Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6372361 | Coating for paper products | Robert L. Billmers, Douglas J. Hanchett | 2002-04-16 |
| 5672699 | Process for preparation of hydrophobic starch derivatives | Robert L. Billmers | 1997-09-30 |