Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4718981 | Bleached kraft paperboard by densification and heat treatment | Donald M. MacDonald, Michael Ring | 1988-01-12 |
| 4718982 | Densification and heat treatment of paperboard produced from SCMP and other sulfite pulps | F. Keith Hall, Donald M. MacDonald, Michael Ring | 1988-01-12 |
| 4692212 | Kraft linerboard by densification and heat treatment | Donald M. MacDonald, Michael Ring, Jasper H. Field | 1987-09-08 |
| 4512849 | Wet-laid, non-woven fabrics | Ralph E. Brandon, Charles J. Davis, Michael Ring | 1985-04-23 |
| 4200488 | Viscous dispersion for forming wet-laid, non-woven fabrics | Ralph E. Brandon, Charles J. Davis, Michael Ring | 1980-04-29 |