Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8239143 | System and method for gemstone cut grading | Troy Blodgett, Ronald Geurts, Al Gilbertson, Barak Green, T. Scott Hemphill | 2012-08-07 |
| 8095325 | System and method for gemstone cut grading | Troy Blodgett, Ronald Geurts, Al Gilbertson, Barak Green, T. Scott Hemphill | 2012-01-10 |
| 7571060 | System and method for gemstone cut grading | Troy Blodgett, Ronald Geurts, Al Gilbertson, Barak Green, T. Scott Hemphill | 2009-08-04 |