Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6417435 | Audio-acoustic proficiency testing device | Daniel Rosen | 2002-07-09 |
| 4691702 | Aspirating device | — | 1987-09-08 |
CC
Constantin B. Chantzis
Overall (All Time): #2,215,943 of 4,157,543Top 55%
2
Patents All Time