Patents by Inventor Paul Schreck

Paul Schreck 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).

  • Sealing mat for use in civil and underground engineering for the insulation of soil against liquids
    Patent number: 6020043
    Abstract: A sealing mat is proposed for use in civil and underground engineering for the insulation of soil against liquids, especially water, having two outer layers consisting of a fibrous material, between which is placed a powder of mineral sealing material, e.g. bentonite, and the two layers are connected with each other, whereby between the two layers (1, 2) an aero-fleece is place, in which the powder (4) of mineral sealing material is stored, and the two layers (1, 2) are sewn to each other with the aero-fleece located in between.
    Type: Grant
    Filed: October 8, 1992
    Date of Patent: February 1, 2000
    Inventor: Paul Schreck