Patents by Inventor Liang-Chin Tseng

Liang-Chin Tseng 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).

  • Eyeglasses with a replaceable sunshade
    Patent number: 5619287
    Abstract: A pair of eyeglasses with a sunshade comprising a sunshade releasably combined with a frame and a plate glass also collapsibly combined with the frame, the sunshade and the plate glass being replaceable to be combined with the frame according to the taste of a user.
    Type: Grant
    Filed: January 23, 1995
    Date of Patent: April 8, 1997
    Inventor: Liang-Chin Tseng
  • Eyeglasses with lenses replaceable
    Patent number: 5526069
    Abstract: Eyeglasses with lenses replaceable comprising a lens frame and a plurality of pairs of lenses to be selectably used and fitted in two lens holes of the lens frame by a user with easiness without need of any tools, each lens hole and each lens having the same shape, each lens hole having a circumferential wedge-shaped ridge to engage exactly with a circumferential wedge-shaped groove of each lens, each lens hole and each lens having a wedge-shape position portion and a nearly-round fitting portion to correspond with each other so that each lens may fit in each lens hole with firm stability.
    Type: Grant
    Filed: November 28, 1994
    Date of Patent: June 11, 1996
    Inventor: Liang-Chin Tseng
  • Spectacles
    Patent number: D364886
    Type: Grant
    Filed: March 10, 1995
    Date of Patent: December 5, 1995
    Assignee: Kuan Hung Spectacles Co., Ltd.
    Inventor: Liang-Chin Tseng
  • Eyeglass frame
    Patent number: D365590
    Type: Grant
    Filed: October 3, 1994
    Date of Patent: December 26, 1995
    Inventor: Liang-Chin Tseng
  • Spectable frame front
    Patent number: D371798
    Type: Grant
    Filed: October 3, 1994
    Date of Patent: July 16, 1996
    Inventor: Liang-Chin Tseng