Patents by Inventor James Joseph Eberl

James Joseph Eberl 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 the manufacture of coated calcium sulfate whisker fibers
    Patent number: 3961105
    Abstract: A method is provided for the manufacture of coated calcium sulfate whisker fibers wherein the calcium sulfate whisker fibers are formed in an aqueous solution at about 110.degree.-150.degree.C, dryed, and preferably fired. Thereafter the resulting fibers are treated to form a protective coating on the fibers.
    Type: Grant
    Filed: July 1, 1974
    Date of Patent: June 1, 1976
    Assignee: Certain-teed Products Corporation
    Inventors: James Joseph Eberl, Edmund Thelen, Harold L. Heller