Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4919533 | Method for detecting diamonds in remote locations | Heather J. Bowley, John E. Preedy | 1990-04-24 |
| 4907875 | Diamond separation process | Heather J. Bowley | 1990-03-13 |
| 4900147 | Diamond mapping | Heather J. Bowley | 1990-02-13 |
| 4875771 | Method for assessing diamond quality | Heather J. Bowley | 1989-10-24 |
| 4799786 | Method of diamond identification | — | 1989-01-24 |
| 4693377 | Diamond separation using raman scattering | John E. Preedy, Kenneth P. J. Williams | 1987-09-15 |