Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6967223 | Fiber-free shaped parts | Robert Graf, Klaus Lehr, Wolfgang Six | 2005-11-22 |
| 6544445 | Fire-resistant opening seal | Robert Graf | 2003-04-08 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6967223 | Fiber-free shaped parts | Robert Graf, Klaus Lehr, Wolfgang Six | 2005-11-22 |
| 6544445 | Fire-resistant opening seal | Robert Graf | 2003-04-08 |