Patents by Inventor Albertus A. W. Aleven

Albertus A. W. Aleven 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).

  • Puncture resistant insole for safety footwear
    Patent number: 5285583
    Abstract: A protective insole for use in safety footwear comprising a protective layer composed of plastic and including a flexible forepart portion having an insole board bonded to its bottom surface and a fabric liner bonded to its top surface during the process of molding the protective plastic layer. A fabric mesh may be embedded in the plastic layer for reinforcement. A further embodiment provides a steel forepart plate anchored to a plastic shank and heel about the region of greatest flexure.
    Type: Grant
    Filed: October 6, 1992
    Date of Patent: February 15, 1994
    Assignee: Terra Nova Shoes Ltd.
    Inventor: Albertus A. W. Aleven