Patents by Inventor Wen Hu Liao

Wen Hu Liao 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).

  • Instant cold pack
    Patent number: 6438965
    Abstract: A plastic cold pack comprises a water bag and a coolant consisting of ammonium, nitrate sodium carboxyl methyl cellulose, and sodium chloride. In use, press or knead the cold pack to break the water bag. Instantly, a chemical reaction occurs as the coolant mixes with water released from the water bag. Such chemical reaction is capable of cooling a contact object at about 26° C. instantly for serving as a soothing means in an emergency.
    Type: Grant
    Filed: January 8, 2001
    Date of Patent: August 27, 2002
    Inventor: Wen Hu Liao
  • Instant cold pack
    Publication number: 20020046566
    Abstract: A plastic cold pack comprises a water bag and a coolant consisting of ammonium, sodium carboxyl methyl cellulose, and sodium chloride. In use, press or knead the cold pack to break the water bag. Instantly, a chemical reaction occurs as the coolant mixes with water released from the water bag. Such chemical reaction is capable of cooling a contact object at about 26° C. instantly for serving as a soothing means in an emergency.
    Type: Application
    Filed: January 8, 2001
    Publication date: April 25, 2002
    Inventor: Wen Hu Liao