Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5680005 | Phosphor distribution for helical compact fluorescent lamp | Thomas F. Soules, Pamela K. Whitman | 1997-10-21 |
| 5675215 | Compact fluorescent lamp having a helical lamp envelope and an efficient mounting arrangement therefor | Roy Watson, Thomas F. Soules | 1997-10-07 |