Patents by Inventor Joerg A. Bleeck

Joerg A. Bleeck 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 wet grinding of natural and synthetic carbonates
    Patent number: 4606503
    Abstract: The invention relates to a process for wet grinding of natural and/or synthetic carbonates in wet suspensions in which the viscosity of the mass is decreased and a favorable particle size range distribution is obtained having a small portion of very fine overground particles. The carbonates in the wet grinding are mixed with zeolites to 0.05 to 3.0% by weight based on the dry weight of the carbonates. Chemical dispersants are used to help effect the process.
    Type: Grant
    Filed: December 13, 1983
    Date of Patent: August 19, 1986
    Assignee: Columbia River Carbonates
    Inventor: Joerg A. Bleeck