Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4498305 | Probe for measuring electrical conductance | — | 1985-02-12 |
| 4449396 | Probe for measuring electrical conductance | — | 1984-05-22 |
| 4434233 | Method of testing oil for ionic contaminants | — | 1984-02-28 |
| 4409362 | Resin-oil shale composite reaction product | Howard W. Sibley | 1983-10-11 |
| 4357230 | Extraction of oil using amides | Howard W. Sibley | 1982-11-02 |