Patents by Inventor Arie J. Korteweg

Arie J. Korteweg 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: 5213395
    Abstract: An adjustable seating assembly made up of a seating or load-bearing support (2), a back-rest (3), head-rest (5), arm-rest members (4, 4A) and a ground-engaging or support structure (1), all interconnected in such a manner as to allow for selective adjustment of each member in a progressive manner whereby to have the assembly capable of adopting a variety of different in-use configurations so as to satisfy different requirements of users thereof. A foot-rest is also included which is adjustable both angularly (tiltably) and vertically relative to the ground or the like surface.
    Type: Grant
    Filed: May 10, 1991
    Date of Patent: May 25, 1993
    Inventors: Arie J. Korteweg, Robin Birchall