Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885078 | Devices capable of removing silicon and aluminum from gaseous atmospheres | Charles J. Spengler | 1989-12-05 |
| 4861345 | Method of bonding a conductive layer on an electrode of an electrochemical cell | Jeffrey C. Bowker | 1989-08-29 |