Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5944572 | Fluorescent lamp with phosphor coating of multiple layers | Thomas F. Soules, Daniel R. Chirayath | 1999-08-31 |
| 5917291 | Electrodeless fluorescent lamp having an improved phosphor distribution arrangement and a method of making the same | Thomas F. Soules, Judit Szigeti, Gabor Sajo, Laszlo Balazs | 1999-06-29 |
| 5731659 | Fluorescent lamp with phosphor coating of multiple layers | Thomas F. Soules, Daniel R. Chirayath | 1998-03-24 |
| 5723937 | Light-scattering coating, its preparation and use | Thomas G. Parham | 1998-03-03 |
| 5680005 | Phosphor distribution for helical compact fluorescent lamp | Thomas F. Soules, Jennifer I. Barry | 1997-10-21 |
| 5627426 | Lamp with IR reflecting film and light-scattering coating | Thomas G. Parham, Thomas M. Sharda | 1997-05-06 |
| 5578892 | Bug free linear quartz halogen lamp | Thomas G. Parham | 1996-11-26 |
| 5536991 | Lamp having silica protective coating | Thomas G. Parham, Leonard E. Hoegler | 1996-07-16 |
| 5391959 | Fluorescent lamps and improved yytrium-containing phosphors useful therein | Mohamed Emam Labib, Henry Wielicki | 1995-02-21 |
| 5268614 | Fluorescent lamps and improved yttrium-containing phosphors useful therein | Mohamed Emam Labib, Henry Wielicki, by Edward A. Wielicki, executor, by Joanna Wielicki, executrix | 1993-12-07 |
| 5258689 | Fluorescent lamps having reduced interference colors | Jon Bennett Jansma, Thomas G. Parham | 1993-11-02 |