Patents by Inventor Zhicheng George Tian

Zhicheng George Tian 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).

  • Process for Making a Flexible Polyurethane Foam Having a Hardness Gradient
    Publication number: 20220227918
    Abstract: A molded flexible polyurethane foam having a hardness gradient going from soft to hard from the top to the bottom of the foam. The hardness gradient in the foam is a result of a foam elasticity gradient which arises from a polymer elasticity gradient and/or density gradient. A method for producing a flexible foam having a hardness gradient and a reactive mixture suitable for making said flexible foam is disclosed. Furthermore, the use of the flexible foams having a hardness gradient in matrasses, cushions for seating (more in particular for use in automotive seating), furniture, automotive under-carpets and dash insulators is disclosed.
    Type: Application
    Filed: June 19, 2020
    Publication date: July 21, 2022
    Inventors: Mark Joseph Brennan, Chingchung Vincent Huang, Zhicheng George Tian, Alain Germain Marc Veys, Mario Unverdorben