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Friedhelm Balkenhohl — 12 Patents

Basf Se: 12 patents #1,345 of 13,826Top 10%
Schifferstadt, DE: #69 of 580 inventorsTop 15%
Overall (All Time): #396,045 of 4,157,543Top 10%
12 Patents All Time
Friedhelm Balkenhohl has been granted 12 US patents while listed as an inventor at Basf Se. The first was granted in 1993 and the most recent in May 2001. Friedhelm Balkenhohl ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list Friedhelm Balkenhohl in Schifferstadt, DE.

Patents per Year

Patents granted per year, 1993 to 2001Bar chart with a peak of 2 patents in 1995.peak 21993: 1 patents19931995: 2 patents19951996: 2 patents19961997: 1 patents19971998: 2 patents19981999: 1 patents19992000: 1 patents20002001: 2 patents2001

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6234811 Method for producing esters of triazolopyrimidine derivatives free of enantiomers using vinylesters with lipase Stefan Koser, Nicholas J. Holman 2001-05-22 $242,000
6214608 Resolution of racemates of primary and secondary heteroatom-substitued amines by enzyme-catalyzed acylation Klaus Ditrich, Christoph Nubling 2001-04-10 $348,000
6124472 Process for preparing 3-pyrroline-2-carboxylic acid derivatives Helmut Mack, Thomas Pfeiffer, Werner Seitz, Thomas Zierke, Udo Lange 2000-09-26 $176,000
5905167 Separation of optically active amides Klaus Ditrich, Wolfgang Ladner 1999-05-18
5753471 Biotechnological perparation of alcohols, aldehydes and carboxylic acids Uwe Pressler, Bernhard Hauer, Wolfgang Ladner, Ursula Schnell, Horst Ralf Staudenmaier 1998-05-19
5728876 Resolution of the racemates of primary and secondary amines by enzyme-catalyzed acylation Bernhard Hauer, Wolfgang Ladner, Uwe Pressler, Christoph Nubling 1998-03-17
5663329 Preparation of enantiomerically pure lactams Horst Ralf Staudenmaier, Bernhard Hauer, Wolfgang Ladner, Ursula Schnell, Uwe Pressler 1997-09-02
5530143 Preparation of (6s)-6,8-dihydroxyoctanoic esters Joachim Paust 1996-06-25
5489694 Preparation of R/S-.gamma.-lipoic acid or R/S-.alpha.-lipoic acid Joachim Paust, Peter Eckes, Wolfgang Siegel, Walter Dobler, Michael Hullmann 1996-02-06
5420302 Preparation of calcium L-ascorbate 2-phosphate Klaus Kaiser, Joachim Paust 1995-05-30
5380920 Preparation of R/S-.gamma.-lipoic acid or R/S-.alpha.-lipoic acid Joachim Paust, Peter Eckes, Wolfgang Siegel, Walter Dobler, Michael Hullmann 1995-01-10
5202445 Preparation of potassium magnesium L-ascorbate 2-phosphate Walter Dobler, Hartwig Voss, Joachim Paust 1993-04-13