Patents by Inventor Sidney Ru

Sidney Ru 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).

  • Multi-Purpose Writing Instrument
    Publication number: 20150165814
    Abstract: The present invention is a multi-function apparatus that can include a writing instrument, stylus, and integral microfiber retractable cloth.
    Type: Application
    Filed: October 31, 2014
    Publication date: June 18, 2015
    Inventor: Sidney Ru
  • Vessel cap
    Patent number: D678714
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: March 26, 2013
    Inventor: Sidney Ru