Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5364171 | Apparatus and method for continuous mining | Larry C. Addington, Robert R. Addington, Larry M. Addington, John Susla, David L. Conley +2 more | 1994-11-15 | |
| 5261729 | Apparatus for continuous mining | Larry C. Addington, Robert R. Addington, Larry M. Addington, John Susla, David L. Conley +2 more | 1993-11-16 | |
| 5232269 | Launch vehicle for continuous mining apparatus | Larry C. Addington, Robert R. Addington, Larry M. Addington, John Susla, David L. Conley +2 more | 1993-08-03 | |
| 5112111 | Apparatus and method for continuous mining | Larry C. Addington, Robert R. Addington, Larry M. Addington, John Susla, David L. Conley +2 more | 1992-05-12 | $1,711,000 |