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Otto Kratzer — 4 Patents

Basf Se: 4 patents #3,853 of 13,826Top 30%
Frankenthal (Pfalz), DE: #58 of 156 inventorsTop 40%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Otto Kratzer has been granted 4 US patents while listed as an inventor at Basf Se. The first was granted in 1981 and the most recent in October 2002. Otto Kratzer ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Otto Kratzer in Frankenthal (Pfalz), DE.

Patents per Year

Patents granted per year, 1981 to 2002Bar chart with a peak of 1 patents in 1981.peak 11981: 1 patents19811987: 1 patents19871991: 1 patents19912002: 1 patents2002

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6458970 Method for producing acid phthalic anhydride and an appropriate shell catalyst containing titanium-vanadium-cesium Gerhard Hefele, Walter Scheidmeir, Bernhard Ulrich 2002-10-01 $235,000
4994603 Preparation of methyl formate Franz Mueller, Wolfgang Steiner, Karl-Heinz Ross 1991-02-19
4659866 Continuous preparation of furmamide Kaspar Bott, Gerd Kaibel, Herwig Hoffmann, Rudolf Irnich 1987-04-21
4262140 Production of anhydrous or substantially anhydrous formic acid Kaspar Bott, Gerd Kaibel, Herwig Hoffmann, Rudolf Irnich 1981-04-14

Frequent Collaborators

Kaspar Bott2 shared
Herwig Hoffmann2 shared
Gerd Kaibel2 shared
Rudolf Irnich2 shared
Karl-Heinz Ross1 shared
Gerhard Hefele1 shared

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