Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6840585 | Rotary cutting head with water supply | William Stephen Clapham | 2005-01-11 |
| 6536847 | Pick box for housing a mineral cutter pick | William Stephen Clapham, Gunter Dlugosch, Angelo Weigelt | 2003-03-25 |
| 6099081 | Point attack tooling system for mineral winning | William Stephen Clapham | 2000-08-08 |
| D420013 | Sleeve for tooling system for mineral winning | William Stephen Clapham | 2000-02-01 |
| D413126 | Sleeve for tooling system for mineral winning | William Stephen Clapham | 1999-08-24 |
| 5744034 | Hydraulic circuit | William Stephen Clapham | 1998-04-28 |