Patents by Inventor Roman Cheng

Roman Cheng 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).

  • Electronic device with a retractable antenna assembly
    Publication number: 20040263398
    Abstract: In an electronic device, a pivot member of a cam follower unit is coupled pivotally to a retractable antenna assembly that is operable so as to move relative to a casing from a retracted position, where the antenna assembly is retracted into the casing, to an extended position, where the antenna assembly extends outwardly of the casing in a first direction. A cam groove unit is formed in the casing, and permits movement of the pivot member therealong such that the antenna assembly is able to move in the first direction from the retracted position to the extended position or in a second direction opposite to the first direction from the extended position to the retracted position. A biasing member is connected to the casing and the antenna assembly for biasing the antenna assembly in the first direction.
    Type: Application
    Filed: June 1, 2004
    Publication date: December 30, 2004
    Applicant: SANDFAR TECHNOLOGY CO., LTD.
    Inventor: Roman Cheng
  • Wireless network node device
    Patent number: D493169
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: July 20, 2004
    Assignee: Sendfar Technology Co., Ltd.
    Inventor: Roman Cheng