Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5180799 | Process for polymerizing methacrylic acid ester monomers | Denis G. H. Ballard, David M. Haddleton | 1993-01-19 |
| 4798742 | Polyaromatics | Denis G. H. Ballard, Paul A. Holmes, Alan Nevin, Ian Malcolm Shirley | 1989-01-17 |