Heinz Muller, Robert Vieler	2007-04-17
7038002	Production of mixtures of diisocyanates and polyisocyanates from the diphenylmethane series with high contents of 4,4′-methylenediphenyl diisocyanate and 2,4′-methylenediphenyl diisocyanate	Hans-Georg Pirkl, Ulrich Liman, Robert Vieler	2006-05-02	$1,518,000

Ralf Echterhoff — 2 Patents

Issued Patents All Time

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