Patents by Inventor Elizabeth C. Cornelius

Elizabeth C. Cornelius 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).

  • Biodegradable paper-based agricultural substrate
    Patent number: 6625923
    Abstract: A substrate comprising a paper layer and at least one biodegradable polymer layer extruded thereon is provided. The paper layer may have an extruded polymer layer on each side, it may have multiple polymer layers extruded on one side, or both. Additives appropriate for the particular use of the substrate may be added to one or more of the polymer layers.
    Type: Grant
    Filed: February 15, 2001
    Date of Patent: September 30, 2003
    Assignee: International Paper Company
    Inventors: Peter F. Lee, Elizabeth C. Cornelius, Prasad S. Potnis, Christopher S. Cleveland, Gary H. Knauf
  • Biodegradable paper-based agricultural substrate
    Publication number: 20030056433
    Abstract: A substrate comprising a paper layer and at least one biodegradable polymer layer extruded thereon is provided. The paper layer may have an extruded polymer layer on each side, it may have multiple polymer layers extruded on one side, or both. Additives appropriate for the particular use of the substrate may be added to one or more of the polymer layers.
    Type: Application
    Filed: February 15, 2001
    Publication date: March 27, 2003
    Inventors: Peter F. Lee, Elizabeth C. Cornelius, Prasad S. Potnis, Christopher S. Cleveland, Gary H. Knauf