Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4728852 | Device for fixing a pyrolytic graphite grid onto the base of an electron tube | — | 1988-03-01 |
| 4644217 | Electron tube with a device for cooling the grid base | Pierre Gerlach | 1987-02-17 |
| 4639633 | Electron tube with cathode cooling device | Pierre Gerlach | 1987-01-27 |
| 4563609 | Directly-heated cathodes | Guy Clerc, Pierre Gerlach | 1986-01-07 |
| 4488086 | Method for the manufacture of a device ensuring an electrical and thermal contact between a plurality of metal surfaces, device obtained by this method, and use of said device | — | 1984-12-11 |
| 4387320 | Electron tube with cylindrical grid of pyrolytic graphite | — | 1983-06-07 |
| 4245379 | Method of fabrication of flat grids of pyrolitic graphite for electron tubes | Pierre Gerlach | 1981-01-20 |
| 4229674 | Grid of pyrolytic graphite for a high-power electron tube and a method for the assembly of said grid | — | 1980-10-21 |