Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4630868 | Process for solution mining | Sidney J. Green | 1986-12-23 |
| 4547468 | Hollow proppants and a process for their manufacture | Raymond Ashton Cutler | 1985-10-15 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4630868 | Process for solution mining | Sidney J. Green | 1986-12-23 |
| 4547468 | Hollow proppants and a process for their manufacture | Raymond Ashton Cutler | 1985-10-15 |