Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7834987 | Systems and methods for evaluating the appearance of a gemstone | Ilene Reinitz, Mary Johnson, Thomas Scott Hemphill | 2010-11-16 |
| 7260544 | System and methods for evaluating the appearance of a gemstone | Ilene Reinitz, Mary Johnson, Thomas Scott Hemphill | 2007-08-21 |
| 6650489 | Gem identification viewer | Gilbert Norman Ravich, Shane Elen | 2003-11-18 |
| 6292315 | Gem identification viewer | Gilbert Norman Ravich, Shane Elen | 2001-09-18 |