Patents by Inventor Helmut Kaltenegger

Helmut Kaltenegger 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: 7454813
    Abstract: A cleaning device includes a soft sponge layer, having at least one rib or bead on its surface; an intermediate layer, which is harder than the sponge layer, a cloth layer, that is bonded to the intermediate layer, opposite to the sponge layer. The layers may be bonded to one another. Bonding the soft sponge layer to a harder intermediate layer already considerable improves upon the handling achieved by the sponge with the rib. Even when the sponge is completely soaked with the cleaning agent it remains stable in shape due to its firm bonding to the harder intermediate layer. The user may grasp the hard intermediate layer of the device so that the sponge will not be compressed.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: November 25, 2008
    Inventor: Helmut Kaltenegger
  • Publication number: 20060037166
    Abstract: A cleaning device includes a soft sponge layer, having at least one rib or bead on its surface; an intermediate layer, which is harder than the sponge layer, a cloth layer, that is bonded to the intermediate layer, opposite to the sponge layer. The layers may be bonded to one another. Bonding the soft sponge layer to a harder intermediate layer already considerable improves upon the handling achieved by the sponge with the rib. Even when the sponge is completely soaked with the cleaning agent it remains stable in shape due to its firm bonding to the harder intermediate layer. The user may grasp the hard intermediate layer of the device so that the sponge will not be compressed.
    Type: Application
    Filed: September 16, 2004
    Publication date: February 23, 2006
    Inventor: Helmut Kaltenegger