Patents by Inventor Alwin Herdlicka

Alwin Herdlicka 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).

  • Mortar composition
    Patent number: 5531546
    Abstract: For fastening anchoring means, such as anchor rods, in solid accommodating materials without expansion pressure, mortar compositions are used, which consist of a hardener and a resin. To improve the strength properties, vinyl ester urethane resin is employed, which optionally can be accelerated.
    Type: Grant
    Filed: April 19, 1995
    Date of Patent: July 2, 1996
    Assignee: Hilti Aktiengesellschaft
    Inventors: Alwin Herdlicka, Ludwig Gebauer, Gabriele Grundmann