GPI coverage and content

You can use Global Patent Index (GPI) to carry out detailed searches in the EPO's worldwide bibliographic (DOCDB), legal event (INPADOC) and full-text data sets, and download or visualise the search results for statistical analysis.

Current content: 156 978 933 patent documents

This week's update (05/07/2024 12:00 CET):

169 914 new documents added

2 331 667 documents amended

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EP 3242991 B1 20240410 - CONTROL OF MULTIPLE HYDRAULIC CHOKES IN MANAGED PRESSURE DRILLING

Title (en)

CONTROL OF MULTIPLE HYDRAULIC CHOKES IN MANAGED PRESSURE DRILLING

Title (de)

STEUERUNG VON MEHREREN HYDRAULISCHEN DROSSELN BEI BOHRUNGEN MIT DRUCKMANAGEMENT

Title (fr)

RÉGLAGE DE MULTIPLES DUSES HYDRAULIQUES EN FORAGE SOUS PRESSION RÉGULÉE

Publication

EP 3242991 B1 20240410 (EN)

Application

EP 16701218 A 20160105

Priority

US 201562099936 P 20150105
US 2016012134 W 20160105

IPC 8 full level

E21B 21/01 (2006.01)

CPC (source: EP US)

E21B 21/01 (2013.01 - EP); E21B 21/08 (2013.01 - US); E21B 21/085 (2020.05 - EP US)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

BR 112017014564 A2 20180410; BR 112017014564 B1 20220809; EP 3242991 A1 20171115; EP 3242991 B1 20240410

DOCDB simple family (application)

BR 112017014564 A 20160105; EP 16701218 A 20160105