Patents by Inventor Andre Balkany

Andre Balkany 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 the preparation of opaliform porcellanite
    Patent number: 5102837
    Abstract: The present invention provides high grade opaliform porcellanite having a purity of at least 80% active silica. The invention also provides a process for the production of a high grade opaliform porcellanite having a purity of at least 80% active silica comprising grinding and screening porcellanite rock to form granules having an average diameter of between about 0.6 and 18 mm and then subjecting said granules to wet disintegration to remove soft clays and limestone and gravitic separation to separate the lower density opaliform active silica from higher density impurities intermixed therewith.
    Type: Grant
    Filed: September 17, 1990
    Date of Patent: April 7, 1992
    Assignee: Research and Development of Natural Resources, Ltd.
    Inventors: Andre Balkany, Pnina Strongin