Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6586497 | Transport of solid particulates | Frank T. Gay, Daniel Constantiner, Jeffrey Champa, Kevin Hutchings | 2003-07-01 |
| 6297295 | Transport of solid particulates | Frank T. Gay, Daniel Constantiner, Jeffrey Champa, Kevin Hutchings | 2001-10-02 |
| 6168352 | Apparatus for producing high density slurry and paste backfills | Long Chen, Alfred Annor | 2001-01-02 |
| 5888026 | Backfill paste production facility and method and apparatus for producing high density slurry and paste backfills | Long Chen, Alfred Annor | 1999-03-30 |