Patents by Inventor Georg-Wilhelm Ludwig

Georg-Wilhelm Ludwig 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).

  • Water-based, solvent- and emulsifier-free microbicidal active compound combination
    Patent number: 6372771
    Abstract: New microbicidal, optionally solvent- and emulsifier-free microbicidal active compound combinations and agents comprising known azole fungicides and quaternary ammonium compounds and their use in the preservation of materials.
    Type: Grant
    Filed: August 6, 1999
    Date of Patent: April 16, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Georg-Wilhelm Ludwig, Otto Exner, Karl-Heinz Büchel, Graham Holmwood
  • Water-based, solvent- and emulsifier-free microbicidal active compound combination
    Publication number: 20020013355
    Abstract: New microbicidal, optionally solvent- and emulsifier-free microbicidal active compound combinations and agents comprising known azole fungicides and quaternary ammonium compounds and their use in the preservation of materials.
    Type: Application
    Filed: July 10, 2001
    Publication date: January 31, 2002
    Inventors: Georg-Wilhelm Ludwig, Otto Exner, Karl-Heinz Buchel, Graham Holmwood
  • Water-based, solvent- and emulsifier-free microbicidal active compound combination
    Patent number: 5990143
    Abstract: New microbicidal, optionally solvent- and emulsifier-free microbicidal active compound combinations and agents comprising known azole fungicides and quaternary ammonium compounds and their use in the preservation of materials.
    Type: Grant
    Filed: April 4, 1995
    Date of Patent: November 23, 1999
    Assignee: Bayer Aktiengesellschaft
    Inventors: Georg-Wilhelm Ludwig, Otto Exner, Karl-Heinz Buchel, Graham Holmwood
  • 1-thiocarbamoyl-5-hydroxy-pyrazoles as microbicides
    Patent number: 5502069
    Abstract: 1-Thiocarbamoyl-5-hydroxy-pyrazoles have a microbicidal action and are therefore suitable for use for the preservation of materials. Since, in contrast to other microbicides, they are ecologically acceptable and do not discolour plastics, paints and paint films, they are particularly recommended for use in these substances.
    Type: Grant
    Filed: September 7, 1994
    Date of Patent: March 26, 1996
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Sasse, Peter Wachtler, Georg-Wilhelm Ludwig, Wilfried Paulus
  • 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
  • Cyanoalkene derivatives, process for their preparation, and their use as microbicide for the protection of materials
    Patent number: 5354777
    Abstract: New cyanoalkene derivatives of the formula (I) ##STR1## are described, in which R and R.sup.1 have the meaning given in the description, and a process for their preparation.The new cyanoalkene derivatives are used for combating microorganisms for the protection of industrial materials.
    Type: Grant
    Filed: February 23, 1993
    Date of Patent: October 11, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Peter Wachtler, Wilfried Paulus, Georg-Wilhelm Ludwig
  • Microbicidal agents
    Patent number: 5332765
    Abstract: There were described microbicidal agents for the protection of aqueous functional fluids which contain, as active substances, a combination of at least one iodopropargyl derivative and benzyl alcohol mono(poly)hemiformal.
    Type: Grant
    Filed: December 9, 1992
    Date of Patent: July 26, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Jens-Peter Lorentzen, Georg-Wilhelm Ludwig, Wilfried Paulus
  • 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
  • 1-[pyri(mi)dyl-(2)]-5-hydroxy-pyrazole microbicides
    Patent number: 5292744
    Abstract: The invention relates to the use of certain 1-[2-pyri(mi)dyl]-5-hydroxy-pyrazoles which are characterized by formula (I) given in the description, as microbicides for the protection of industrial materials, and to certain novel 1-[2-pyri(mi)dyl]-5-hydroxy-pyrazoles which are characterised by formula (II) given in the description.
    Type: Grant
    Filed: August 12, 1992
    Date of Patent: March 8, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Sasse, Michael Schwamborn, Peter Wachtler, Monika Frie, Georg-Wilhelm Ludwig, Wilfried Paulus, Hans-Georg Schmitt
  • Benzothiophene-2-carboxamide S,S-dioxides and use
    Patent number: 5244893
    Abstract: New compounds of the formula (I) ##STR1## in which R.sup.1 -R.sup.6 have the meanings given in the description, their preparation and use in plant protection, the protection of materials and in the field of human and veterinary medicine.Formula (I) gives a definition of the compounds which can be prepared by analogous processes, for example from suitable benzothiophene derivatives by oxidation.
    Type: Grant
    Filed: April 29, 1992
    Date of Patent: September 14, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Ludwig Elbe, Dieter Berg, Heinz-Wilhelm Dehne, Stefan Dutzmann, Georg-Wilhelm Ludwig, Manfred Plempel
  • 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
  • 1-[pyri(mi)dyl-(2)]-hydroxy-pyrazole microbicides
    Patent number: 5175176
    Abstract: The invention relates to the use of certain 1-[2-pyri(mi)dyl]-5-hydroxy-pyrazoles which are characterized by formula (I) given in the description, as microbicides for the protection of industrial materials, and to certain novel 1-[2-pyri(mi)dyl]-5-hydroxy-pyrazoles which are characterized by formula (II) given in the description.
    Type: Grant
    Filed: July 17, 1991
    Date of Patent: December 29, 1992
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Sasse, Michael Schwamborn, Peter Wachtler, Monika Frie, Georg-Wilhelm Ludwig, Wilfried Paulus, Hans-Georg Schmitt