Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5246416 | Air separation method and apparatus for pleating a plastic film web | Michael Demura, Roger A. Novak, Raymond D. Barta | 1993-09-21 |
| 5226870 | Vacuum drum purge method and apparatus | David A. Smith | 1993-07-13 |
| 5147278 | Air separation method and apparatus for pleating a plastic film web | Michael Demura, Roger A. Novak, Raymond D. Barta | 1992-09-15 |
| 5062603 | Vacuum drum purge method and apparatus | David A. Smith | 1991-11-05 |