Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7024840 | Bagging apparatus for use with wicketed bags | Robert F. Polkinghorne, Charles C. Tucker, Jr. | 2006-04-11 |
| 5758477 | Interface device for packaging equipment | Robert F. Polkinghorne, James S. Smith | 1998-06-02 |