Patents by Inventor Gerard Hub Frans Schmets

Gerard Hub Frans Schmets 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).

  • Stabilized vinyl chloride composition
    Patent number: 5744525
    Abstract: Vinyl chloride resins are thermally stabilized by incorporating a heterocyclic compound, as represented by Compound A, disclosed herein, which when in the radical, A=S, are thiophene derivatives, when A=--NR, are pyrrolidone derivatives, and when A=O, are tetronic derivatives.
    Type: Grant
    Filed: September 3, 1996
    Date of Patent: April 28, 1998
    Assignee: Akros Chemicals
    Inventors: Heather Blue Harvey, Joseph William Burley, Gerard Hub Frans Schmets