Patents by Inventor Otto Exner

Otto Exner has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Microbicidal active compound combinations
    Patent number: 5385926
    Abstract: New synergistic microbicidal active compound combinations, and the use thereof, comprising an azole fungicide, such as hexaconazole, and an iodopropargyl derivative, such as IPBC, if appropriate with the addition of other active compounds.
    Type: Grant
    Filed: October 26, 1993
    Date of Patent: January 31, 1995
    Assignee: Bayer Aktiengesellschaft
    Inventors: Georg-Wilhelm Ludwig, Otto Exner, Wilfried Paulus, Karl-Heinz Buchel, Graham Holmwood
  • Microbicidal combinations of active compounds
    Patent number: 5326777
    Abstract: Microbicidal synergistic combinations of active compounds composed of known azol and benzimidazole derivatives are described, as is their use in the protection of materials.
    Type: Grant
    Filed: July 1, 1992
    Date of Patent: July 5, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Georg-Wilhelm Ludwig, Otto Exner, Hans-Georg Schmitt, Karl-Heinz Buchel, Graham Holmwood
  • Microbicidal active compound combinations
    Patent number: 5200421
    Abstract: New synergistic microbicidal active compound combinations, and the use thereof, comprising an azole fungicide, such as tebuconazole, and an iodopropargyl derivative, such as IPBC, if appropriate with the addition of other active compounds.
    Type: Grant
    Filed: April 13, 1992
    Date of Patent: April 6, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Georg-Wilhelm Ludwig, Otto Exner, Wilfried Paulus, Karl-Heinz Buchel, Graham Holmwood
  • Microbicidal formulations comprising water dispersible polymers with chemically bonded ammonium groups and fatty acid radicals
    Patent number: 5190932
    Abstract: The invention relates to the use of water-soluble polymers containing chemically bonded tertiary and/or quaternary ammonium groups as auxiliaries for formulating microbicides, the microbicide formulations prepared using these water-soluble polymers and the use of these formulations for preserving industrial materials.
    Type: Grant
    Filed: July 11, 1990
    Date of Patent: March 2, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rolf Dhein, Lothar Backer, Otto Exner, Walter Radt, Ingrid Radt, Christian Radt, Hans G. Schmitt
  • Indoline and 1,2,3,4-tetrahydroquinoline N(dicarboalkoxyvinyl) substituted derivatives
    Patent number: 4792609
    Abstract: An indoline derivative of the formula (I) ##STR1## in which R.sup.1 denotes H or C.sub.1 -C.sub.8 -alkyl;R.sup.2 and R.sup.3 are identical or different and denote C.sub.1 -C.sub.8 -alkyl;R.sup.4 -R.sup.9 are identical or different and denote H, C.sub.1 -C.sub.8 -alkyl, C.sub.5 -C.sub.6 -cycloalkyl or phenyl-C.sub.1 -C.sub.4 -alkyl, or R.sup.5 and R.sup.6 connected together to form a further C.sub.5 -C.sub.6 ring, andR.sup.10 denotes H or one or more radicals selected from the group consisting of C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 alkoxy, C.sub.5 -C.sub.6 -cycloalkyl, phenyl-C.sub.1 -C.sub.4 -alkyl and carb-C.sub.1 -C.sub.8 -alkoxy radicals, or halogen atoms. Such indoline derivative is useful as a UV absorber.
    Type: Grant
    Filed: May 21, 1986
    Date of Patent: December 20, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Thomas Scholl, Otto Exner, Peter Finkel, Hermann Perrey