Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4582859 | Process for producing an expanded seed copolymer and product therefrom | George Lein, James H. Barrett | 1986-04-15 |
| 4431785 | Ion exchange resins | William G. Paterson, Ian C. Pattison | 1984-02-14 |
| 4419245 | Copolymer process and product therefrom consisting of crosslinked seed bead swollen by styrene monomer | James H. Barrett, George Lein | 1983-12-06 |
| 4375519 | Ion exchange resins | William G. Paterson, Ian C. Pattison | 1983-03-01 |
| 4283499 | Resins | — | 1981-08-11 |
| 4246386 | Ion exchange resins | William G. Paterson, Ian C. Pattison | 1981-01-20 |