Patents by Inventor Ivar Ugi

Ivar Ugi 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).

  • Isocyanoalkylcarbonic acid derivatives, the reaction thereof in isocyanide multicomponent reactions to form sec-amido-alkylcarbonic acid derivatives, and those sec-amidoalkyl-carbonic acid derivatives
    Patent number: 6509463
    Abstract: The present invention relates to compounds of the general formula I wherein A is a group of the formula and Z is an O or S atom, to the further processing thereof to form novel sec-amidoalkylcarbonic acid derivatives and to those sec-amidoalkylcarbonic acid derivatives.
    Type: Grant
    Filed: August 2, 2000
    Date of Patent: January 21, 2003
    Assignee: Ugichem GmbH
    Inventors: Ivar Ugi, Holger Bock, Thomas Lindhorst
  • Isocyanoalkyl carbonic acid derivatives, their conversion into secondary amidoalkyl carbonic acid derivatives by isocyanide-multicomponent reactions, as well as these secondary amidoalkyl carbonic acid derivatives
    Patent number: 6147240
    Abstract: The present invention relates to compounds of the general formula I ##STR1## wherein A is a group of the formula ##STR2## and Z is an O or S atom, to the further processing thereof to form novel sec-amidoalkylcarbonic acid derivatives and to those sec-amidoalkylcarbonic acid derivatives.
    Type: Grant
    Filed: April 5, 1999
    Date of Patent: November 14, 2000
    Assignee: Ugichem GmbH
    Inventors: Ivar Ugi, Holger Bock, Thomas Lindhorst
  • Protection of functional groups during reaction and their subsequent restoration
    Patent number: 4111933
    Abstract: In the process for preparing an organic compound of the formulaA' -- Xin whichX is an amino group, a hydroxyl group or a carboxyl group, andA' is the remainder of the molecule, from an organic compound of the formulaA -- Xin whichA is the remainder of the molecule which can undergo reaction to form A', by converting A -- X into a compound of the formulaA -- Z -- COORin whichZ is --NH--, --O-- or a direct C--C bond, andR is a radical of the formula ##STR1## IN WHICH Y is a direct C--C single bond, the --CH.dbd.CH-- group or an arylene group,R.sup.1 to R.sup.4 each independently is hydrogen, halogen or an alkyl, aryl, aralkyl, alkoxycarbonyl, alkylaminocarbonyl, arylaminocarbonyl or cycloalkylaminocarbonyl radical, orR.sup.1 + r.sup.2 and R.sup.3 + R.sup.4 each independently completes a 5- or 6-membered carbocyclic ring, orR.sup.1 and R.sup.
    Type: Grant
    Filed: April 28, 1977
    Date of Patent: September 5, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Heiner Eckert, Ivar Ugi, Hans-Joachim Kabbe
  • Dithiobiuret derivatives used for repelling birds, rodents, leporine animals and ruminants
    Patent number: 3941887
    Abstract: Compositions and methods for repelling warm-blooded creatures, such as birds, rodents leporine animals and ruminants using N-(alkyl, cycloalkyl, phenoxycarbonyloxyalkyl, phenyl, alkyl-phenyl and alkyl-chloro-phenyl)-dithiobiuret derivatives.
    Type: Grant
    Filed: November 28, 1973
    Date of Patent: March 2, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gunther Hermann, Peter Hoffmann, Friedrich-Karl Rosendahl, Ivar Ugi