Description
EARTH OR ROCK DRILLING (mining, quarrying E21C; making shafts, driving galleries or tunnels E21D); OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
E21B
Technology
Sub-Class
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- 504 21506 US PATENTS IN FORCE
- 7735 US APPLICATIONS PENDING
- 7799 Total Patent Owners
- 45033 TOTAL INVENTORS
Subclasses
| Subclass | Title |
|---|---|
| 1/00 | Percussion drilling (drives used in the borehole E21B 4/00) |
| 1/02 | Percussion drilling (drives used in the borehole E21B 4/00) Surface drives for drop hammers, e.g. with a cable |
| 1/04 | Percussion drilling (drives used in the borehole E21B 4/00) Surface drives for drop hammers, e.g. with a cable Devices for reversing the movement of the rod or cable at the surface |
| 1/12 | Percussion drilling (drives used in the borehole E21B 4/00) with a reciprocating impulse member (E21B 1/02, E21B 1/38 take precedence) |
| 1/14 | Percussion drilling (drives used in the borehole E21B 4/00) with a reciprocating impulse member (E21B 1/02, E21B 1/38 take precedence) driven by a rotating mechanism |
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 9,120,261 | Seal molding sleeve | Feb 13, 12 | Sep 01, 15 | CAMERON INTERNATIONAL CORPORATION |
| 9,120,685 | Method for recycling deoiled water using counterflow falling-film evaporators | Dec 12, 11 | Sep 01, 15 | AQUATECH INTERNATIONAL CORPORATION |
| 9,120,962 | Plugging composition using swellable glass additives | Jun 25, 14 | Sep 01, 15 | HALLIBURTON ENERGY SERVICES, INC. |
| 9,120,963 | Delayed water-swelling materials and methods of use | Nov 08, 06 | Sep 01, 15 | SCHLUMBERGER TECHNOLOGY CORPORATION |
| 9,120,966 | Process for disinfecting and stabilizing production water using in-situ hypobromous acid generation | Jul 03, 13 | Sep 01, 15 | |
| 9,121,223 | Drilling system with flow control valve | Jul 11, 12 | Sep 01, 15 | SCHLUMBERGER TECHNOLOGY CORPORATION |
| 9,121,224 | Vibrational tool with tool axis rotational mass and method | Dec 03, 12 | Sep 01, 15 | CNPC USA CORP. |
| 9,121,225 | Drill bit housing vibrator and method | Dec 03, 12 | Sep 01, 15 | CNPC USA CORP. |
| 9,121,226 | Hydraulic activation of mechanically operated bottom hole assembly tool | Jan 24, 14 | Sep 01, 15 | HALLIBURTON ENERGY SERVICES, INC. |
| 9,121,227 | Telescopic riser joint | Sep 02, 10 | Sep 01, 15 | AKER OILFIELD SERVICES OPERATION AS |
| 9,121,228 | Hybrid buoyed and stayed towers and risers for deepwater | Oct 20, 10 | Sep 01, 15 | FLUOR TECHNOLOGIES CORPORATION |
| 9,121,229 | Merlin drilling riser assembly | May 02, 14 | Sep 01, 15 | OIL STATES INDUSTRIES (UK) LTD. |
| 9,121,230 | Restraint systems for hybrid decoupled risers | Dec 21, 11 | Sep 01, 15 | SUBSEA 7 LIMITED |
| 9,121,231 | Subsea hydrocarbon production system | May 08, 14 | Sep 01, 15 | STATOIL PETROLEUM AS |
| 9,121,232 | Hydro-mechanical downhole tool | Mar 07, 12 | Sep 01, 15 | SMITH INTERNATIONAL, INC. |
| 9,121,233 | Mitigation of downhole component vibration using electromagnetic vibration reduction | Feb 26, 13 | Sep 01, 15 | BAKER HUGHES INCORPORATED |
| 9,121,234 | Rig carrier interconnection support and method | Jun 21, 12 | Sep 01, 15 | SUPERIOR ENERGY SERVICES—NORTH AMERICA SERVICES, INC., |
| 9,121,235 | Tubular stand building and racking system | Nov 28, 12 | Sep 01, 15 | T&T ENGINEERING SERVICES, INC. |
| 9,121,236 | Storage, handling and positioning device for drill rods and methods thereof | Dec 28, 12 | Sep 01, 15 | LONGYEAR TM, INC. |
| 9,121,237 | Methods of coating wellbore tools and components having such coatings | Jul 28, 11 | Sep 01, 15 | BAKER HUGHES INCORPORATED |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2015/0246,837 | METHOD FOR TREATING FLUID RESULTING FROM HYDRAULIC FRACTURING WITH LIQUID/SOLID SEPARATION | Mar 03, 15 | Sep 03, 15 | NIJHUIS WATER TECHNOLOGY B.V. |
| 2015/0247,081 | Oleaginous Microbial Lubricants | May 16, 15 | Sep 03, 15 | SOLAZYME, INC. |
| 2015/0247,083 | PROPPANTS FOR HYDROCARBON RECOVERY | Mar 02, 15 | Sep 03, 15 | UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION |
| 2015/0247,364 | DRILLING APPARATUS | Sep 18, 12 | Sep 03, 15 | HALLIBURTON ENERGY SERVICES, INC. |
| 2015/0247,365 | MODIFICATION OF DIAMOND FEEDS FOR IMPROVING POLYCRYSTALLINE DIAMOND CUTTER | Feb 28, 14 | Sep 03, 15 | DIAMOND INNOVATIONS, INC. |
| 2015/0247,366 | Relating to Buoyancy-Supported Risers | Oct 07, 13 | Sep 03, 15 | SUBSEA 7 LIMITED |
| 2015/0247,367 | DRILL PIPE HANDLING SYSTEM | Mar 03, 14 | Sep 03, 15 | FRANK'S INTERNATIONAL, LLC |
| 2015/0247,368 | Releasing a Downhole Tool | Oct 01, 12 | Sep 03, 15 | HALLIBURTON ENERGY SERVICES, INC. |
| 2015/0247,369 | Core Lifter Assembly | Sep 24, 13 | Sep 03, 15 | CT TECH PTY LTD |
| 2015/0247,370 | EXPLOSIVE SEVER SEAL MECHANISM | Feb 28, 14 | Sep 03, 15 | SCHLUMBERGER TECHNOLOGY CORPORATION |
| 2015/0247,371 | SUBSEA XMAS TREE ASSEMBLY AND ASSOCIATED METHOD | Nov 15, 13 | Sep 03, 15 | AKER SUBSEA AS |
| 2015/0247,372 | Drag Enhancing Structures for Downhole Operations, and Systems and Methods Including the Same | Sep 13, 13 | Sep 03, 15 | |
| 2015/0247,373 | Well | May 14, 15 | Sep 03, 15 | METROL TECHNOLOGY LIMITED |
| 2015/0247,374 | PLUGGING DEVICE | Jul 26, 13 | Sep 03, 15 | INTERWELL TECHNOLOGY AS |
| 2015/0247,375 | Frac Plug | Feb 26, 15 | Sep 03, 15 | COMPLETION TOOL DEVELOPMENTS, LLC |
| 2015/0247,376 | Corrodible Wellbore Plugs and Systems and Methods Including the Same | Dec 15, 14 | Sep 03, 15 | |
| 2015/0247,377 | Downhole Power Delivery Tool Powered by Hydrostatic Pressure | Aug 02, 13 | Sep 03, 15 | HALLIBURTON ENERGY SERVICES, INC. |
| 2015/0247,378 | COMPLETING A MULTI-STAGE WELL | May 13, 15 | Sep 03, 15 | |
| 2015/0247,379 | PRESSURE RESPONSIVE DOWNHOLE TOOL HAVING A SELECTIVELY ACTIVATABLE PRESSURE RELIEF VALVE AND RELATED METHODS | Dec 27, 12 | Sep 03, 15 | HALLIBURTON ENERGY SERVICES, INC. |
| 2015/0247,380 | WELLBORE TOOL WITH INDEXING MECHANISM AND METHOD | Sep 18, 13 | Sep 03, 15 | PACKERS PLUS ENERGY SERVICES INC. |
Top Owners in This Class
Top Owners in This Subclass
Applications Filed in This Class - By Year
Applications Filed in This Subclass - By Year
Patents Issued To Date - By Filing Year
Average Time to Issuance
- 32 Months (last 2 years Issuances)
- 32 Months (last 5 years Issuances)
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