Patents by Inventor Patrick Jannson

Patrick Jannson 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).

  • MULTIPLE LAYER PIPE
    Publication number: 20100059132
    Abstract: Abrasion resistant polymer pipe and a process for the production thereof. The pipe comprises a first, abrasion resistant inner layer (1) and a second, structural layer (2), which is placed on the outer side of the inner layer. The first and the second layers comprise extrudable polymer materials and they are preferably separated by an alarm layer which indicates wear or depletion of the inner layer. The pipe is suitable for use in the mining industry and generally for conducting liquid and gaseous fluids containing abrasive particles.
    Type: Application
    Filed: January 10, 2008
    Publication date: March 11, 2010
    Applicant: OY KWH PIPE AB
    Inventors: Patrick Jannson, Charlotta Risku