Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9336995 | Multiple radio frequency power supply control of frequency and phase | David J. Coumou, Daniel M. Gill | 2016-05-10 |
| 6983215 | RF metrology characterization for field installation and serviceability for the plasma processing industry | David J. Coumou, Clifford C. Weatherell, Kevin P. Nasman | 2006-01-03 |
| 6707255 | Multirate processing for metrology of plasma RF source | David J. Coumou | 2004-03-16 |