Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5116882 | Process for making copolymers of vinyl aromatic monomers and vinyl phosphonic acid derivatives and foamed articles therefrom | Roger A. Grey, Diandre Armstead | 1992-05-26 |
| 5109033 | Vinyl aromatic monomer/vinyl phosphonate copolymer compositions and foamed articles derived therefrom | Roger A. Grey, Diandre Armstead | 1992-04-28 |