Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874984 | Fluorescent lamp based on a phosphor excited by a molecular discharge | Walter P. Lapatovich, Michael N. Alexander | 1989-10-17 |
| 4825124 | Phosphor particle, fluorescent lamp, and manufacturing method | — | 1989-04-25 |
| 4818433 | Process for producing lanthanum cerium aluminate phosphors | Michael N. Alexander, Charles W. Struck | 1989-04-04 |
| 4797594 | Reprographic aperture lamps having improved maintenance | Fred R. Taubner | 1989-01-10 |