Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5388521 | Method of reducing ground vibration from delay blasting | — | 1995-02-14 |
| 5099763 | Method of blasting | Rufus E. Flinchum | 1992-03-31 |
| 5071496 | Low level blasting composition | Rufus Flinchman | 1991-12-10 |
| 4586438 | Borehole stemming with a column of liquefiable and/or vaporizable chunks of solid material | James Heffner | 1986-05-06 |
| 4510958 | Apparatus and method for transferring a Bingham solid through a long conduit | — | 1985-04-16 |
| 4462429 | Apparatus and method for transferring a Bingham solid through a long conduit | — | 1984-07-31 |
| 4431349 | Ice-filled structure and tunnelling method for the egress and launching of deep-based missiles | — | 1984-02-14 |
| 4239286 | In situ leaching of ore bodies | — | 1980-12-16 |
| 4220205 | Method of producing self-propping fluid-conductive fractures in rock | George Cowan | 1980-09-02 |