Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7834987 | Systems and methods for evaluating the appearance of a gemstone | Ilene Reinitz, James Shigley, Thomas Scott Hemphill | 2010-11-16 |
| 7436497 | Apparatus and method for providing spot lighting for gemstone observation | Alvan Gilbertson, David S. H. Rosenthal | 2008-10-14 |
| 7260544 | System and methods for evaluating the appearance of a gemstone | Ilene Reinitz, James Shigley, Thomas Scott Hemphill | 2007-08-21 |
| 7088434 | Apparatus and method for providing spot lighting for gemstone observation | Alvan Gilbertson, David S. H. Rosenthal | 2006-08-08 |
| 6311641 | Bird perch, feeder, and bath | — | 2001-11-06 |
| 5920265 | Waterline leak detection and shutoff system | George P. Johnson | 1999-07-06 |