Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4691434 | Method of making electrically conductive regions in monolithic semiconductor devices as applied to a semiconductor device | Ernst Uhlmann | 1987-09-08 |
| 4689657 | IC interconnect system using metal as a mask | Ernst Uhlmann | 1987-08-25 |