Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7757789 | Drill bit and insert having bladed interface between substrate and coating | Zhou Yong, Jiaqing Yu | 2010-07-20 |
| 7167776 | Method and system for controlling a vapor generator | Niranjan Maharajh, David Keeler | 2007-01-23 |