Patents by Inventor Evang Wong

Evang 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).

  • Rechargeable foot bath
    Publication number: 20070143918
    Abstract: A foot spa for treatment of feet includes a fluid reservoir for holding a fluid to cover a user's feet and heating, aeration and massage elements in the reservoir. The foot spa further includes a power supply with rechargeable batteries so the spa can be operated without plugging into an AC power supply or replacing batteries.
    Type: Application
    Filed: September 8, 2006
    Publication date: June 28, 2007
    Inventors: Michael Cafaro, Ruben Enriquez, Evang Wong