Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D699618 | Surface ornamentation for a diamond | Benjamin Gudlewski | 2014-02-18 |
| 8239143 | System and method for gemstone cut grading | Troy Blodgett, Ronald Geurts, Barak Green, T. Scott Hemphill, Tom Moses | 2012-08-07 |
| 8095325 | System and method for gemstone cut grading | Troy Blodgett, Ronald Geurts, Barak Green, T. Scott Hemphill, Tom Moses | 2012-01-10 |
| 7571060 | System and method for gemstone cut grading | Troy Blodgett, Ronald Geurts, Barak Green, T. Scott Hemphill, Tom Moses | 2009-08-04 |
| 6795171 | Device for judging symmetry, brightness, and efficiency of light return in precious stones | — | 2004-09-21 |
| 6665058 | Device for judging symmetry, brightness, and efficiency of light return in precious stones | — | 2003-12-16 |