Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4577972 | Spouted bed blender apparatus | Irving E. Knudsen | 1986-03-25 |
| 4249776 | Method for optimal placement and orientation of wells for solution mining | Calvin C. Chien | 1981-02-10 |