Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5143787 | Method of coating a carbon coated magnetic recording medium surface with a fluoropolymer lubricant | Duncan W. Frew | 1992-09-01 |
| 5037710 | Anti-spin-off coating for disc records | Duncan W. Frew | 1991-08-06 |
| 4797303 | Surface lubricants for disc record | Duncan W. Frew | 1989-01-10 |