Issued Patents 2016
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9346996 | Oil well cementing products with synthetic gypsum and methods | Dennis Mark Lettkeman, John W. Wilson, Doug Blackburn, Brian K. Ball, Raymond A. Kaligian | 2016-05-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9346996 | Oil well cementing products with synthetic gypsum and methods | Dennis Mark Lettkeman, John W. Wilson, Doug Blackburn, Brian K. Ball, Raymond A. Kaligian | 2016-05-24 |