Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5144246 | Vacuum tube characterization apparatus | Gregory John Derzay | 1992-09-01 |
FS
Frank A. Stelloh
Overall (All Time): #3,858,459 of 4,157,543Top 95%
1
Patents All Time