Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5733783 | Method for sampling and determining the presence of contaminants in recyclable plastic materials | David H. Fine, Freeman W. Fraim, Stephen J. MacDonald, Alex Malaspina, Dirck vanBuren Myers | 1998-03-31 |
| 5688693 | Method and system for sampling and determining the presence of contaminants in recyclable plastic materials | David H. Fine, Freeman W. Fraim, Stephen J. MacDonald, Alex Malaspina, Dirck vanBuren Myers | 1997-11-18 |
| 5569606 | Method and system for sampling and determining the presence of contaminants in recyclable plastic materials | David H. Fine, Freeman W. Fraim, Stephen J. MacDonald, Alex Malaspina, Dirck van Buren Myers | 1996-10-29 |