Gerd Duembgen — 13 Patents at Basf Se

Gerd Duembgen has been granted 13 US patents while listed as an inventor at Basf Se. The first was granted in 1980 and the most recent in June 1993. Gerd Duembgen ranks #362,438 of 4,157,543 US inventors in our database (top 8.7%). Patent records list Gerd Duembgen in Schifferstadt, DE.

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Showing 1–13 of 13 patents

Patent #	Title	Co-Inventors	Date
5221767	Compositions of the formula Mo.sub.12 P.sub.a V.sub.b X.sup.1 c X.sup.2 d X.sup.3 e Sb.sub.f Re.sub.g S.sub.h O.sub.n	Karl-Heinz Boehning, Ulrich Hammon, Richard Krabetz, Franz Merger, Matthias Schwarzmann +2 more	1993-06-22
5173468	Compositions of the formula MO.sub.12 P.sub.a V.sub.b X.sup.1.sub.c X.sup.2.sub.d X.sup.3.sub.e Sb.sub.f Re.sub.g S.sub.h O.sub.n	Karl-Heinz Boehning, Ulrich Hammon, Richard Krabetz, Franz Merger, Matthias Schwarzmann +2 more	1992-12-22
5087744	Preparation of methacrylic acid	Richard Krabetz, Franz Merger, Michael Jaeger, Fritz Thiessen, Herbert Vogal	1992-02-11
4925823	Process and catalyst for the preparation of methacrylic acid	Richard Krabetz, Friedbert Nees, Franz Merger, Gerd Fouquet	1990-05-15
4638085	Preparation of methyl methacrylate from methacrolein	Franz J. Broecker, Gerd Fouquet, Richard Krabetz, Franz Merger, Friedbert Nees	1987-01-20
4623668	Preparation of methanol	Franz J. Broecker, Wolfgang Pies, Gottfried Schlichthaerle, Guenter Weber	1986-11-18
4595778	Preparation of methacrylic acid and catalyst therefor	Gerd Fouquet, Richard Krabetz, Franz Merger, Friedbert Nees	1986-06-17
4520125	Catalyst for the preparation of methyl methacrylate	Karl Baer, Peter Bassler, Gerd Fouquet, Richard Krabetz, Franz Merger +1 more	1985-05-28
4496770	Process for the preparation of .alpha.-alkylacroleins	Gerd Fouquet, Richard Krabetz, Ekhart Lucas, Franz Merger, Friedbert Nees	1985-01-29
4301126	Process for destroying phosgene	Erfried Voelkl, Gerhard Pforr	1981-11-17
4298763	Preparation of .alpha.,.beta.-olefinically unsaturated aldehydes of 3 or 4 carbon atoms	Heinz Engelbach, Richard Krabetz, Carl-Heinz Willersinn, Walter Beitelschmidt	1981-11-03
4259211	Catalyst for the oxidation of acrolein and methacrolein to acrylic acid and methacrylic acid, respectively	Richard Krabetz, Walter Herrmann, Norbert Scholz, Heinz Engelbach, Gerd-Juergen Engert +2 more	1981-03-31
4192807	Manufacture of .gamma.-butyrolactone from maleic anhydride	Franz J. Broecker, Helmut Glietenberg, Ernest Miesen, Matthias Schwarzmann	1980-03-11

Gerd Duembgen — 13 Patents

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