Patents by Inventor Davis Liu

Davis 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).

  • Patent number: 7617657
    Abstract: An elongate, tubular, transparent thin-film scallop bag formed with a tapered, open top edge and a closed bottom edge, and sized to hold a column of scallop medallions. The bag includes a plurality of regularly spaced perforations for eliminating trapped and excess moisture trapped during the filling of the bag with the scallops, and further formed with at least one vent hole larger than said perforations near the base of the bag to relieve back air pressure during the loading process. The bag's composition includes at least a twenty percent mixture of linear low density polyethylene (LLDPE), at least a thirty percent low density polyethylene (LDPE), and at least forty-five percent Metallocene 8C. The novel composite provides the requisite strength for a thickness that can carry the necessary perforations spacing without tearing or stretching, while providing a surface characteristic that is smooth and allows the scallops to slide easily into the bag.
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: November 17, 2009
    Assignee: Wlkay Plastics Co., Inc.
    Inventor: Davis Liu
  • Publication number: 20080101732
    Abstract: An elongate, tubular, transparent thin-film scallop bag formed with a tapered, open top edge and a closed bottom edge, and sized to hold a column of scallop medallions. The bag includes a plurality of regularly spaced perforations for eliminating trapped and excess moisture trapped during the filling of the bag with the scallops, and further formed with at least one vent hole larger than said perforations near the base of the bag to relieve back air pressure during the loading process. The bag's composition includes at least a twenty percent mixture of linear low density polyethylene (LLDPE), at least a thirty percent low density polyethylene (LDPE), and at least forty-five percent Metallocene 8C. The novel composite provides the requisite strength for a thickness that can carry the necessary perforations spacing without tearing or stretching, while providing a surface characteristic that is smooth and allows the scallops to slide easily into the bag.
    Type: Application
    Filed: October 25, 2006
    Publication date: May 1, 2008
    Inventor: Davis Liu