Patents by Inventor Maw-Chang Lin

Maw-Chang Lin 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).

  • Structure water filter outer shell
    Patent number: 5985143
    Abstract: A water filter outer shell having an improved sleeve and top cover. The top cover and sleeve are formed with interior and exterior conical surfaces, the lower half of the conical surface of the outer shell having exterior threads. The top cover is fastened by screwing interior and exterior threads near the conical surfaces of the top cover and outer shell to eliminate three components from the known device. The tightness and water permeation seal are thus stronger and more effective. The structure has lower production costs to improve market competition.
    Type: Grant
    Filed: September 8, 1998
    Date of Patent: November 16, 1999
    Inventor: Maw-Chang Lin