Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7111949 | Process for manufacturing retroreflective printed material | Agostino Parisi | 2006-09-26 |
| 4328667 | Field-emission ion source and ion thruster apparatus comprising such sources | Dominique Valentian, Heinrich A. Pfeffer, Hans-Joachim Herhudt V. Rohden, Duncan Stewart | 1982-05-11 |