Patents by Inventor Petrus Haring

Petrus Haring 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).

  • Use of diketone precursors in food products
    Patent number: 4889736
    Abstract: The present invention is concerned with a flavor concentrate containing a precursor of biacetyl, which concentrate is characterized in that it contains 0.1-99 wt. % precursor compound(s) having the following structural formula: ##STR1## in which X is ##STR2## and in which R.sub.1, R.sub.2, R.sub.5 and R.sub.6 can differ from each other or can be identical and consist of a methyl or ethyl group.It has been found that the present precursor compounds release biacetyl upon heating. By using the present precursor compounds in food products problems attached to the use of very volatile diketones in food products may be overcome.
    Type: Grant
    Filed: May 10, 1988
    Date of Patent: December 26, 1989
    Assignee: Lever Brothers Company
    Inventors: Tamme S. M. Doornbos, Petrus Haring, Arnoldus Van Der Heijden