Patents by Inventor Rudi Leendert de Jong

Rudi Leendert de Jong 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).

  • Method for determining foaming behavior of a liquid
    Patent number: 5891732
    Abstract: The invention relates to a method for determining foaming behavior of a liquid by use of a gas, which includes supplying the gas to an amount of the substantially gas-free liquid to form a foam and analyzing one or more properties of the foam, wherein the gas is supplied through a grid provided with holes having a diameter of 25 to 100 .mu.m, which holes are located at a mutual distance of 5 to 15 times the diameter of the holes.
    Type: Grant
    Filed: August 27, 1997
    Date of Patent: April 6, 1999
    Assignee: Heineken Technical Services B.V.
    Inventors: Albertus Prins, Rudi Leendert de Jong