Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7277161 | Method for discerning colorless and near colorless diamonds and arrangement for carrying out this method | — | 2007-10-02 |
| 7126351 | Method and device for distinguishing gem stones | — | 2006-10-24 |
| 6525637 | Transformer | Patrick H. Van Gestel | 2003-02-25 |