Patents by Inventor Arthur F. VAN DER KNAAP

Arthur F. VAN DER KNAAP 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).

  • Container made of plastic
    Patent number: 11180282
    Abstract: The invention relates to a container (1) made of plastic, comprising a rectangular base (2) and four lateral walls (3, 4). The lower face of the base (2) has a first stacking contour (20) on the outer edge of the base, and the lateral walls (3, 4) have a second stacking contour (30, 40) on the upper edge region of the lateral walls. When containers (1) are stacked one over the other, the first stacking contour (20) of an upper container (1) and the second stacking contour (30, 40) of a lower container (1) engage with each other in a centering manner.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: November 23, 2021
    Assignee: Euro Pool System International B.V.
    Inventors: Christian Roelofs, Arthur F. Van Der Knaap
  • Container Made of Plastic
    Publication number: 20190031392
    Abstract: The invention relates to a container (1) made of plastic, comprising a rectangular base (2) and four lateral walls (3, 4). The lower face of the base (2) has a first stacking contour (20) on the outer edge of the base, and the lateral walls (3, 4) have a second stacking contour (30, 40) on the upper edge region of the lateral walls. When containers (1) are stacked one over the other, the first stacking contour (20) of an upper container (1) and the second stacking contour (30, 40) of a lower container (1) engage with each other in a centering manner.
    Type: Application
    Filed: November 17, 2016
    Publication date: January 31, 2019
    Applicant: Euro Pool System International B.V.
    Inventors: Christian ROELOFS, Arthur F. VAN DER KNAAP