Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4762756 | Thermochemical surface treatments of materials in a reactive gas plasma | Erich Bergmann | 1988-08-09 |
| 4749587 | Process for depositing layers on substrates in a vacuum chamber | Erich Bergmann | 1988-06-07 |