Patents by Inventor Po Wen Li

Po Wen Li 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: 5716492
    Abstract: Disclosed is a tape cutter and self-adhesive label peeler which associates a tape cutter stand with an engaging arm assembly so that it may not only cut an ordinary adhesive tape but also peel self-adhesive labels off from an under layer thereof. To use the device as a self-adhesive label peeler, put a roll of such tape into the cutter stand with a length of the tape from a front end thereof pulled beyond a front stop member, push the engaging arm assembly backward to attach to the cutter stand so that the front stop member is shifted upward to be between a front shaft and a leading member. At this position, an under layer of the tape is bent down to pass beneath the leading member while the harder self-adhesive labels on the under layer are not bent and are conveniently and quickly separated from the under layer.
    Type: Grant
    Filed: November 21, 1995
    Date of Patent: February 10, 1998
    Inventor: Po Wen Li
  • Patent number: 5638603
    Abstract: Disclosed is a wrappage cutter including a holder and a cutting element disposed below and received in the holder. The cutting element includes a blade inclinedly fixed at an angle between 15 degrees and 35 degrees relative to the holder, such that when the holder is pushed forward against a paper to be cut, the paper can be easily and straight cut in a quick and safe manner.
    Type: Grant
    Filed: February 7, 1996
    Date of Patent: June 17, 1997
    Assignee: Prudential Co., Ltd.
    Inventor: Po Wen Li