Description
Class E21B : EARTH OR ROCK DRILLING
Subclass 1/02: Percussion drilling (drives used in the borehole E21B 4/00) Surface drives for drop hammers, e.g. with a cable
E21B 1/02
Sub-Class
Stats
- 48 US PATENTS IN FORCE
- 6 US APPLICATIONS PENDING
- 24 Total Patent Owners
- 134 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 11566494 | Retrievable well assemblies and devices | Jan 26, 18 | Jan 31, 23 | Halliburton Energy Services, Inc. |
| 11293228 | Intelligent blast-hole drill bit with redundant transducer wear sensor and remote recessed reflector antenna | Feb 28, 20 | Apr 05, 22 | REI, INC. |
| 11287060 | Systems and methods for underground pipe installation and soil clearing | Aug 26, 20 | Mar 29, 22 | Zilper Trenchless, Inc. |
| 11034010 | Hydraulic hammering device | Dec 20, 16 | Jun 15, 21 | Furukawa Rock Drill Co., Ltd. |
| 11002127 | Rock drilling device | Aug 19, 19 | May 11, 21 | Sandvik Mining and Construction Oy |
| 10900311 | Object removal enhancement arrangement and method | Jul 26, 18 | Jan 26, 21 | Baker Hughes, a GE company, LLC |
| 10851593 | Drilling tool | Aug 09, 17 | Dec 01, 20 | Mitsubishi Materials Corporation |
| 10788146 | Systems and methods for underground pipe installation and soil clearing | Dec 09, 19 | Sep 29, 20 | Zilper Trenchless, Inc. |
| 10605004 | Intellegent blast-hole drill bit with redundant transducer wear sensor and remote recessed reflector antenna | Jul 26, 17 | Mar 31, 20 | REI, Inc. |
| 10557309 | Self-supporting pneumatic hammer positioner with universal joint | Aug 17, 15 | Feb 11, 20 | R.N.P. INDUSTRIES INC. |
| 10539254 | Systems and methods for underground pipe installation and soil clearing | Feb 08, 19 | Jan 21, 20 | Zilper Trenchless, Inc. |
| 10508749 | Valve of a hydraulically striking device | Aug 19, 15 | Dec 17, 19 | Doofor Oy |
| 10456898 | Damping device for a percussion device, percussion device and rock drilling machine | Jan 16, 15 | Oct 29, 19 | Epiroc Rock Drills Aktiebolag |
| 10385614 | Percussive/rotating drill with blow-out, broken bit, and pressure loss detection systems | Sep 29, 16 | Aug 20, 19 | Park Industries, Inc. |
| 10385616 | Fluid driven drilling motor | Feb 27, 14 | Aug 20, 19 | National Technology & Engineering Solutions of Sandia, LLC |
| 10294724 | Rock drill | Jun 21, 17 | May 21, 19 | Sandvik Mining and Construction Oy |
| 10184294 | Rock drilling machine and use thereof for hindering occurrence and spreading of cavitation bubbles | Mar 28, 11 | Jan 22, 19 | Epiroc Rock Drills Aktiebolag |
| 10012027 | Hose release device, rock drilling unit and method of managing hoses | Mar 11, 15 | Jul 03, 18 | Sandvik Mining and Construction Oy |
| 10000970 | Downhole drilling assembly with motor powered hammer and method of using same | Dec 06, 13 | Jun 19, 18 | National - Oilwell DHT L.P. |
| 9981370 | Breaking device | Jul 01, 15 | May 29, 18 | Sandvik Mining and Construction Oy |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2024/0102,377 | METHOD AND SYSTEM FOR DETECTING A STATE OF A JOINT OF A DRILL STRING | Nov 30, 21 | Mar 28, 24 | Not available |
| 2020/0071,997 | PERCUSSIVE/ROTATING DRILL WITH BLOW-OUT, BROKEN BIT, AND PRESSURE LOSS DETECTION SYSTEMS | Aug 16, 19 | Mar 05, 20 | Not available |
| 2017/0361,445 | ARRANGEMENT IN IMPACT UNIT | Jun 16, 17 | Dec 21, 17 | SANDVIK MINING AND CONSTRUCTION OY |
| 2017/0074,040 | ARRANGEMENT IN ROCK DRILLING MACHINE AND METHOD OF MOUNTING ROCK DRILLING MACHINE | Sep 14, 16 | Mar 16, 17 | SANDVIK MINING AND CONSTRUCTION OY |
| 2015/0144,369 | Hammer Raising Device | Jun 12, 13 | May 28, 15 | SHINWOO HEAVY INDUSTRY CO., LTD. |
| 2015/0122,117 | Device And Method In Respect Of A Rock Drilling Machine And Rock Drilling Machine | May 30, 13 | May 07, 15 | ATLAS COPCO ROCK DRILLS AB |
Top Owners in This Subclass
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Patents Issued To Date - By Filing Year
Average Time to Issuance
- 32 Months (last 2 years Issuances)
- 32 Months (last 5 years Issuances)