| 2025/0067,632 | SOIL LAYER DETECTION DRILLING DEVICE | Nov 12, 24 | Feb 27, 25 | POWERCHINA SEPCO1 ELECTRIC POWER CONSTRUCTION CO., LTD. |
| 2025/0059,876 | STALL DETECTION AND RECOVERY FOR MUD MOTORS | Nov 04, 24 | Feb 20, 25 | Not available |
| 2024/0318,552 | ROTARY BORING MINING MACHINE INERTIAL STEERING SYSTEM | Jun 05, 24 | Sep 26, 24 | Not available |
| 2023/0366,282 | Drilling System for Recovering Nearly Undisturbed Cores From Loose to Solid Ground | Sep 24, 21 | Nov 16, 23 | Not available |
| 2022/0145,705 | Offset Coupling For Mud Motor Drive Shaft | Nov 11, 20 | May 12, 22 | Halliburton Energy Services, Inc. |
| 2021/0340,854 | CASH WRAP GREETING CARD DISPLAY | Jul 14, 21 | Nov 04, 21 | Not available |
| 2021/0189,802 | DUAL ROD DIRECTIONAL DRILLING SYSTEM | Mar 09, 21 | Jun 24, 21 | Not available |
| 2020/0362,635 | DUAL ROD DIRECTIONAL DRILLING SYSTEM | Jul 23, 20 | Nov 19, 20 | Not available |
| 2020/0362,637 | ROTARY STEERABLE DRILLING ASSEMBLY WITH A ROTATING STEERING DEVICE FOR DRILLING DEVIATED WELLBORES | Jul 31, 20 | Nov 19, 20 | Baker Hughes, a GE company, LLC |
| 2020/0300,040 | DUAL ROD DIRECTIONAL DRILLING SYSTEM | Jun 08, 20 | Sep 24, 20 | Not available |
| 2020/0240,212 | BENT HOUSING DRILLING MOTOR WITH COUNTER-ROTATING LOWER END | Jan 29, 19 | Jul 30, 20 | Not available |
| 2020/0165,915 | GRADED PRESSURE DROP TYPE DETECTION SYSTEM AND DETECTION METHOD OF BOREHOLE CRACKS | Apr 20, 18 | May 28, 20 | Not available |
| 2019/0169,973 | Downhole Clutch Joint for Multi-Directionally Rotating Downhole Drilling Assembly | Feb 08, 19 | Jun 06, 19 | Not available |
| 2018/0355,718 | GRIPPING DEVICE AND METHOD OF GRIPPING DRILLING TOOLS | Jun 11, 18 | Dec 13, 18 | Not available |
| 2018/0266,180 | WELL-DRILLING APPARATUS AND METHOD OF USE | Mar 12, 18 | Sep 20, 18 | Not available |
| 2018/0252,040 | UP DRILL APPARATUS AND METHOD | Mar 13, 18 | Sep 06, 18 | Ashmin Holding LLC |
| 2018/0230,748 | GROUND PROCESSING TOOL AND A METHOD FOR CREATING A BOREHOLE IN THE GROUND | Jan 31, 18 | Aug 16, 18 | Bauer Maschinen GmbH |
| 2018/0163,352 | SYSTEMS AND METHODS FOR SENSING WEAR OF REDUCING ELEMENTS OF A MATERIAL REDUCING MACHINE | Feb 12, 18 | Jun 14, 18 | Not available |
| 2018/0073,358 | ROTARY BORING MINING MACHINE INERTIAL STEERING SYSTEM | Sep 11, 17 | Mar 15, 18 | THE MOSAIC COMPANY |
| 2017/0175,451 | HOLE OPENER AND METHOD FOR DRILLING | Mar 01, 17 | Jun 22, 17 | Not available |