Patents by Inventor Hugo Stange

Hugo Stange 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).

  • Anticholinergic drugs
    Patent number: 4465834
    Abstract: A class of anticholinergic drugs having the formula ##STR1## in which R.sup.1 is a carbocyclic or branched aliphatic group of 3 to 8 carbon atoms, R.sup.2 is a branched or linear aliphatic group containing 3 to 10 carbon atoms with 1 to 2 olefinic or acetylenic bonds and R.sup.3 is an alkyl or cyclic group of 4 to 12 carbon atoms containing a tertiary amino nitrogen, are described.
    Type: Grant
    Filed: September 20, 1965
    Date of Patent: August 14, 1984
    Assignee: FMC Corporation
    Inventors: Burton M. Baum, Hugo Stange
  • Cationic dyeable copolyesters
    Patent number: 4161577
    Abstract: Copolyester resins comprising the condensation polymerization product of (a) an aromatic dicarboxylic acid or its lower dialkyl ester (b) an aliphatic glycol and a minor amount of a substituted aromatic acid ester represented by the formula: ##STR1## where R is a lower alkyl radical having 1 to 4 carbon atoms and M is an alkali metal from the group consisting of sodium, potassium, and lithium.
    Type: Grant
    Filed: November 24, 1972
    Date of Patent: July 17, 1979
    Assignee: Avtex Fibers Inc.
    Inventors: John A. Price, Hugo Stange