Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6164899 | Disk transfer apparatus | Marlo Burg | 2000-12-26 |
| 5096335 | Polymer grid for supplemental roof and rib support of combustible underground openings | Ronald P. Anderson, William S. Shelton | 1992-03-17 |