Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D302471 | Compact fluorescent lamp | Stephen Johnson | 1989-07-25 |
| D302472 | Compact fluorescent reflector lamp | Wallace T. MacDonald, Harish F. Gandhi, Antonius J. M. Van Hees, Frederik H. Alkema | 1989-07-25 |
| D302473 | Compact fluorescent lamp | Wallace T. MacDonald, Harish F. Gandhi | 1989-07-25 |