Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8931628 | Automated face conveyor chain tension load sensor in chain tension plate | — | 2015-01-13 |
| 8262169 | Rack bar haulage system with an improved rackbar to line pan connection | — | 2012-09-11 |
| 7201062 | Device for measuring the tension in a continuous chain with link ends | John Tout | 2007-04-10 |
| 7067141 | Pesticidal treatment materials | — | 2006-06-27 |
| 4629368 | Shield supports suitable for use in mines | — | 1986-12-16 |
| 4609308 | Roof support suitable for use in mines | Neville J. H. Sleigh | 1986-09-02 |
| 4568222 | Mine-roof supports | — | 1986-02-04 |
| 4430026 | Roof support suitable for use in mines | Dennis F. Rutherford | 1984-02-07 |