Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859344 | Method for underground support and removal of hazardous ions in ground waters | Lloyd Byron Spangle | 1989-08-22 |
| 4741834 | Method for underground support and removal of hazardous ions in ground waters | Lloyd Byron Spangle | 1988-05-03 |