Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D550857 | Casement window | Helmut Schmidt | 2007-09-11 |
| 6898914 | Muntin grid assembly and mounting system | Helmut Schmidt | 2005-05-31 |
| D492795 | Casement window | Helmut Schmidt | 2004-07-06 |