Patents by Inventor Shin-Yan Wang

Shin-Yan Wang 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).

  • Automatic and manual toilet flushing device
    Publication number: 20090217446
    Abstract: A toilet flushing device comprises a valve assembly, an automatic control device and an manual control device. The automatic control device has a control circuit and causes flushing of the toilet upon an external signal. The manual control device allows manual flushing of the toilet. Thus bot automatic and manual flushing of the toilet are possible. A scent box provides disinfection and good odor.
    Type: Application
    Filed: March 3, 2008
    Publication date: September 3, 2009
    Inventor: Shin-Yan Wang