Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5958295 | Terbium-activated rare earth oxysulfide phosphor with enhanced blue emission | — | 1999-09-28 |
| 5879587 | Terbium-activated rare earth oxysulfide phosphor with enhanced green:blue emission ratio | — | 1999-03-09 |
| 5879588 | Terbium-activated gadolinium oxysulfide phosphor with reduced blue emission | — | 1999-03-09 |
| 5096614 | Process for producing a terbium-activated gadolinium oxysulfide X-ray phosphor wherein the green/blue emission ratio is controlled | Ronald E. Karam | 1992-03-17 |
| 5013582 | Process for providing hydrolysis resistant phosphors | — | 1991-05-07 |
| 4925594 | Hydrolysis resistance of rare earth oxysulfide phosphors produced by the addition of zinc in synthesis | — | 1990-05-15 |
| 4888129 | Process for producing a terbium-activiated gadolinium oxysulfide x-ray phosphor having a specific green/blue emission ratio by the addition of zinc | — | 1989-12-19 |
| 4690832 | Process for providing hydrolysis resistant phosphors | — | 1987-09-01 |
| 4624861 | Rare earth oxysulfide phosphors and processes for creating same | Nelson W. Shearer | 1986-11-25 |
| 4507560 | Terbium-activated gadolinium oxysulfide X-ray phosphor | James E. Mathers | 1985-03-26 |
| 4405691 | Terbium activated yttrium gadolinium oxysulfide X-ray phosphor and screen containing the same | — | 1983-09-20 |
| 4191662 | Y.sub.2 O.sub.3 :Eu phosphor having increased brightness | James E. Mathers | 1980-03-04 |