Patents by Inventor Yaoqui Joe Liu

Yaoqui Joe Liu 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).

  • Multilayered polymer films with recyclable or recycled layers
    Patent number: 6569515
    Abstract: A multilayered polymer film is formed with a stack of one or more first optical layers, one or more second optical layers, and one or more non-optical layers. These optical and non-optical layers are typically made using polymer materials, such as polyesters. In one embodiment, the non-optical layers are made from a polyester having a composition which corresponds to the average molar composition of the combination of all of the first and second optical layers. Using this formulation, scrap material from the manufacture of multilayered polymer films may be used to generate the non-optical layers in subsequent films. Alternatively, the non-optical layers of a multilayered polymer film are made using scrap material from prior-manufactured multilayered polymer films with the optional addition of other polymer material which may be either new or recycled.
    Type: Grant
    Filed: January 13, 1998
    Date of Patent: May 27, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Timothy J. Hebrink, Yaoqui Joe Liu, William W. Merrill, Bruce A. Nerad
  • MULTILAYERED POLYMER FILMS WITH RECYCLABLE OR RECYCLED LAYERS
    Publication number: 20020025444
    Abstract: A multilayered polymer film is formed with a stack of one or more first optical layers, one or more second optical layers, and one or more non-optical layers. These optical and non-optical layers are typically made using polymer materials, such as polyesters. In one embodiment, the non-optical layers are made from a polyester having a composition which corresponds to the average molar composition of the combination of all of the first and second optical layers. Using this formulation, scrap material from the manufacture of multilayered polymer films may be used to generate the non-optical layers in subsequent films. Alternatively, the non-optical layers of a multilayered polymer film are made using scrap material from prior-manufactured multilayered polymer films with the optional addition of other polymer material which may be either new or recycled.
    Type: Application
    Filed: January 13, 1998
    Publication date: February 28, 2002
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: TIMOTHY J HEBRINK, YAOQUI JOE LIU, WILLIAM W MERRILL, BRUCE A NERAD