Patents by Inventor Allan Crescenzi

Allan Crescenzi 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).

  • Production of isomerized hop extract
    Patent number: 5015491
    Abstract: A method for the production of an isomerized hop preparation comprises mixing together hop extract with a solid alkaline or alkaline earth metal salt, and subjecting the resulting mixture to a temperature of at least 80.degree. C. for a time sufficient to effect conversion of .alpha.-acid to iso-.alpha.-acid. The method may be a stage in a process for brewing beer or the isomerized hop preparation may be further processed to produce high purity isomerized extracts.
    Type: Grant
    Filed: September 12, 1989
    Date of Patent: May 14, 1991
    Assignee: The Brewing Research Foundation
    Inventors: Keith T. Westwood, Allan Crescenzi