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USPTO Patent Rankings Data through Dec 31, 2025
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Stefan Karbach — 26 Patents

Basf Se: 26 patents #453 of 13,826Top 4%
Ludwigshafen, DE: #102 of 1,722 inventorsTop 6%
Overall (All Time): #150,017 of 4,157,543Top 4%
26 Patents All Time
Stefan Karbach has been granted 26 US patents while listed as an inventor at Basf Se. The first was granted in 1986 and the most recent in May 1993. Stefan Karbach ranks #150,017 of 4,157,543 US inventors in our database (top 3.6%). Patent records list Stefan Karbach in Ludwigshafen, DE.

Patents per Year

Patents granted per year, 1986 to 1993Bar chart with a peak of 6 patents in 1990.peak 61986: 1 patents19861987: 3 patents19871988: 3 patents19881989: 2 patents19891990: 6 patents19901991: 3 patents19911992: 6 patents19921993: 2 patents1993

Issued Patents All Time

Showing 1–25 of 26 patents

Patent #TitleCo-InventorsDate
5210297 Workup of mother liquors resulting from the preparation of adipic acid Gerhard Frank, Guenter Herrmann, Gert Buerger, Jost H. Manegold, Ruediger Schmitz 1993-05-11
5194444 Azolylmethylcycloalkyloxiranes and their use as crop protection agents Rainer Seele, Thomas Kuekenhoehner, Hubert Sauter, Gisela Lorenz, Eberhard Ammermann 1993-03-16
5159117 Preparation of .alpha.,.alpha.-dialkoxy ketones Guenter Wegner, Hubert Smuda, Eckhard Hickmann, Reiner Kober, Rainer Seele +1 more 1992-10-27
5132318 Azolymethylcycloalkyloxiranes and therir use as crop protection agents Rainer Seele, Thomas Kuekenhoehner, Hubert Sauter, Gisela Lorenz, Eberhard Ammermann 1992-07-21
5122531 Vinylazoles and the use thereof for crop protection Rainer Seele, Wolfgang Rohr, Bernhard Zipperer, Lothar Rueb, Eberhard Ammermann +3 more 1992-06-16
5102899 Azolylmethyloxiranes and fungicides containing them Rainer Seele, Walter Himmele, Hubert Sauter, Eberhard Ammermann, Gisela Lorenz 1992-04-07
5098917 Substituted imidazolylmethyloxiranes and substituted imidazolypropenes their preparation and fungicides containing them Rainer Seele, Norbert Goetz, Hubert Sauter, Eberhard Ammermann, Gisela Lorenz 1992-03-24
5093046 Preparation of ethereal solutions of arylmethyl-magnesium halides Reiner Kober, Rainer Seele, Thomas Zierke, Heinz Isak, Guenter Wegner 1992-03-03
5057531 Azolylmethyloxiranes and fungicides containing these compounds Rainer Seele, Norbert Goetz, Gisela Lorenz, Eberhard Ammermann 1991-10-15
5028618 Substituted imidazolylmethyloxiranes and substituted imidazolylpropenes, their preparation and fungicides containing them Rainer Seele, Norbert Goetz, Hubert Sauter, Eberhard Ammermann, Gisela Lorenz 1991-07-02
5006152 Azolylmethylcyclopropanes and their use as crop protection agents Rainer Seele, Reiner Kober, Hubert Sauter, Eberhard Ammermann, Gisela Lorenz +2 more 1991-04-09
4963690 N-aminotriazole derivatives Rainer Seele, Reiner Kober, Matthias Zipplies, Hubert Sauter, Barbara A. Moore +4 more 1990-10-16
4940717 Fungicidal imidazolylmethyloxiranes Rainer Seele, Bernd Janssen, Reiner Kober, Eberhard Ammermann, Gisela Lorenz 1990-07-10
4937256 Thiophene compounds Reiner Kober, Joachim Leyendecker, Rainer Seele, Norbert Meyer, Karl-Otto Westphalen +2 more 1990-06-26
4920232 .alpha.,.beta.-substituted acroleins Norbert Goetz, Hans-Gert Recker 1990-04-24
4914128 Acrylates and fungicides which contain these compounds Ulrich Schirmer, Ernst-Heinrich Pommer, Eberhard Ammermann, Wolfgang Steglich, Barbara Schwalge +1 more 1990-04-03
4906652 Azolymethyloxiranes and their use as crop protection agents Bernd Janssen, Norbert Meyer, Hubert Sauter, Eberhard Ammermann, Ernst-Heinrich Pommer 1990-03-06
4822908 Substituted acrylates and fungicides containing same Ulrich Schirmer, Costin Rentzea, Ernst-Heinrich Pommer, Eberhard Ammermann, Wolfgang Steglich +2 more 1989-04-18
4804785 Alpha, beta-substituted acroleins Bernd Janssen, Hans-Gert Recker, Marco Thyes 1989-02-14
4782177 Acrylic acid derivatives and fungicides which contain these compounds Ulrich Schirmer, Ernst-Heinrich Pommer, Eberhard Ammermann, Wolfgang Steglich, Barbara Schwalge +1 more 1988-11-01
4723042 Alpha,beta-substituted acroleins and their preparation Bernd Janssen, Hans-Gert Recker, Marco Thyes 1988-02-02
4723034 Stilbene derivatives, and fungicides which contain these compounds Ulrich Schirmer, Ernst-Heinrich Pommer, Eberhard Ammermann, Wolfgang Steglich, Barbara Schwalge +1 more 1988-02-02
4709078 Acrylates, and fungicides which contain these compounds Ulrich Schirmer, Ernst-Heinrich Pommer, Eberhard Ammermann, Wolfgang Steglich, Barbara Schwalge +1 more 1987-11-24
4678798 N-(azolylcarbamyl)-hydroxylamines and fungicides containing these compounds Costin Rentzea, Hubert Sauter, Wolfgang Will, Eberhard Ammermann, Ernst-Heinrich Pommer 1987-07-07
4652580 Application of azolylmethyloxiranes for the treatment of viral diseases Bernd Janssen, Norbert Meyer, Gerhard Laur 1987-03-24