| 2024/0117,687 | SHOULDER PROTECTED DRILLING ASSEMBLY | Oct 09, 20 | Apr 11, 24 | Not available |
| 2024/0076,978 | METHOD AND SYSTEM FOR OPTIMISING A DRILLING PARAMETER DURING AN ONGOING DRILLING PROCESS | Nov 30, 21 | Mar 07, 24 | Not available |
| 2023/0009,356 | DOWNHOLE DISPLACEMENT IMPACT METHOD AND IMPACT DRILLING TOOL | Jul 08, 22 | Jan 12, 23 | Yangtze University |
| 2022/0003,042 | APPARATUS AND METHOD FOR MODIFYING AXIAL FORCE | Sep 17, 21 | Jan 06, 22 | Not available |
| 2020/0181,978 | Two-Piston Hydraulic Striking Device | Jun 22, 17 | Jun 11, 20 | Furukawa Rock Drill Co., Ltd. |
| 2020/0165,871 | VALVE PILOTING ARRANGEMENTS FOR HYDRAULIC PERCUSSION DEVICES | Jul 17, 18 | May 28, 20 | MINCON INTERNATIONAL LIMITED |
| 2018/0363,375 | PERCUSSION BORING DEVICE | Jun 28, 16 | Dec 20, 18 | Tracto-Technik GmbH & Co. KG |
| 2018/0283,101 | HAMMER DRILL | Jun 07, 18 | Oct 04, 18 | Ashmin Holding LLC |
| 2018/0266,179 | HAMMER REAMER FOR EXPANDING A PILOT BORE | May 08, 18 | Sep 20, 18 | Not available |
| 2018/0262,074 | Method of Encapsulating Motor Windings of Electrical Submersible Pump in Bonded Ceramic | May 09, 18 | Sep 13, 18 | Baker Hughes, a GE company, LLC |
| 2018/0058,145 | APPARATUS AND METHODS FOR ACTIVATING A DOWNHOLE PERCUSSION TOOL | Aug 25, 17 | Mar 01, 18 | NATIONAL OILWELL DHT, L.P. |
| 2018/0010,389 | APPARATUS AND METHOD FOR MODIFYING AXIAL FORCE | Mar 27, 15 | Jan 11, 18 | ANDERSON, CHARLES ABERNETHY |
| 2017/0175,446 | Force Stacking Assembly for Use with a Subterranean Excavating System | Dec 13, 16 | Jun 22, 17 | ARAMCO OVERSEAS COMPANY B.V., GEOPROBER LTD., |
| 2017/0030,166 | SHOCK AND VIBRATION TOOL MODELING | Jul 22, 16 | Feb 02, 17 | SCHLUMBERGER TECHNOLOGY CORPORATION |
| 2016/0153,236 | PERCUSSION HAMMER BIT | Aug 20, 14 | Jun 02, 16 | Not available |
| 2016/0108,674 | HAMMER DRILL | Sep 24, 15 | Apr 21, 16 | ASHMIN HOLDING LLC |
| 2016/0069,134 | DEVICE AND SYSTEM FOR PERCUSSION ROCK DRILLING | May 16, 11 | Mar 10, 16 | ATLAS COPCO SECOROC AB |
| 2016/0069,135 | RAM BORING DEVICE | Jul 29, 15 | Mar 10, 16 | TRACTO-TECHNIK GMBH & CO. KG |
| 2015/0375,382 | DEVICE FOR PRESSURE MONITORING | Jun 24, 15 | Dec 31, 15 | CONSTRUCTION TOOLS GMBH |
| 2015/0375,383 | PRESSURE MONITORING DEVICE | Jun 24, 15 | Dec 31, 15 | CONSTRUCTION TOOLS GMBH |