Patents Examined by Robert W. Ramsher
  • Preparation of alkyl cyanoacetates
    Patent number: 5756807
    Abstract: A process for preparing alkyl cyanoacetates of the general formula I ##STR1## where R is an n-valent aliphatic radical which has 6 to 20 carbon atoms and whose carbon framework can be interrupted by one to three oxygen atoms in ether functionality, and n is a number from 1 to 6, by reacting cyanoacetic acid in aqueous medium with an alcohol R(OH).sub.n, where the esterification is carried out in the presence of an inert entrainer and, during the reaction, water and entrainer are distilled out.
    Type: Grant
    Filed: October 21, 1996
    Date of Patent: May 26, 1998
    Assignee: BASF Aktiengesellschaft
    Inventors: Clemens Grund, Martin Holderbaum, Helmut Reichelt, Stefan Beckmann
  • Bicyclic pyrazolidinones, compositions and use
    Patent number: 4902707
    Abstract: Bicyclic pyrazolidinones which have antimicrobial and/or herbicidal properties are discussed. The use of these compounds in pharmaceutical compositions, herbicidal compositions, and methods for treating bacterial infections and controlling undesired plants is set forth.
    Type: Grant
    Filed: April 30, 1985
    Date of Patent: February 20, 1990
    Assignee: Eli Lilly and Company
    Inventors: Louis N. Jungheim, Sandra K. Sigmund