Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7208864 | Oxide cathode for electron gun with a differentially doped metallic substrate | Jean-Michel Roquais | 2007-04-24 |
| 4500393 | Method for the manufacture of record stampers | — | 1985-02-19 |
| 4445995 | Cathode head having improved seal means | — | 1984-05-01 |
| 4431487 | Matrixing apparatus and method for use in the manufacture of molded records | Charles A. Weaver, Gunter John | 1984-02-14 |
| 4394341 | Method to center and separate electroformed replicas from a matrix | — | 1983-07-19 |