| 9995139 | Surrounding rock pretreatment method for TBM passing through round tunnel section with high rock-burst risk | Jun 23, 17 | Jun 12, 18 | Not available |
| 9995086 | Center-pillared full-face shaft drilling machine | Dec 09, 14 | Jun 12, 18 | Not available |
| 9995140 | Yieldable prop with yieldable insert | Sep 08, 14 | Jun 12, 18 | FCI Holdings Delaware, Inc. |
| 9995138 | Device for sinking a shaft and method for sinking a shaft | Jun 02, 14 | Jun 12, 18 | HERRENKNECHT AKTIENGESELLSCHAFT |
| 9982536 | Method pertaining to a rock bolting configuration, a rock bolting configuration, a vehicle comprising a rock bolting configuration and a computer program product | Aug 26, 13 | May 29, 18 | Epiroc Rock Drills Aktiebolag |
| 9982537 | Method of supporting a rock wall | Aug 18, 17 | May 29, 18 | NCM INNOVATIONS (PTY) LTD |
| 9982799 | Hydraulic assembly for a mining system | Mar 09, 16 | May 29, 18 | CATERPILLAR GLOBAL MINING EUROPE GMBH |
| 9970292 | Drilling apparatus | Apr 03, 15 | May 15, 18 | J.H. Fletcher & Co. |
| 9970291 | Fill fence system and method for installing same | Oct 04, 17 | May 15, 18 | Sturda Inc. |
| 9963966 | Advancing ram pin retention device | Feb 10, 17 | May 08, 18 | Joy MM Delaware, Inc. |
| 9957796 | Tunnel boring machine | Jan 20, 16 | May 01, 18 | Hitachi Zosen Corporation |
| 9957797 | Method and arrangment for mounting bolts in a tunnel wall | Jul 01, 15 | May 01, 18 | Skanska Sverige AB |
| 9957711 | Wall seal system | Jun 27, 14 | May 01, 18 | Not available |
| 9951618 | Removable barrier for protecting tunnels and other structures from flooding and other hazards | Jul 29, 14 | Apr 24, 18 | Not available |
| 9951617 | Tunnel boring device, and control method therefor | Nov 04, 14 | Apr 24, 18 | Komatsu Ltd. |
| 9945668 | Tunnel convergence detection apparatus and method | Mar 28, 17 | Apr 17, 18 | Queen's University at Kingston |
| 9945229 | Formwork system | Mar 06, 17 | Apr 17, 18 | Not available |
| 9938828 | Mobile conveyor device for the delivery of tunnel liners | May 22, 17 | Apr 10, 18 | Not available |
| 9932812 | Excavation status monitoring system for tunneling machine | Nov 12, 13 | Apr 03, 18 | HITACHI ZOSEN CORPORATION |
| 9932826 | Mobile mining | Aug 13, 13 | Apr 03, 18 | Caterpillar Global Mining Europe GmbH |