Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5099332 | Grid tube with increased efficiency | Guy Peillex-Delphe, Pierre Gerlach | 1992-03-24 |
| 4571525 | Resonant coaxial cavities for a grid vacuum tube | Pierre Gerlach | 1986-02-18 |
| 4311975 | Frequency band filter | Michel R. Benoit, Pierre Gerlach, Alain Lartillot | 1982-01-19 |