Patents by Inventor Christopher Donnison

Christopher Donnison 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).

  • Publication number: 20060144456
    Abstract: An umbilical for use in the offshore production of hydrocarbons comprising an assembly of functional elements wherein at least one functional element is a flexible hose which comprises an inner corrugated metallic tube covered by a thermoplastic sheath which thermoplastic sheath is covered by a reinforcement layer and an external cover sheath.
    Type: Application
    Filed: October 28, 2003
    Publication date: July 6, 2006
    Inventors: Christopher Donnison, Alan Dutton