Patents by Inventor Wolfgang Gau

Wolfgang Gau 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).

  • Patent number: 6518296
    Abstract: The invention relates to novel substituted 3-thiocarbamoylpyrazoles of general formula (I), wherein m, n, R1, R2, R3 and Ar have the meanings cited in the description. The invention further relates to methods for the production and use thereof as pesticides.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: February 11, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Bernd Alig, Albrecht Marhold, Jörn Stölting, Wolfgang Gau, Christoph Erdelen, Andreas Turberg, Norbert Mencke, Olaf Hansen
  • Patent number: 6384186
    Abstract: The present invention relates to a novel organochemical compound, referred to as omphalotin for short, a process for its preparation by an essentially microbiological route and its use as microbicide and pesticide, preferably for controlling animal pests, harmful fungi and bacteria.
    Type: Grant
    Filed: May 29, 1998
    Date of Patent: May 7, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Heidrun Anke, Winfried Etzel, Wolfgang Gau, Rüdiger Hain, Michael Kilian, Anke Mayer, Olov Sterner
  • Publication number: 20010008634
    Abstract: The present invention relates to a novel organochemical compound, referred to as omphalotin for short, a process for its preparation by an essentially microbiological route and its use as microbicide and pesticide, preferably for controlling animal pests, harmful fungi and bacteria.
    Type: Application
    Filed: May 29, 1998
    Publication date: July 19, 2001
    Inventors: HEIDRUN ANKE, WINFRIED ETZEL, WOLFGANG GAU, RUDIGER HAIN, MICHAEL KILIAN, ANKE MAYER, OLOV STERNER
  • Patent number: 5686392
    Abstract: The herbicidally active substituted N-carbamoyl-tetrazolinones of the formula (I) ##STR1## in which R.sup.1 represents, inter alia, an (optionally substituted) phenyl radical,R.sup.2 represents, inter alia, an alkyl radical, andR.sup.3 represents, inter alia, a cycloalkyl radical,are obtained in very good yields and at high purity--i.e. free from the isomeric O-carbamoyloxytetrazoles (Ia)--by reacting tetrazolinones of the formula (II) with carbamoyl halides of the formula (III) (X=halogen) ##STR2## in the presence of an acid acceptor and in the presence of a diluent, at temperatures of between 0.degree. C. and 200.degree. C., and either isomerizing the O-carbamoylation product of the formula (Ia), which is formed under these circumstances as a byproduct, into the desired product of the formula (I) by heating, or else converting it by hydrolysis or alcoholysis into water-soluble, and thus readily separable, components (variable (a)).
    Type: Grant
    Filed: February 1, 1996
    Date of Patent: November 11, 1997
    Assignee: Bayer Aktiengesellschaft
    Inventors: Uwe Stelzer, Wolfgang Gau, Karl-Julius Reubke
  • Patent number: 4585782
    Abstract: The invention relates to antimycotic compositions comprising (1) an antimycotic effective amount of an azole derivative having antimycotic activity, said azole derivative being in the form of particles less than 4.mu. in size, (2) an acid and/or a buffer system consisting of an organic acid and a salt thereof to provide a pH of 3 to 4 or less in aqueous solution and (3) an inert pharmaceutical carrier. Also included in the invention are methods for the short term treatment of vaginal infections utilizing the compositions of the invention.
    Type: Grant
    Filed: February 21, 1984
    Date of Patent: April 29, 1986
    Assignee: Bayer Aktiengesellschaft
    Inventors: Manfred Plempel, Manfred Bucheler, Wolfgang Gau, Erik Regel, Karl H. Buchel, Hans-Jurgen Ploschke
  • Patent number: 4562274
    Abstract: Polyglycidyl compounds are prepared by reacting certain polyallyl compounds with a percarboxylic acid containing 3 or 4 C atoms, subsequently removing, by distillation, the carboxylic acid formed from the percarboxylic acid, then separating the remaining mixture by simultaneous extraction with a lipophilic and a hydrophilic phase, subsequently working up the laden lipophilic phase and the laden hydrophilic phase separately in a manner which is known per se, and obtaining the polyglycidyl compound as the residue from working up of the laden hydrophilic phase.
    Type: Grant
    Filed: December 12, 1983
    Date of Patent: December 31, 1985
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gebhard Rauleder, Helmut Waldmann, Ludwig Bottenbruch, Hans-Joachim Traenckner, Wolfgang Gau
  • Patent number: 4450297
    Abstract: A process for the preparation of o-nitrobenzaldehyde, comprising converting to the corresponding acetals a mixture of nitrated benzaldehyde which contains about 10 to 30% of o-nitrobenzaldehyde and about 70 to 90% of m-nitrobenzaldehyde, removing the o-nitrobenzaldehyde acetal by distillation, and then converting the o-nitrobenzaldehyde acetal to o-nitrobenzaldehyde.
    Type: Grant
    Filed: March 17, 1983
    Date of Patent: May 22, 1984
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Preiss, Wolfgang Gau, Horst Behre
  • Patent number: 4380625
    Abstract: The invention relates to an improved process for the isolation and purification of aminoglycoside antibiotics of Formula (I) as defined herein combining selective lipophilization of the compound of Formula (I) in the crude product obtained by fermentation with controlled liquid/liquid extraction.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: April 19, 1983
    Assignee: Bayer Aktiengesellschaft
    Inventors: Peter Stadler, Wolfgang Koebernick, Samir Samaan, Wolfgang Gau
  • Patent number: 4264591
    Abstract: The invention relates to the provision of an antimicrobial antibiotic obtained by culturing Actinoplanes strain ATCC 31440 under aerobic conditions in the presence of sources of carbon and nitrogen and in the presence of trace amounts of minerals. In addition to their use as antimicrobials, the antibiotics of the invention can be used for improving the growth and feed utilization in animals.
    Type: Grant
    Filed: October 18, 1979
    Date of Patent: April 28, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Bauer, Wolfgang Gau, Wilfried Kaufmann, Jorg Pfitzner, Martin Scheer, Theo Schroder
  • Patent number: 4233439
    Abstract: Glucopyranosido-1,6-mannitol, represented by the formula: ##STR1## and a process for its preparation are provided. The glucopyranosido-1,6-mannitol is obtained by catalytically hydrogenating neutral aqueous solutions of isomaltulose and cooling the hydrogenated solution.In a second embodiment of the invention the use of the glucopyranosido-1,6-mannitol as a sugar substitute, sweetener for food or beverages, and sweetened food composition is provided.
    Type: Grant
    Filed: March 16, 1979
    Date of Patent: November 11, 1980
    Assignee: Suddeutsche Zucker-Aktiengesellschaft
    Inventors: Hubert Schiweck, Georg Steinle, Lutz Muller, Wolfgang Gau, Mohammad Munir
  • Patent number: 4173645
    Abstract: The present invention provides, as compounds, the substituted 4,5-dihydroxy-imidazolidine-2-thiones of the general formula ##STR1## in which R.sup.1, R.sup.2 and R.sup.3, which are selected independently of one another each represent hydrogen, optionally substituted alkyl, optionally substituted alkoxy or halogen andR.sup.4 represents optionally substituted alkyl, cycloalkyl or alkenyl.It has been found that the compounds of this invention have a powerful ectoparasiticidal action, in particular against acarids.
    Type: Grant
    Filed: December 8, 1977
    Date of Patent: November 6, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Edgar Enders, Volker Ebbighausen, Wolfgang Gau, Christian Wunsche, Wilhelm Stendel
  • Patent number: 4117173
    Abstract: Glucopyranosido-1,6-mannitol, represented by the formula: ##STR1## and a process for its preparation are provided. The glucopyranosido-1,6-mannitol is obtained by catalytically hydrogenating neutral aqueous solutions of isomaltulose and cooling the hydrogenated solution.In a second embodiment of the invention the use of the glucopyranosido-1,6-mannitol as a sugar substitute, sweetener for food or beverages, and sweetened food composition is provided.
    Type: Grant
    Filed: May 3, 1976
    Date of Patent: September 26, 1978
    Assignee: Suddeutsche Zucker-Aktiengesellschaft
    Inventors: Hubert Schiweck, Georg Steinle, Lutz Muller, Wolfgang Gau, Mohammad Munir