Description
Class E21B : EARTH OR ROCK DRILLING
Subclass 3/00: Rotary drilling (drives used in the borehole E21B 4/00; rotary drilling machines in general B23B)
E21B 3/00
Sub-Class
Stats
- 303 US PATENTS IN FORCE
- 21 US APPLICATIONS PENDING
- 95 Total Patent Owners
- 953 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12247901 | Soil layer detection drilling device | Nov 12, 24 | Mar 11, 25 | POWERCHINA SEPCO1 ELECTRIC POWER CONSTRUCION CO., LTD. |
| 12168924 | Stall detection and recovery for mud motors | Aug 24, 22 | Dec 17, 24 | Helmerich & Payne, Inc. |
| 12116894 | Push the bit rotary steerable system | Apr 20, 23 | Oct 15, 24 | D-Tech (UK) Ltd |
| 12012855 | Rotary boring mining machine inertial steering system | Jul 19, 22 | Jun 18, 24 | The Mosaic Company |
| 12000215 | Drilling string, threaded coupling, and rod adaptor for rotary drilling | Nov 06, 19 | Jun 04, 24 | Sandvik Mining and Construction G.m.b.H.; Sandvik Mining and Construction Australia Pty Ltd; Sandvik Mining and Construction Australia (Production/Supply) Pty Ltd; |
| 11959336 | Drilling system and method of using same | Oct 20, 22 | Apr 16, 24 | Not available |
| 11808151 | Dual rod directional drilling system | Mar 09, 21 | Nov 07, 23 | Vermeer Manufacturing Company |
| 11746606 | Method of mounting a Kelly bar on a drilling machine, relevant mounting tool and a drilling machine equipped with such mounting tool | Aug 02, 21 | Sep 05, 23 | Soilmec S.p.a. |
| 11559149 | Method and apparatus for transitioning between rotary drilling and slide drilling while maintaining a bit of a bottom hole assembly on a wellbore bottom | Aug 14, 20 | Jan 24, 23 | Nabors Drilling Technologies USA, Inc. |
| 11549311 | Rotary drive arrangement for a drill rod | Jan 06, 22 | Jan 10, 23 | Eurodrill GmbH |
| 11512558 | Device and method to trigger, shift, and/or operate a downhole device of a drilling string in a wellbore | Nov 04, 20 | Nov 29, 22 | Black Diamond Oilfield Rentals LLC |
| 11499376 | Drilling system and method of using same | Jul 24, 18 | Nov 15, 22 | Not available |
| 11466556 | Stall detection and recovery for mud motors | May 17, 19 | Oct 11, 22 | Helmerich & Payne, Inc. |
| 11448259 | Methods of manufacturing combination thrust-bearing and radial bearing apparatuses | Apr 29, 20 | Sep 20, 22 | US Synthetic Corporation |
| 11441360 | Downhole eccentric reamer tool and related systems and methods | Dec 17, 20 | Sep 13, 22 | NATIONAL OILWELL VARCO L.P. |
| 11434694 | Automated spiraling detection | Jul 03, 18 | Sep 06, 22 | Baker Hughes Incorporated |
| 11396775 | Rotary steerable drilling assembly with a rotating steering device for drilling deviated wellbores | Jul 31, 20 | Jul 26, 22 | Baker Hughes, a GE company, LLC |
| 11391150 | Rotary boring mining machine inertial steering system | Aug 11, 20 | Jul 19, 22 | The Mosaic Company |
| 11332978 | Offset coupling for mud motor drive shaft | Nov 11, 20 | May 17, 22 | Halliburton Energy Services, Inc. |
| 11162009 | Lubricant additives for water based drilling fluid | Jun 19, 18 | Nov 02, 21 | Gumpro Drilling Fluid PVT. LTD. |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 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 |
| 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 |
| 2020/0165,915 | GRADED PRESSURE DROP TYPE DETECTION SYSTEM AND DETECTION METHOD OF BOREHOLE CRACKS | Apr 20, 18 | May 28, 20 | 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 |
| 2018/0073,358 | ROTARY BORING MINING MACHINE INERTIAL STEERING SYSTEM | Sep 11, 17 | Mar 15, 18 | THE MOSAIC COMPANY |
| 2015/0376,950 | DOWNHOLE TOOL USING A LOCKING CLUTCH | Jun 16, 15 | Dec 31, 15 | Not available |
| 2015/0369,030 | CLOSED-LOOP DRILLING PARAMETER CONTROL | Dec 20, 13 | Dec 24, 15 | HALLIBURTON ENERGY SERVICES, INC. |
| 2015/0371,344 | Automated Rig Activity Report Generation | Mar 19, 14 | Dec 24, 15 | Not available |
| 2015/0330,148 | PUSH REAMER | Nov 15, 13 | Nov 19, 15 | VERMEER MANUFACTURING COMPANY |
| 2015/0315,902 | Rotation Activated Downhole Orientation System and Method | Dec 10, 13 | Nov 05, 15 | REFLEX TECHNOLOGY INTERNATIONAL PTY LTD |
| 2015/0308,196 | CASING DRILLING UNDER REAMER APPARATUS AND METHOD | Apr 28, 15 | Oct 29, 15 | Not available |
| 2015/0300,092 | Slow Drilling Assembly and Method | Aug 20, 12 | Oct 22, 15 | HALLIBURTON ENERGY SERVICES, INC. |
| 2015/0184,465 | No-Waterway Or Single Waterway Drill Bits And Systems And Methods For Using Same | Dec 30, 14 | Jul 02, 15 | LONGYEAR TM, INC. |
| 2015/0152,697 | DEVICE AND METHOD FOR HANDLING DRILL STRING COMPONENTS IN ROCK DRILLING AND ROCK DRILL RIG | Jun 25, 13 | Jun 04, 15 | ATLAS COPCO CRAELIUS AB |
| 2015/0132,604 | Multilayered Coating for Downhole Tools with Enhanced Wear Resistance and Acidic Corrosion Resistance | Nov 12, 14 | May 14, 15 | NATIONAL OILWELL DHT, L.P. |
Top Owners in This Subclass
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Patents Issued To Date - By Filing Year
Average Time to Issuance
- 30 Months (last 2 years Issuances)
- 30 Months (last 5 years Issuances)