Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8851804 | Pumpable support with cladding | David A. Hussey, George A. Watson | 2014-10-07 |
| 8777522 | Mine seal with multiple mortared walls | George A. Watson, David A. Hussey | 2014-07-15 |
| 8342776 | Mine seal with adhesive | George A. Watson, David A. Hussey | 2013-01-01 |
| 4787913 | Coal briquetting process | Joseph Goleczka, Walter Harris, Simon Kelly | 1988-11-29 |