Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879270 | Method of forming superconducting ceramics by electrodeposition | MacRae Maxfield, Zafar Igbal, Helmut Eckhardt | 1989-11-07 |
| 4870051 | Method of forming superconducting ceramics by electrodeposition | MacRae Maxfield, Zafar Iqbal, Helmut Eckhardt | 1989-09-26 |
| 4848875 | Dual-pane thermal window with liquid crystal shade | Ernest D. Buff, Helmut Eckhardt, Gerhard Fuchs | 1989-07-18 |