Field briefing
E21B · Earth or rock drilling
Earth or rock drilling; obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells. Patents classified in CPC E21B, part of Construction and mining.
Dates, owners, statuses and filings come from the published records. Derived views are counted from them. Highlighted text is a plain-English AI reading, written from a patent's title and abstract. Legal statuses and expiry dates are estimates, not legal advice.
Who works on this, where, and with whom
Every company that files in this field, placed in its country. Lines join companies that file together or share inventors; hover one to see why. Pick a company to see its patents, people and news.
Connected industries
Other industries that share patents, companies or citations with Earth or rock drilling.
Newest patents in E21B · Earth or rock drilling
14 patents imported from the European Patent Office; newest published 2026-10-08; most active companies: Baker Hughes A GE Co LLC, Baker Hughes Holdings LLC, BAKER HUGHES, a GE company, LLC.
- SYSTEMS AND METHODS FOR DEPLOYING AND RETRIEVING MAGNETICALLY COUPLED TEMPORARY WIRELINE FIBER FOR BROADSIDE WAVE DETECTION US20260309022A1, published 2026-10-08
- PRESSURE VESSEL ANTENNAS AND CONTAINERS FOR ELECTRONIC CIRCUITRY US20260302588A1, published 2026-10-01
- Dead Short Switch and Method of Use US20260266144A1, published 2026-09-10
- 一种新型通缆定向钻杆 CN122649693A, published 2026-08-28
- METHOD AND SYSTEM FOR ENHANCING SUBSURFACE PERMEABILITY VIA ELECTROMAGNETIC FIELDS AND ELECTROMAGNETICALLY RESPONSIVE PARTICLES US20260251044A1, published 2026-08-27
- BEACON FEEDBACK FOR ISOLATION OF CARRIER SIGNAL US20260254106A1, published 2026-08-27
- 一种电夯钻头 CN122589325A, published 2026-08-18
- HIGH VOLTAGE ELECTRO PULSE ROCK DRILLING EP4709960A1, published 2026-03-18
- LOW ETENDUE LIGHT SOURCE FOR FIBER OPTIC SENSORS IN HIGH TEMPERATURE ENVIRONMENTS SA518400001B1, published 2024-04-07
- LOW ETENDUE LIGHT SOURCE FOR FIBER OPTIC SENSORS IN HIGH TEMPERATURE ENVIRONMENTS EP4202408A1, published 2023-06-28
- LOW ETENDUE LIGHT SOURCE FOR FIBER OPTIC SENSORS IN HIGH TEMPERATURE ENVIRONMENTS EP3430379A1, published 2019-01-23
- Verfahren und Systeme, die integrierte Rechenelemente auf Basis von photonischem Kristall verwenden DE112015006387T5, published 2018-01-04
- LOW ETENDUE LIGHT SOURCE FOR FIBER OPTIC SENSORS IN HIGH TEMPERATURE ENVIRONMENTS US2017268908A1, published 2017-09-21
- Self-cooling environment-friendly energy storage drill CN103470187A, published 2013-12-25
Most active companies
Counted over the newest 14 imported patents in this industry.
- Baker Hughes A GE Co LLC 4 patents
- Baker Hughes Holdings LLC 1 patent
- BAKER HUGHES, a GE company, LLC 1 patent
- Charles Machine Works 1 patent
- Difoggio Rocco 1 patent
- Epiroc Rock Drills AB 1 patent
- ESG Solutions Group Inc 1 patent
- Gunnar Lllp 1 patent
Connected industries
- G02B · Optical elements, systems or apparatus 6 patents in both
- G01D · Measuring not specially adapted for a specific variable 5 patents in both
- G01H · Measurement of mechanical vibrations or ultrasonic, sonic or infrasonic waves 5 patents in both
- H01K · Electric incandescent lamps 5 patents in both
- G01V · Geophysics 4 patents in both