Patents by Inventor Li-Wen Rau

Li-Wen Rau 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).

  • Fragrant ink for ink-jet printers
    Patent number: 6123757
    Abstract: A fragrant ink is provided. The fragrant ink comprises an alcohol component, an imaging component, a fragrant agent component, and a deionized water component. In certain embodiments, the fragrant ink further comprises an ethanol component. The imaging component includes at least one of a soluble dye or pigment materials. The fragrant agent preferably includes a phenolic compound. The fragrant ink causes the paper on which it is printed to emit a pleasant scent.
    Type: Grant
    Filed: July 28, 1998
    Date of Patent: September 26, 2000
    Assignee: Microjet Technology Co., Ltd.
    Inventors: Arnold Chang Mou Yang, Yi-Jing Leu, Ta-Wei Hsueh, Jane Hsueh, Chris Huang, Li-Wen Rau