Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5707412 | Method of reducing glass sheet marking | Helmut Franz | 1998-01-13 |
| 5695876 | Method and composition for applying acidic interleaving material in aqueous media to glass sheets | Helmut Franz | 1997-12-09 |
| 5547129 | Low profile spray assembly | Barry L. Shadle, Helmut Franz | 1996-08-20 |