Gerhard Koppenhoefer has been granted 6 US patents while listed as an inventor at Basf Se . The first was granted in 1991 and the most recent in December 1994. Gerhard Koppenhoefer ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Gerhard Koppenhoefer in Ludwigshafen, DE.
Patents per Year Patents granted per year, 1991 to 1994 Bar chart with a peak of 2 patents in 1991. peak 2 1991: 2 patents 1991 1992: 1 patents 1992 1993: 1 patents 1993 1994: 2 patents 1994
Issued Patents All Time
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Showing 1–6 of 6 patents
Patent # Title Co-Inventors Date
5371292 Preparation of 3-aminomethyl-3,5,5-trimethyl-cyclohexylamine Franz Merger , Claus-Ulrich Priester , Tom Witzel , Wolfgang Harder 1994-12-06
5288911 Preparation of .alpha.,.omega.-aminoalcohols Wolfgang Schroeder , Dieter Voges 1994-02-22
5239120 Preparation of 2-(3-aminopropyl)-cycloalkylamines Franz Merger , Claus-Ulrich Priester , Wolfgang Harder , Tom Witzel , Helmut Lermer +1 more 1993-08-24
5166443 Preparation of 2,2-disubstituted pentane-1,5-diamines Franz Merger , Claus-Ulrich Priester , Tom Witzel , Ludwig Schuster 1992-11-24
5037793 Catalyst for the hydrogenation of unsaturated aliphatic compounds Herbert Toussaint , Juergen Schossig , Heinz Graefje , Wolfgang Reiss , Roland Spahl +2 more 1991-08-06
5015788 Process for the hydrogenation of acetylenic alcohols Herbert Toussaint , Juergen Schossig , Heinz Graefje , Wolfgang Reiss , Roland Spahl +2 more 1991-05-14
