Patents by Inventor Otto Hieber

Otto Hieber 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 production of a surface layer for traffic areas and the like
    Patent number: 3941607
    Abstract: A surface layer for traffic areas such as roads and airport landing strips is produced by laying a load-carrying structure comprising chip grains of mean diameter of from 2 to 25 mm, with a mean size ratio of not more than 1:3 between the smallest and the biggest grains mainly present in the mixture and a bituminous binder comprising stiffening fillers and/or elastomers, compacting the structure and inducing a flowable mortar of high viscosity to penetrate the structure to its entire depth.
    Type: Grant
    Filed: October 31, 1973
    Date of Patent: March 2, 1976
    Assignee: Alfred Kunz & Co.
    Inventors: Albert Schuhbauer, Otto Hieber