Patents by Inventor Casper Johannes N. Rekers

Casper Johannes N. Rekers 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).

  • Semipermeable capillary having overlapped strengthening layer
    Patent number: 6186342
    Abstract: Described is a semipermeable capillary having a tubular semipermeable wall composed of a membrane-forming material (2) and a tubular strengthening layer (1). The tubular strengthening layer includes an elongated tape having mutually overlapped longitudinal edges. The tubular strengthening layer has an open cohesive structure that is embedded in the membrane-forming material whereby the mutually overlapping longitudinal edges are joined together by the membrane-forming material and a continuous phase is formed between the semipermeable wall and the strengthening layer.
    Type: Grant
    Filed: July 15, 1997
    Date of Patent: February 13, 2001
    Assignee: Stork Friesland B.V.
    Inventor: Casper Johannes N. Rekers