Helmuth Menig has been granted 7 US patents while listed as an inventor at Basf Se . The first was granted in 1985 and the most recent in November 2007. Helmuth Menig ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Helmuth Menig in Friedelsheim, DE.
Patents per Year Patents granted per year, 1985 to 2007 Bar chart with a peak of 2 patents in 2000. peak 2 1985: 1 patents 1985 1999: 1 patents 1999 2000: 2 patents 2000 2001: 2 patents 2001 2007: 1 patents 2007
Issued Patents All Time
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Showing 1–7 of 7 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
7294326 Hydrocyanic acid consisting of formamide Peter Bassler , Wolfgang Siegel , Guenther Achhammer , Anton Negele , Wilhelm Ruppel +3 more 2007-11-13
6255534 Preparation of carbonyl compounds Dirk Demuth , Thomas Fetzer , Volker Pratsch , Thomas Martin WENDRICH , Ludwig Wambach +1 more 2001-07-03
$268,000
6214172 Preparation of methylglyoxal dimethyl acetal Carsten Groning , Klaus Ebel , Gerd Kaibel , Jörg Therre , Jurgen Koopmann +2 more 2001-04-10
$348,000
6133482 Method for producing carbonyl compounds Thomas Fetzer , Dirk Demuth , Heinz Rutter , Peter Resch , Wilhelm Ruppel +1 more 2000-10-17
$150,000
6072087 Method for producing carbonyl compounds Thomas Fetzer , Dirk Demuth , Heinz Rutter , Peter Resch , Wilhelm Ruppel +1 more 2000-06-06
5936126 Process for reacting an organic compound in the presence of a supported ruthenium catalyst Thomas Ruhl , Boris Breitscheidel , Jochem Henkelmann , Wolfgang Reif , Sabine Weiguny 1999-08-10
4560769 Preparation of pyrroles Martin Fischer , Karl Baer 1985-12-24
