Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7585799 | Microspheres having a high index of refraction | Matthew H. Frey, Billy J. Frederick, Jr. | 2009-09-08 |
| 7524779 | Microspheres having a high index of refraction | Matthew H. Frey, Billy J. Frederick, Jr. | 2009-04-28 |
| 4837069 | Transparent alumina microspheres | Benjamin T. Fellows, Charles Leedecke | 1989-06-06 |