Patents by Inventor Frank Winsberg

Frank Winsberg 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 preparing aliphatic straight-chain and beta-alkyl-branched carboxylic acids
    Patent number: 7138544
    Abstract: The present invention relates to a process for preparing aliphatic straight-chain and ?-alkyl-branched carboxylic acids by catalytic oxidation of aldehydes by means of oxygen or oxygen-containing gas mixtures. Alkali metal carboxylates or alkaline earth metal carboxylates or a mixture thereof in an amount, calculated as alkali metal or alkaline earth metal, of from 1 mmol each to from 10 mmol each per mole of aldehyde used and also metals or compounds of metals of groups 5 to 11 of the Periodic Table of the Elements in amounts of not more than 5 ppm, based on aldehyde used, are present as catalyst.
    Type: Grant
    Filed: September 28, 2005
    Date of Patent: November 21, 2006
    Assignee: Celanese Chemicals Europe GmbH
    Inventors: Helmut Springer, Frank Winsberg
  • Process for preparing aliphatic straight-chain and beta-alkyl-branched carboxylic acids
    Publication number: 20060106249
    Abstract: The present invention relates to a process for preparing aliphatic straight-chain and ?-alkyl-branched carboxylic acids by catalytic oxidation of aldehydes by means of oxygen or oxygen-containing gas mixtures. Alkali metal carboxylates or alkaline earth metal carboxylates or a mixture thereof in an amount, calculated as alkali metal or alkaline earth metal, of from 1 mmol each to from 10 mmol each per mole of aldehyde used and also metals or compounds of metals of groups 5 to 11 of the Periodic Table of the Elements in amounts of not more than 5 ppm, based on aldehyde used, are present as catalyst.
    Type: Application
    Filed: September 28, 2005
    Publication date: May 18, 2006
    Inventors: Helmut Springer, Frank Winsberg