Patents by Inventor Jeffrey A. Hultberg

Jeffrey A. Hultberg 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).

  • Guide for laying glass blocks
    Patent number: 4793104
    Abstract: A one-piece guide adapted to be inserted into mortar, between recessed surfaces presented by opposing faces of adjacent glass blocks, to space and align them with respect in each other in the formation of a masonry structure. The guide comprises a relatively thin frame including longitudinal and transverse arms having joined to their free ends bodies that are spaced transversely from said each other a distance only slightly less than the width of said recessed face surfaces.
    Type: Grant
    Filed: June 15, 1988
    Date of Patent: December 27, 1988
    Assignee: Delberg, Inc.
    Inventors: Jeffrey A. Hultberg, Richard A. Riedel