Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864846 | Self-cleaning poppet valve for a core testing apparatus | — | 1989-09-12 |
| 4856967 | Hybrid high pressure pump for gas-liquid permeameters | — | 1989-08-15 |
| RE32964 | System for measuring the pore volume and permeability of very tight core plugs and method therefor | — | 1989-06-27 |