Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8316915 | High speed door assembly | Brian Norbert Drifka, Arno Klein, Donald P. Grasso, Daniel Gregoriou, Walenty Kalempa | 2012-11-27 |
| 7522745 | Sensor and imaging system | Donald P. Grasso, Steve Johnson | 2009-04-21 |