Patents by Inventor Alexander M. Sills

Alexander M. Sills 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 extracting methylxanthines from aqueous solutions containing same
    Patent number: 4904773
    Abstract: Methylxanthines such as caffeine are removed from aqueous solution by contact with cyclodextrin. A decaffeination process using selected cyclodextrin species is particularly disclosed.
    Type: Grant
    Filed: March 9, 1987
    Date of Patent: February 27, 1990
    Assignee: Allelix Inc.
    Inventors: Ernest K. Yu, Wayne R. Bellamy, Alexander M. Sills
  • Schwanniomyces castellii strains and brewing process
    Patent number: 4676986
    Abstract: The present invention relates to amylolytic enzymes produced by strains of Schwanniomyces castellii which enzymes are relatively thermolabile under the conditions used to pasteurize beer. The present invention is also concerned with a novel strain of Schwanniomyces castellii which is a derepressed producer of alpha-amylase. Also disclosed is an improved process for the production of low carbohydrate beers and in particular, low calorie beers, from high gravity worts which improvements are facilitated through the use of culture filtrates derived from viable cultures of Schwanniomyces castellii.
    Type: Grant
    Filed: May 20, 1986
    Date of Patent: June 30, 1987
    Inventors: Alexander M. Sills, Graham G. Stewart