Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D599696 | Diamond | — | 2009-09-08 |
| D583703 | Diamond | — | 2008-12-30 |
| D582816 | Diamond | — | 2008-12-16 |
| D567705 | Diamond | — | 2008-04-29 |
| D563822 | Diamond | — | 2008-03-11 |
| D544807 | Diamond | — | 2007-06-19 |
| D530643 | Precious stone flower design | — | 2006-10-24 |
| D526237 | Precious stone flower design | — | 2006-08-08 |
| D504347 | 82 facet diamond | — | 2005-04-26 |
| D493381 | Five petal flower gemstone | — | 2004-07-27 |
| D485205 | Precious stone flower design | — | 2004-01-13 |
| D473814 | Diamond | — | 2003-04-29 |
| D469034 | Modified round faceted diamond | — | 2003-01-21 |
| D469035 | Modified princess faceted diamond | — | 2003-01-21 |
| D462922 | Diamond | Calvin S. C. Yuan | 2002-09-17 |
| D454517 | Diamond | Calvin S. C. Yuan | 2002-03-19 |
| D382225 | Diamond | — | 1997-08-12 |
| D379072 | Diamond | — | 1997-05-06 |
| D379073 | Diamond | — | 1997-05-06 |