Patents by Inventor Guenter Luettgens

Guenter Luettgens 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).

  • Patent number: 11008161
    Abstract: A transport and storage container of plastic for a filling material, having an inner container of polyethylene which is produced in the blow-molding method and which has a single-layer wall structure. The inner container is accommodated by an outer container, which is open at the top and which contains at least one layer of electrically conductive plastic. The outer lateral surface of the inner container is wrapped with an electrically dissipative flexible material, wherein at least one electrically conductive tab covers at least part of the top side of the inner container.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: May 18, 2021
    Inventors: Bodo Richter, Guenter Richter, Guenter Luettgens, Sylvia Luettgens
  • Patent number: 6331334
    Abstract: A flexible container liner, preferably for use in containers capable of dissipating electrostatic charges, with at least one liner wall which includes a single layer or multilayer wall material, preferably of polymers, such as LDPE monofilm, a co-extruded polymer film or the like, the liner wall having a layer which is electrically non-conductive, in order to meet high requirements with respect to the non-chargeability of the container and with regard to very good barrier properties against the passage of gases, is so constructed that either at least one layer of the liner wall has microrecesses extending at least over a portion of its thickness or microprotrusions, which have material of reduced thickness in their front region lying parallel to the layer, are disposed in at least one layer of the liner wall.
    Type: Grant
    Filed: October 27, 1998
    Date of Patent: December 18, 2001
    Assignee: Empac Verpackungs GmbH
    Inventors: Peter Trepte, Guenter Luettgens
  • Patent number: 5562948
    Abstract: A method for the production of an electrically conductive wall of a fabric and a film material which is provided with an insulating coating, and particularly for the production of sheets of fabric which are provided with an insulating coating and have electrically conductive tapes. In particular, in order to have provided a method with which an electrically conductive wall material with an electrically insulating coating can be prepared, for which the danger of the occurrence of brush discharges is effectively reduced, the coating is perforated after the wall material is coated.
    Type: Grant
    Filed: November 28, 1994
    Date of Patent: October 8, 1996
    Assignee: EMPAC Verpackungs GmbH & Co.
    Inventors: Peter Trepte, Guenter Luettgens