Description
Class E21B : EARTH OR ROCK DRILLING
Subclass 3/02: Rotary drilling (drives used in the borehole E21B 4/00; rotary drilling machines in general B23B) Surface drives for rotary drilling
E21B 3/02
Sub-Class
Stats
- 380 US PATENTS IN FORCE
- 69 US APPLICATIONS PENDING
- 74 Total Patent Owners
- 986 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12247446 | Method and apparatus for moving tubular rotary slips | Feb 29, 24 | Mar 11, 25 | Helmerich & Payne, Inc. |
| 12237674 | Power management at a wellsite | Mar 25, 24 | Feb 25, 25 | Dowell -- A Division of Schlumberger Technology Corporation |
| 12215554 | End effectors for automated pipe handling | Aug 02, 19 | Feb 04, 25 | NATIONAL OILWELL VARCO, L.P. |
| 12215586 | Apparatus for capturing axial force on an inner drive member | Jun 26, 23 | Feb 04, 25 | The Charles Machine Works, Inc. |
| 12209497 | Rotary casing drill | Apr 25, 23 | Jan 28, 25 | ATLAS MANUFACTURING LTD. |
| 12209467 | Pivot joint with a rotatable lower portion | Dec 27, 23 | Jan 28, 25 | Nabors Drilling Technologies USA, Inc. |
| 12196069 | Surface steerable drilling system for use with rotary steerable system | May 12, 20 | Jan 14, 25 | MOTIVE DRILLING TECHNOLOGIES, INC. |
| 12140028 | Cooling for geothermal well drilling | Feb 27, 23 | Nov 12, 24 | EAVOR TECHNOLOGIES INC. |
| 12115472 | Bi-directional spring filter | Oct 23, 23 | Oct 15, 24 | Not available |
| 12116855 | Virtual brake system | Jun 26, 23 | Oct 15, 24 | The Charles Machine Works, Inc. |
| 12119775 | Motor angular position control | Feb 01, 24 | Oct 15, 24 | Dowell -- A Division of Schlumberger Technology Corporation |
| 12110753 | Horizontal directional drill with freewheel mode | Sep 15, 22 | Oct 08, 24 | Vermeer Manufacturing Company |
| 12091958 | Drilling system control for reducing stick-slip by calculating and reducing energy of upgoing rotational waves in a drillstring | Jan 18, 21 | Sep 17, 24 | Dowell -- A Division of Schlumberger Technology Corporation |
| 12065924 | Apparatus for automated slide drilling | Apr 12, 23 | Aug 20, 24 | MOTIVE DRILLING TECHNOLOGIES, INC. |
| 12065890 | Device for transferring data and/or power in a derrick or in a workover rig | Apr 06, 21 | Aug 20, 24 | Think and Vision GmbH |
| 12065892 | Drilling rig with a top drive system operable in a drilling mode and a tripping mode | Nov 02, 22 | Aug 20, 24 | ITREC B.V. |
| 12060791 | Automated filtering and normalization of logging data for improved drilling performance | May 01, 23 | Aug 13, 24 | Magnetic Variation Services, LLC |
| 12055031 | Monitoring drilling vibrations based on rotational speed | Jul 07, 21 | Aug 06, 24 | Halliburton Energy Services, Inc. |
| 12037854 | Controlling a casing running tool | Feb 06, 23 | Jul 16, 24 | Saudi Arabian Oil Company |
| 12037860 | Construction machine for special civil engineering | Mar 11, 22 | Jul 16, 24 | ABI Anlagentechnik-Baumaschinen-Industriebedarf Maschinenfabrik und Vertriebsgesellschaft mbH |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2025/0101,852 | SURFACE STEERABLE DRILLING SYSTEM FOR USE WITH ROTARY STEERABLE SYSTEM | Dec 10, 24 | Mar 27, 25 | Not available |
| 2025/0067,124 | Compact Machine for Carrying Tools | Aug 16, 24 | Feb 27, 25 | Not available |
| 2025/0043,642 | PORTAL PILE DRIVER AND CAST-IN-PLACE PILE CONSTRUCTION METHOD | Jul 09, 24 | Feb 06, 25 | Hainan Zhuodian High Tech Development Co., Ltd. |
| 2025/0034,947 | COOLING FOR GEOTHERMAL WELL DRILLING | Oct 17, 24 | Jan 30, 25 | Not available |
| 2025/0020,032 | FLOW RATE PRESSURE CONTROL DURING MILL-OUT OPERATIONS | Sep 27, 24 | Jan 16, 25 | Not available |
| 2025/0003,326 | DRILLING SYSTEM CONTROL FOR REDUCING STICK-SLIP BY CALCULATING AND REDUCING ENERGY OF UPGOING ROTATIONAL WAVES IN A DRILLSTRING | Sep 13, 24 | Jan 02, 25 | Not available |
| 2024/0418,040 | TOP DRIVE WITH DRAG CHAIN | Jun 13, 24 | Dec 19, 24 | Not available |
| 2024/0418,240 | SYSTEM WITH A PLANETARY GEARBOX | May 09, 24 | Dec 19, 24 | Not available |
| 2024/0401,463 | APPARATUS AND METHODS FOR AUTOMATED SLIDE DRILLING | Jul 03, 24 | Dec 05, 24 | Not available |
| 2024/0353,585 | ADAPTIVE AQUATIC SEISMIC WHILE DRILLING ACQUISITION METHODS AND SYSTEMS | Apr 19, 23 | Oct 24, 24 | Saudi Arabian Oil Company |
| 2024/0352,803 | Resonance-Enabled Drills | Apr 25, 24 | Oct 24, 24 | PEKE Systems Inc. |
| 2024/0344,397 | VIRTUAL BRAKE SYSTEM | Jun 26, 24 | Oct 17, 24 | Not available |
| 2024/0318,521 | DEVICES, SYSTEMS, AND METHODS FOR RETRIEVING INNER TUBES | Mar 08, 22 | Sep 26, 24 | Not available |
| 2024/0301,757 | SYSTEMS AND METHODS FOR MAKE-UP AND BREAK-OUT OF DRILL PIPE | Feb 29, 24 | Sep 12, 24 | Helmerich & Payne, Inc. |
| 2024/0263,529 | CONTROLLING A CASING RUNNING TOOL | Feb 06, 23 | Aug 08, 24 | Not available |
| 2024/0247,545 | CORE DRILL ASSEMBLY | Apr 04, 24 | Jul 25, 24 | Not available |
| 2024/0218,743 | Multi-Tool Boring Systems and Methods of Operating Such Systems | Mar 18, 24 | Jul 04, 24 | ArcByt, Inc. |
| 2024/0200,413 | REAL TIME SHOULDER POINT DETERMINATION IN THREADED CONNECTION MAKE-UP | Dec 14, 22 | Jun 20, 24 | Not available |
| 2024/0175,319 | HORIZONTAL DIRECTIONAL DRILL WITH FREEWHEEL MODE | Feb 02, 24 | May 30, 24 | Not available |
| 2024/0175,321 | HORIZONTAL DIRECTIONAL DRILL WITH FREEWHEEL MODE | Feb 02, 24 | May 30, 24 | Not available |
Top Owners in This Subclass
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Patents Issued To Date - By Filing Year
Average Time to Issuance
- 27 Months (last 2 years Issuances)
- 27 Months (last 5 years Issuances)