Patents by Inventor Henry Ka-Wah Hui

Henry Ka-Wah Hui 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).

  • Pressure-equalizing cap
    Patent number: 5868667
    Abstract: A device for use with an endoscope is provided. The device allows the equalization of the pressure between an internal space of the endoscope and an environment outside the endoscope. The device includes a housing defining an opening, a gas-transmissive removal zone in the opening and at least one hydrophobic breathable membrane between the gas-transmissive removal zone and the environment. The housing of the device is adapted to receive a port that is connected to an internal space of the endoscope. The gas-transmissive removal zone includes a desiccant material and a material which removes an antimicrobial agent.
    Type: Grant
    Filed: March 27, 1998
    Date of Patent: February 9, 1999
    Assignee: Ethicon, Inc.
    Inventors: Szu-Min Lin, Paul Taylor Jacobs, Henry Ka-Wah Hui, Les Authur Feldman