Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9442402 | Method of making a phosphorescent toner | Kevin L. Heilman, Michael R. Riley | 2016-09-13 |
| 9081315 | Phosphorescent toner and methods of forming and using the same | Kevin L. Heilman, Michael R. Riley | 2015-07-14 |
| 7842445 | Secure imaging toner and methods of forming and using the same | Michael R. Riley, Kevin L. Heilman, Linda M. Barnum, Bruce Littleton | 2010-11-30 |