Patents by Inventor Ian Rogers

Ian Rogers 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).

  • High index/high Abbe number composition
    Patent number: 5977276
    Abstract: A cross-linkable polymeric casting composition including an effective amount ofA: an acrylic or methacrylic monomer which provides high rigidity and low colour dispersion (High Abbe number) to the final product;B: a di- or polythio compound;C: a di- or polyvinyl monomer; and optionallyD: a polymerisable comonomer.
    Type: Grant
    Filed: November 20, 1997
    Date of Patent: November 2, 1999
    Assignee: Sola International Holdings Ltd.
    Inventors: Huan Kiak Toh, Ian Roger Bateman, David Robert Diggins, Bohdan Grzegorz Cieslinski
  • Control device for cables with seismic equipment, especially for gun cables comprising one or several gun arrays
    Patent number: 4748599
    Abstract: A device for controlling a seismic cable that is towed behind a vessel (1), so that the cable follows a path that is displaced laterally in relation to the path of the vessel, comprises a frame structure (6, 7) extending transversely to the towing direction and outwardly from the area of gun suspension from the cable having longitudinal frame members provided with intermediate transverse members extending obliquely or in a curved manner whereby the front ends of the transverse members, as seen in the towing direction, are disposed further outwards laterally than the rear ends of the transverse members. When towed, the frame will this be forced outwardly by the water flowing through the frame structure and the desired lateral displacement will be achieved.
    Type: Grant
    Filed: December 18, 1986
    Date of Patent: May 31, 1988
    Assignee: Geco A.S., Kjorbokollen N-1301
    Inventors: Einar Gjestrum, Ian Rogers