Patents by Inventor Sam Siu Wai SIU

Sam Siu Wai SIU 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).

  • Check valve and fluid container comprising the same
    Patent number: 9708099
    Abstract: A check valve including a silica gel valve body, an upper valve cover, and a lower valve cover. The upper valve cover is provided with an air hole, and the lower valve cover is provided with an air inlet leg. The silica gel valve body includes an outer ring and an inner ring, a sealed valve plate is arranged inside the inner ring, and the outer ring is connected to the inner ring through elastic pieces. The outer ring is fixed between the upper valve cover and the lower valve cover. The inner ring is in a suspended state between the upper valve cover and the lower valve cover.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: July 18, 2017
    Inventor: Sam Siu Wai Siu
  • CHECK VALVE AND FLUID CONTAINER COMPRISING THE SAME
    Publication number: 20140138342
    Abstract: A check valve including a silica gel valve body, an upper valve cover, and a lower valve cover. The upper valve cover is provided with an air hole, and the lower valve cover is provided with an air inlet leg. The silica gel valve body includes an outer ring and an inner ring, a sealed valve plate is arranged inside the inner ring, and the outer ring is connected to the inner ring through elastic pieces. The outer ring is fixed between the upper valve cover and the lower valve cover. The inner ring is in a suspended state between the upper valve cover and the lower valve cover.
    Type: Application
    Filed: January 28, 2014
    Publication date: May 22, 2014
    Inventor: Sam Siu Wai SIU
  • Fluid soap container for use with dispenser unit
    Patent number: D736088
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: August 11, 2015
    Inventor: Sam Siu Wai Siu
  • Fluid soap container for use with dispenser unit
    Patent number: D805805
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: December 26, 2017
    Inventor: Sam Siu Wai Siu