Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5041900 | Semiconductor device having sealed electrical feedthrough | Frank Chen, David E. Blackaby | 1991-08-20 |
| 4908921 | Method of making capacitive pressure sensors | Frank Chen, David E. Blackaby | 1990-03-20 |
| 4849374 | Method of sealing an electrical feedthrough in a semiconductor device | Frank Chen, David E. Blackaby | 1989-07-18 |