Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4984949 | Continuous bookbinding process using a moisture curable polyurethane adhesive | — | 1991-01-15 |
| 4692370 | Process for nonslip finishing of smooth surfaces of objects and objects produced thereby | Heinz P. Holzapfel | 1987-09-08 |