Patents by Inventor Cedric Michael Lulham

Cedric Michael Lulham 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).

  • Patent number: 5658625
    Abstract: Film and sheet materials, and articles made therefrom, such as bags, pouches, trays, etc., comprise one or more layers of a thermoplastic, homogeneous alpha-olefin/vinyl aromatic copolymer, preferably an ethylene/styrene copolymer. The alpha-olefin/vinyl aromatic copolymer has properties which can can provide a desired performance characteristics such as impact resistance, printability, RF sealability, free shrink, optics, as well as many others. The homogeneous alpha-olefin/vinyl aromatic copolymer may be present in a monolayer film, either alone or in a blend, or may be included in one or more layers of a multilayer film. Also included is a multilayer thermoformable article comprising a web having a film of such alpha-olefin/vinyl aromatic copolymers therto. Finally, also included is an RF-sealable film comprising such copolymers.
    Type: Grant
    Filed: May 25, 1994
    Date of Patent: August 19, 1997
    Assignee: W.R. Grace & Co.-Conn.
    Inventors: John G. Bradfute, Blaine Clemons Childress, Marvin Havens, Cedric Michael Lulham, Ronald D. Moffitt, Martindale Nelson, Lawrence R. Norpoth, William Peyton Roberts, Gloria Garcia Toney, George Dean Wofford
  • Patent number: RE37699
    Abstract: Film and sheet materials, and articles made therefrom, such as bags, pouches, trays, etc., comprise one or more layers of a thermoplastic, homogeneous alpha-olefin/vinyl aromatic copolymer, preferably an ethylene/styrene copolymer. The alpha-olefin/vinyl aromatic copolymer has properties which can can provide a desired performance characteristics such as impact resistance, printability, RF sealability, free shrink, optics, as well as many others. The homogeneous alpha-olefin-vinyl aromatic copolymer may be present in a mono-layer film, either alone or in a blend, or may be included in one or more layers of a multilayer film. Also included is a multilayer thermoformable article comprising a web having a film of such alpha-olefin/vinyl aromatic copolymers thereto. Finally, also included is an RF-sealable film comprising such copolymers.
    Type: Grant
    Filed: July 19, 1999
    Date of Patent: May 14, 2002
    Assignee: Cryovac, Inc.
    Inventors: John G. Bradfute, Blaine Clemons Childress, Marvin Havens, Cedric Michael Lulham, Ronald D. Moffitt, Martindale Nelson, Lawrence R. Norpoth, William Peyton Roberts, Gloria Garcia Toney, George Dean Wofford