Patents by Inventor John Martin Kurdziel

John Martin Kurdziel 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).

  • Corrugated pipe with outer layer
    Patent number: 7484535
    Abstract: A pipe having an axially extending bore is defined by a pipe wall including a corrugated outer wall having axially adjacent annular outwardly-extending crests separated by valleys. The pipe wall also includes a non-linear outer layer having adjacent concave portions and convex portions. The concave portions are aligned with the corrugation crests of the outer wall so that the convex portion of the outer layer extends outwardly between at least two corrugation crests to provide improved resistance to deformation.
    Type: Grant
    Filed: March 14, 2005
    Date of Patent: February 3, 2009
    Assignee: Advanced Drainage Systems, Inc.
    Inventors: James B. Goddard, John Martin Kurdziel