Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6346770 | Discharge device having cathode with micro hollow array | Karl H. Schoenbach, Wojciech W. Byszewski, Frank E. Peterkin | 2002-02-12 |
| 6072273 | Discharge device having cathode with micro hollow array | Karl H. Schoenbach, Wojciech W. Byszewski, Frank E. Peterkin | 2000-06-06 |
| 5939829 | Discharge device having cathode with micro hollow array | Karl H. Schoenbach, Wojciech W. Byszewski, Frank E. Peterkin | 1999-08-17 |
| 5686789 | Discharge device having cathode with micro hollow array | Karl H. Schoenbach, Wojciech W. Byszewski, Frank E. Peterkin | 1997-11-11 |