Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11294110 | Fabricating diffractive structures on gemstones for high optical performance | Mark L. de Naray, Lance Richardson | 2022-04-05 |
| 10890536 | Gemstone handling and analysis system | Randall M. Wagner | 2021-01-12 |
| 10040161 | Gemstone positioning fixture | Randall M. Wagner | 2018-08-07 |
| 9518929 | Engraved gemstone viewer for personal communications devices | Randall M. Wagner | 2016-12-13 |
| 9239294 | Gem identification method and apparatus using digital imaging viewer | Randall M. Wagner, Xianghong Zhao | 2016-01-19 |
| 9213187 | Engraved gemstone viewer for personal communications devices | Randall M. Wagner | 2015-12-15 |
| 8035807 | Engraved gemstone viewer | Randall M. Wagner | 2011-10-11 |
| 7468786 | Engraved gemstone viewer | Randall M. Wagner | 2008-12-23 |
| 6348964 | Viewer for gemstones | Randall M. Wagner | 2002-02-19 |
| 5793290 | Area security system | James G. Eagleson, Peter G. Scharpf, Hua Zong, Paul R. Ahlf | 1998-08-11 |
| 5546950 | Electrocardiograpic patient lead cable apparatus | David W. Mortara | 1996-08-20 |