Patents by Inventor Ulrich Schroeer

Ulrich Schroeer 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).

  • Alkali metal dialkylaluminum dihydrides and solutions thereof in aromatic hydrocarbons
    Patent number: 4698437
    Abstract: Alkali metal dialkylaluminum dihydrides of the formulaM[Al R.sub.2-n R'.sub.n H.sub.2 ]and stable solutions thereof in aromatic hydrocarbons.
    Type: Grant
    Filed: April 4, 1986
    Date of Patent: October 6, 1987
    Assignee: Schering Aktiengesellschaft
    Inventors: Rolf Schrader, Ulrich Schroeer
  • Monoalkylfluorotin compounds
    Patent number: 4374778
    Abstract: What are disclosed are monoalkylfluorotin compounds of the formula ##STR1## wherein R is alkyl having 1 to 12 carbon atoms, X taken alone is fluorine or carboxylate, Y taken alone is chlorine, carboxylate, or ##STR2## or wherein X and Y, taken together, are oxygen, and methods for making said compounds from alkanestannonic acids.
    Type: Grant
    Filed: July 6, 1981
    Date of Patent: February 22, 1983
    Assignee: Schering Aktiengesellschaft
    Inventors: Hans Plum, Ulrich Schroeer
  • Bactericidal and fungicidal tin compounds
    Patent number: 4140706
    Abstract: Tri-isobutyl-tin azide, (i-Bu).sub.3 SnN.sub.3 is disclosed, as are certain bis-(azido-di-alkyl-tin)-oxides of the formula ##STR1## and a method for making them, as well as bactericidal and fungicidal agents comprising these biocidal tin compounds.
    Type: Grant
    Filed: June 26, 1978
    Date of Patent: February 20, 1979
    Assignee: Schering Aktiengesellschaft
    Inventors: Hans Plum, Ulrich Schroeer
  • Bactericidal and fungicidal tin compounds
    Patent number: 4112084
    Abstract: Tri-isobutyl-tin azide, (i-Bu).sub.3 SnN.sub.3 is disclosed, as are certain bis-(azido-di-alkyl-tin)-oxides of the formula ##STR1## and a method for making them, as well as bactericidal and fungicidal agents comprising these biocidal tin compounds.
    Type: Grant
    Filed: November 22, 1977
    Date of Patent: September 5, 1978
    Assignee: Schering Aktiengesellschaft
    Inventors: Hans Plum, Ulrich Schroeer