Patents by Inventor Lorenz Farnlettner

Lorenz Farnlettner 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 continuous preparation of glyoxylic acid
    Patent number: 5068417
    Abstract: A process for continuous preparation of a concentrated aqueous solution of glyoxylic acid by hydrolysis of glyoxylic acid ester hemiacetals, wherein glyoxylic acid ester hemiacetals are treated with steam in countercurrent in a reactor cascade.
    Type: Grant
    Filed: May 25, 1990
    Date of Patent: November 26, 1991
    Assignee: Chemie Linz Gesellschaft m.b.H.
    Inventors: Alexander Sajtos, Engelbert Kloimstein, Karl Hollinger, Lorenz Farnlettner