Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7374611 | Sprayable machinable media | Dennis Mark Lettkeman, Raymond A. Kaligian, Salvatore C. Immordino | 2008-05-20 |
| 7338990 | High molecular weight additives for calcined gypsum and cementitious compositions | Dennis Mark Lettkeman, Raymond A. Kaligian, William Kelly Bedwell | 2008-03-04 |
| 7056964 | High strength flooring compositions | Dennis Mark Lettkeman, Raymond A. Kaligian, William Kelly Bedwell, Sharon Meiseman | 2006-06-06 |