Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6228906 | Method for blending rubber or plastics materials | — | 2001-05-08 |
| 4657871 | Mixing polymers such as rubber | Bernard R. Matthews, Henry D. Giffin | 1987-04-14 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6228906 | Method for blending rubber or plastics materials | — | 2001-05-08 |
| 4657871 | Mixing polymers such as rubber | Bernard R. Matthews, Henry D. Giffin | 1987-04-14 |