Patents by Inventor Ernst Schulze

Ernst Schulze 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).

  • Sulfur-containing 6-ketoprostaglandins
    Patent number: 4680288
    Abstract: Sulfur-containing 6-ketoprostaglandins of the formula I ##STR1## in which D is a bond, alkylene having 1-3 C atoms, cis-alkenylene having 2-5 C atoms or alkinylene having 2-5 C atoms,R.sup.1 is H, alkyl having 1-4 C atoms, aryl having 6-12 C atoms or --C.sub.6 H.sub.4 NHCOC.sub.6 H.sub.5,R.sup.2 is alkyl having 1-7 C atoms, alkyl having 1-7 C atoms which is substituted by halogen, cycloalkyl having 5-6 C atoms, cycloalkyl having 5-6 C atoms which is substituted by alkyl having 1-4 C atoms, phenyl, phenyl which is substituted by F, Cl, Br, alkyl having 1-4 C atoms, OH, OCH.sub.3 or CF.sub.3, pyridyl, naphthyl, thienyl or, if D is alkylene having 1-3 C atoms, also is alkoxy having 1-4 C atoms, alkylthio having 1-4 C atoms, phenoxy or phenoxy which is substituted by F, Cl, Br, alkyl having 1-4 C atoms, OH, OCH.sub.3 or CF.sub.3,R.sup.3 and R.sup.
    Type: Grant
    Filed: January 18, 1985
    Date of Patent: July 14, 1987
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Klaus Irmscher, Hans-Eckart Radunz, Ernst Schulze, Bernhard Riefling
  • Benzothiazole derivatives and pharmaceutical formulations containing them
    Patent number: 4294839
    Abstract: Benzothiazole derivatives of the formula I ##STR1## wherein R.sup.1 is H or CH.sub.3 ; R.sup.2 is phenyl, tolyl, xylyl or pyridyl; R.sup.3 is OH, alkoxy of 1-4 C atoms or -NHCH.sub.2 CH.sub.2 OH; and R.sup.4 is H, Cl, Br, OH or alkoxy of 1-4 C atoms,and physiologically acceptable salts thereof, have valuable pharmacological properties.
    Type: Grant
    Filed: December 12, 1980
    Date of Patent: October 13, 1981
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Thomas Doll, Erich Schacht, Hans-Eckart Radunz, Ernst Schulze
  • Amino derivatives of 6-phenylpyrazolo[3,4-b]pyridines
    Patent number: 4115394
    Abstract: New amino derivatives of 6-phenylpyrazolo[3,4-b]-pyridines have the general formula ##STR1## They are useful as anti-inflammatory and diuretic agents. In addition this type of compound increases the intra-cellular concentration of adenosine-3',5'-cyclic monophosphate.
    Type: Grant
    Filed: May 6, 1974
    Date of Patent: September 19, 1978
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Hans Hoehn, Ernst Schulze
  • Pyrazolo[3',4'-2,3]pyrido[4,5-e]b-benzo-1,5-diazepinones
    Patent number: 4012373
    Abstract: The new pyrazolo[3',4'-2,3]pyrido[4,5-e]b-benzo-1,5-diazepinone compounds having the general formula ##STR1## are useful as central nervous system depressants and anti-inflammatory agents. These compounds also increase the intracellular concentration of adenosine-3',5'-cyclic monophosphate.
    Type: Grant
    Filed: September 22, 1972
    Date of Patent: March 15, 1977
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Theodor Denzel, Hans Hoehn, Ernst Schulze
  • 1,2,4-Triazolo (4,3-b) pyridazin-3-ones
    Patent number: 3994898
    Abstract: The new derivatives of 1,2,4-triazolo[4,3-b]pyridazin-3-ones and their salts which have the general formula ##SPC1##Wherein R.sub.1 represents hydrogen or lower alkyl, and R.sub.2 represents acyclic or cyclic amine groups,Are useful as psychotropic, anti-inflammatory and hypotensive agents.
    Type: Grant
    Filed: October 16, 1975
    Date of Patent: November 30, 1976
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Hans Hoehn, Ernst Schulze