Patents by Inventor David Timothy Ryan

David Timothy Ryan 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).

  • Kayak with adjustable cockpit walls
    Patent number: 6871611
    Abstract: In a narrow keeled boat with adjustable walls (10 & 11) and floatation devices 12 & 13) that expand outward to allow for more room in the cockpit and increased stability when needed.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: March 29, 2005
    Inventors: Peter James Tormey, David Timothy Ryan