Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4966780 | Packaging of fresh roasted coffee exhibiting improved aroma retention | Peter Hargraves, Robert S. Dirksing | 1990-10-30 |
| 4892247 | Paperboard carton with latching plastic lid | Robert S. Dirksing | 1990-01-09 |
| 4873100 | Bistable expandable bottle | Robert S. Dirksing, Richard Michael Girardot | 1989-10-10 |
| 4319868 | Apparatus for embossing and perforating a running ribbon of thermoplastic film on a metallic pattern roll | Coenraad E. Riemersma | 1982-03-16 |
| 4272473 | Method for embossing and perforating a running ribbon of thermoplastic film on a metallic pattern roll | Coenraad E. Riemersma | 1981-06-09 |