Patents by Inventor Peter Skornia

Peter Skornia 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 recovery of 4-hydroxybenzaldehyde from reaction mixtures containing same
    Patent number: 5773664
    Abstract: A process for separating off poorly soluble by-products from reaction mixtures which are produced in the oxidation of p-cresol with oxygen or an oxygen-containing gas in methanol as solvent in the presence of alkali metal hydroxide and in the presence of metal compounds as catalyst, is characterized in that, after the oxidation, excess alkali is neutralized to the extent that a salt precipitate forms and this salt precipitate is separated off together with the poorly soluble by-products.
    Type: Grant
    Filed: January 26, 1996
    Date of Patent: June 30, 1998
    Assignee: Bayer Aktiengesellschaft
    Inventors: Albert Schnatterer, Helmut Fiege, Frank Jelitto, Peter Skornia, Karl-Heinz Theisen