Patents by Inventor Hiltrud E. Woziwodzki

Hiltrud E. Woziwodzki 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).

  • Separation of the isomers of tocopherol by liquid/solid chromatography
    Patent number: 4122094
    Abstract: Methods of separating the alpha-, beta-, gamma-, and delta-tocopherol isomers from mixtures containing these isomers by liquid/solid chromatography techniques using a liquid phase comprising chloroform substantially free of ethanol are disclosed. These methods are particularly suitable for the quantitative determination of these isomers in vegetable oils and in margarines, and for the isolation of substantially pure isomeric forms from naturally occurring mixtures and from the by-products of crude edible oil refinement.
    Type: Grant
    Filed: May 13, 1977
    Date of Patent: October 24, 1978
    Assignee: Lever Brothers Company
    Inventor: Hiltrud E. Woziwodzki