Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7242008 | Bipolar ion detector | Douglas L. Lewis, Keith A. Soldavin | 2007-07-10 |
| 6392327 | Sonic transducer and feedback control method thereof | Douglas L. Lewis, Eilaz Babaev, Robert J. Wojciechowski, Ashok Kumar, Jian Ruan +1 more | 2002-05-21 |