Patents by Inventor Walter Durckheimer

Walter Durckheimer 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: 4667028
    Abstract: Process for the preparation of cephem compounds of the formula ##STR1##
    Type: Grant
    Filed: May 4, 1984
    Date of Patent: May 19, 1987
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Wilfried Schwab, Walter Durckheimer, Reiner Kirrstetter, Rudolf Lattrell
  • Patent number: 4647556
    Abstract: The invention relates to cephem derivatives of the general formula I ##STR1## and their physiologically acceptable acid addition salts, to pharmaceutical formulations active against bacterial infections, to processes for preparing the compounds and formulations, and to the use of the compounds for combating bacterial infections.
    Type: Grant
    Filed: March 3, 1983
    Date of Patent: March 3, 1987
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Rudolf Lattrell, Reiner Kirrstetter, Wilfried Schwab, Walter Durckheimer, Gerhard Seibert
  • Patent number: 4624948
    Abstract: Anhydrous crystalline (6R,7R)-7-[(Z)-2-(2-aminothiazol-4-yl)-2-(2-carboxyprop-2-oximino)acetamid o]-3-(1-pyridiniummethyl)-3-cephem-4-carboxylate and a process for its preparation, a pharmaceutical formulation which is active against bacterial infections and contains this compound and a process for the preparation of the formulation and the use of this compound for controlling bacterial infections.
    Type: Grant
    Filed: April 16, 1984
    Date of Patent: November 25, 1986
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Walter Durckheimer
  • Patent number: 4609653
    Abstract: Crystalline cephem-acid addition salts of the formula ##STR1## and their hydrates, processes for the preparation of the acid addition salts, pharmaceutical products containing these compounds and processes for their preparation, and the use of the compounds for combating bacterial infections.
    Type: Grant
    Filed: December 27, 1983
    Date of Patent: September 2, 1986
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Walter Durckheimer, Rudolf Lattrell
  • Patent number: 4603129
    Abstract: What are disclosed are cephalosporin compounds of the formula ##STR1## pharmaceutical preparations which are active against bacterial infections and in which these cephem compounds are present, process for the preparation of the cephem compounds and of the pharmaceutical preparations, use of the cephem compounds for combating bacterial infections, and compounds used as starting materials in the synthesis of said cephem compounds.
    Type: Grant
    Filed: December 19, 1983
    Date of Patent: July 29, 1986
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Jurgen Blumbach, Walter Durckheimer, Karl Seeger
  • Patent number: 4593027
    Abstract: 3-Aryl-7-chloro-3,4-dihydroacridine-1,9(2H,10H)-dione 1-oximes and 1-hydrazone derivatives of the formula I ##STR1## and their physiologically tolerated acid addition and ammonium salts are described, as is a process for their preparation. The new compounds are chemotherapeutic agents and are active against protozoa, especially malaria plasmodia.
    Type: Grant
    Filed: October 11, 1983
    Date of Patent: June 3, 1986
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Erhardt Winklemann, Walter Durckheimer, Wolfgang Raether
  • Patent number: 4590267
    Abstract: A crystalline water soluble disodium salt of 7-.beta.-[2-(2-aminothiazol-4-yl)-2-syn-methoximinoacetamido]-3-(5-carboxy methyl-4-methyl-1,3-thiazol-2-ylthiomethyl)ceph-3-em-4-carboxylic acid (cefodizim), or an adduct or solvate thereof with water and/or an organic solvent.
    Type: Grant
    Filed: August 28, 1985
    Date of Patent: May 20, 1986
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Karl-Heinz Scheunemann, Burkhard Mencke, Jurgen Blumbach, Walter Durckheimer, Klaus Fleischmann
  • Patent number: 4454129
    Abstract: What are disclosed are cephem compounds of the formula ##STR1## useful for combating bacterial infections, and methods of making and using the same.
    Type: Grant
    Filed: April 30, 1982
    Date of Patent: June 12, 1984
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Burkhard Mencke, Eberhard Ehlers, Jurgen Blumbach, Walter Durckheimer, Karl Seeger
  • Patent number: 4399131
    Abstract: What are disclosed are cephem compounds of the formula ##STR1## in which R.sub.1 denotes hydrogen, an optionally substituted alkyl, acyl, arylsulfonyl or alkylsulfonyl group or an amino-protective group which is known from peptide chemistry, R.sub.2 denotes hydrogen or an optionally substituted alkyl, alkenyl, alkinyl, cycloalkyl, aralkyl, acyl, aryl, arylsulfonyl, alkylsulfonyl or heterocyclic group, R.sub.3 denotes hydrogen, an ester group or a cation, R.sub.4 denotes hydrogen, a lower alkoxy group or a group which can be converted to this, X denotes a SO group in the R or S configuration or a SO.sub.2 group and A denotes hydrogen, an optionally substituted alkoxy or alkenyloxy group, halogen or a group --CH.sub.2 Y, in which Y represents hydrogen, halogen or the radical of a nucleophilic compound, and in which the R.sub.
    Type: Grant
    Filed: May 5, 1980
    Date of Patent: August 16, 1983
    Assignee: Hoechst AG
    Inventors: Walter Durckheimer, Eberhard Ehlers, Hubert Seliger, Elmar Schrinner
  • Patent number: 4293550
    Abstract: Cephalosporin derivatives of the formula ##STR1## processes for their manufacture and their use for combating bacterial infections.
    Type: Grant
    Filed: December 20, 1978
    Date of Patent: October 6, 1981
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Jurgen Blumbach, Walter Durckheimer, Elmar Schrinner
  • Patent number: 4284627
    Abstract: Antimalarial compositions are disclosed containing as the active ingredient a mixture of a tetrahydroacridone of the general formula I ##STR1## in which R.sup.1 represents methyl, phenyl, p-chlorophenyl, m-chlorophenyl, p-fluorophenyl, p-trifluoromethylphenyl, o-trifluoromethylphenyl or o-chloro-p-trifluoromethylphenyl,R.sup.2 represents hydrogen or methyl, andR.sup.3 represents fluorine or chlorine,or a salt of such a compound with a physiologically compatible acid or base, with(a) 6-methoxy-.alpha.-(5-vinyl-2-quinuclidinyl)-4-quinoline-methanol (Quinine),(b) 7-chloro-4-(diethylamino-1-methyl-butylamino)-quinoline (Chloroquine),(c) .alpha.
    Type: Grant
    Filed: July 7, 1980
    Date of Patent: August 18, 1981
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Wolfgang Raether, Walter Durckheimer, Hans Seidenath
  • Patent number: 4282220
    Abstract: What is disclosed are cephalosporin compounds of the formula ##STR1## pharmaceutical preparations having an action against bacterial infections and containing such cephem compounds, a process for the manufacture of the cephem compounds and of pharmaceutical preparations containing the same, and the use of the cephem compounds to combat bacterial infections.
    Type: Grant
    Filed: May 24, 1979
    Date of Patent: August 4, 1981
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Dieter Bormann, Walter Durckheimer, Elmar Schrinner
  • Patent number: 4278793
    Abstract: Cephem derivatives of the general formula ##STR1## in which the R.sub.2 O group is in the syn-position, a process for their manufacture and pharmaceutical formulations which are active against bacterial infections and contain these compounds.
    Type: Grant
    Filed: July 21, 1980
    Date of Patent: July 14, 1981
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Walter Durckheimer, Dieter Bormann, Eberhard Ehlers, Elmar Schrinner, Rene Heymes
  • Patent number: 4260615
    Abstract: Antimalarial compositions are disclosed containing as the active ingredient a mixture of a tetrahydroacridone of the general formula I ##STR1## in which R.sup.1 represents methyl, phenyl, p-chlorophenyl, m-chlorophenyl, p-fluorophenyl, p-trifluoromethylphenyl, o-trifluoromethylphenyl or o-chloro-p-trifluoromethylphenyl,R.sup.2 represents hydrogen or methyl, andR.sup.3 represents fluorine or chlorine,or a salt of such a compound with a physiologically compatible acid or base, with(a) 6-methoxy-.alpha.-(5-vinyl-2-quinuclidinyl)-4-quinoline-methanol (Quinine),(b) 7-chloro-4-(diethylamino-1-methyl-butylamino)-quinoline (Chloroquine),(c) .alpha.
    Type: Grant
    Filed: October 26, 1978
    Date of Patent: April 7, 1981
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Wolfgang Raether, Walter Durckheimer, Hans Seidenath
  • Patent number: 3993694
    Abstract: Antibacterially-active tetracyclines, substituted at the amide group, and physiologically-tolerable salts thereof, said tetracyclines having the formula ##SPC1##Methods of making the same; pharmaceutical compositions containing the same.
    Type: Grant
    Filed: April 11, 1975
    Date of Patent: November 23, 1976
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Wolfgang Martin, Walter Durckheimer, Elmar Schrinner
  • Patent number: 3983173
    Abstract: 2-Carboxamido-substituted tetracyclines of the general formula ##SPC1##A process for their preparation and compositions containing these compounds.
    Type: Grant
    Filed: October 31, 1974
    Date of Patent: September 28, 1976
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Herbert Hartung, Walter Durckheimer, Elmar Schrinner, Hermann Gerhards
  • Patent number: 3947449
    Abstract: Tetrahydroacridones and their salts with physiologically tolerated acids and bases and process for preparing them. The compounds have a valuable chemotherapeutic action and may be used as drugs against protozoan diseases.
    Type: Grant
    Filed: July 22, 1974
    Date of Patent: March 30, 1976
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Walter Durckheimer, Wolfgang Raether, Hubert Georg Seliger