Patents by Inventor Silas Wong

Silas Wong 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).

  • Tear drop toilet plunger
    Patent number: 9371638
    Abstract: A toilet plunger device facilitates sealed engagement of a plunger around a trap opening in a toilet bowl. The device includes a shaft having a top end and a bottom end. A cup is coupled to the bottom end of the shaft. A bottom edge of the cup has an arcuate portion and a tip positioned opposite the arcuate portion wherein the bottom edge is teardrop shaped and configured for abutting a toilet bowl surrounding a trap opening in the toilet bowl forming a seal between the cup and the toilet bowl. Thus, movement of the cup relative to the toilet bowl produces pressure through the trap opening.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: June 21, 2016
    Inventor: Silas Wong
  • Tear Drop Toilet Plunger
    Publication number: 20150218787
    Abstract: A toilet plunger device facilitates sealed engagement of a plunger around a trap opening in a toilet bowl. The device includes a shaft having a top end and a bottom end. A cup is coupled to the bottom end of the shaft. A bottom edge of the cup has an arcuate portion and a tip positioned opposite the arcuate portion wherein the bottom edge is teardrop shaped and configured for abutting a toilet bowl surrounding a trap opening in the toilet bowl forming a seal between the cup and the toilet bowl. Thus, movement of the cup relative to the toilet bowl produces pressure through the trap opening.
    Type: Application
    Filed: February 5, 2014
    Publication date: August 6, 2015
    Inventor: Silas Wong