Patents by Inventor David Alexander James Sinclair

David Alexander James Sinclair 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).

  • OFFSHORE LIFTING OPERATIONS
    Publication number: 20110253661
    Abstract: An offshore, deep-water crane including a support structure, a lifting arm secured to the support structure and extending therefrom, and at least one lifting rope extending from the support structure towards an end of the lifting arm remote from the support structure is disclosed. The lifting rope has a specific gravity less than 3 and a traction winch for moving the at least one lifting rope from the support structure along the arm and vice versa.
    Type: Application
    Filed: October 22, 2009
    Publication date: October 20, 2011
    Inventors: Stuart Neil Smith, David Alexander James Sinclair