Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5159895 | Packaged article assembly | Robert W. Helling, Dean V. Rogers | 1992-11-03 |
| 5035104 | Method of packaging easily damaged articles | Robert W. Helling, Dean V. Rogers | 1991-07-30 |
| 5016428 | Inflating apparatus and method | Robert W. Helling | 1991-05-21 |
| 4950039 | Multiple-shelf storage container for thin flexible stackable articles | Robert W. Helling | 1990-08-21 |