Patents by Inventor Eva Mudra nee Kantor

Eva Mudra nee Kantor 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).

  • Process for the preparation of carboxylic acids and derivatives of them
    Patent number: 5414108
    Abstract: The subject matter of the invention is a process for the preparation of carboxylic acids and derivatives of them of the general formula ##STR1## wherein R means hydrogen, or a C.sub.1-4 alkyl or a (C.sub.1-5 alkoxy)carbonyl group,R.sub.1 is as defined in claim 1,R.sub.7 stands for hydrogen or a C.sub.1-7 alkyl group andR.sub.8 means hydrogen or a carboxyl group.
    Type: Grant
    Filed: August 11, 1992
    Date of Patent: May 9, 1995
    Assignee: Biogal Gyogyszergrar
    Inventors: Gyorgy Toth, Janos Balint, Klara Elek nee Herczik, Zsuzsanna Moricz nee Garai, Eva Mudra nee Kantor
  • Process for the preparation of carboxylic acids and derivatives of them
    Patent number: 5350872
    Abstract: The subject matter of the invention is a process for the preparation of carboxylic acids and derivatives of them of the general formula ##STR1## wherein R means hydrogen, or a C.sub.1-4 alkyl or a (C.sub.1-5 alkoxy)carbonyl group,R.sub.1 is as defined in claim 1,R.sub.7 stands for hydrogen or a C.sub.1-7 alkyl group andR.sub.8 means hydrogen or a carboxyl group,by reacting a 1,3-dioxane-4,6-dione derivative of the general formula ##STR2## wherein R.sub.9 stands for a C.sub.1-4 alkyl group or a phenyl group, optionally monosubstituted by halogen andR.sub.10 stands for hydrogen or a C.sub.1-5 alkyl group orR.sub.9 and R.sub.10 together form a pentamethylene group,and an aldehyde or ketone of the general formula ##STR3## in the presence of formic acid.
    Type: Grant
    Filed: October 29, 1993
    Date of Patent: September 27, 1994
    Assignee: Biogal Gyogyszergrar
    Inventors: Gyorgy Toth, Janos Balint, Klara Elek nee Herczik, Zsuzsanna Moricz nee Garai, Eva Mudra nee Kantor