Patents by Inventor Peter J. Ives

Peter J. Ives 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).

  • Methods of producing composite foamed thermoplastic resin articles
    Patent number: 4504338
    Abstract: Aromatic polymer materials, such as polyethersulphone, polysulphone or polycarbonates in granular or porous forms with a solvent such as acetone or butanone. The resultant mixture is thereafter compressed and compounded to significantly increase its density producing a pre-form substantially free of large irregular voids. The preform is then capable of being formed in a foamed structure under heat.
    Type: Grant
    Filed: March 30, 1982
    Date of Patent: March 12, 1985
    Assignee: H. R. Smith (Technical Development) Limited
    Inventor: Peter J. Ives