Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11332653 | Drilling fluid | Burnell Lee, David Brown, Graham Francis Whale, Delina Yvonne-Marie de Souza Lyon | 2022-05-17 |
| 5153603 | Self-contained alcohol recorder purging and cleaning system for direct writing type trace recorders | — | 1992-10-06 |