Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4824627 | Method of making a molded plastic product | Brian Harper | 1989-04-25 |
| 4797237 | Method for recycling a beverage container | Brian Harper | 1989-01-10 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4824627 | Method of making a molded plastic product | Brian Harper | 1989-04-25 |
| 4797237 | Method for recycling a beverage container | Brian Harper | 1989-01-10 |