Patents by Inventor Heinrich Hans Laun

Heinrich Hans Laun 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: 6087279
    Abstract: A textile surface-area material used for cleaning, having a non-woven material and structures raised over the non-woven material. The structures are on both sides of the surface-area material. The structures can be full-surface or partial surfaces, and the base non-woven material can have structures, staggered on both sides, formed by structure needling. Spacings can be maintained between the structures which corresponds at least to a dimension of the structure on the opposite side. The non-woven can have at least two layers, laminated together, of a non-woven material provided on one side with structures.
    Type: Grant
    Filed: March 12, 1998
    Date of Patent: July 11, 2000
    Assignee: Firma Carl Freudenberg
    Inventor: Heinrich Hans Laun