Patents by Inventor Jonathan D Spear

Jonathan D Spear 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).

  • Foam vessel for cryogenic fluid storage
    Patent number: 7971744
    Abstract: Cryogenic storage and separator vessels made of polyolefin foams are disclosed, as are methods of storing and separating cryogenic fluids and fluid mixtures using these vessels. In one embodiment, the polyolefin foams may be cross-linked, closed-cell polyethylene foams with a density of from about 2 pounds per cubic foot to a density of about 4 pounds per cubic foot.
    Type: Grant
    Filed: June 19, 2006
    Date of Patent: July 5, 2011
    Inventor: Jonathan D Spear