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: 157 337 350 patent documents

This week's update (19/07/2024 12:00 CET):

219 431 new documents added

1 247 852 documents amended

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EP 1441947 A1 20040804 - RECIRCULATING REGENERATIVE AIR CYCLE

Title (en)

RECIRCULATING REGENERATIVE AIR CYCLE

Title (de)

REGENERATIVER REZIRKULATIONS-LUFTKREISLAUF

Title (fr)

REMISE EN CIRCULATION DE CYCLE A AIR A RECUPERATION

Publication

EP 1441947 A1 20040804 (EN)

Application

EP 01993217 A 20011108

Priority

US 0146463 W 20011108

IPC 1-7

B64D 13/06; F25B 9/00

IPC 8 full level

B64D 13/06 (2006.01); F25B 9/00 (2006.01)

Citation (search report)

See references of WO 03039953A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family (publication)

EP 1441947 A1 20040804

DOCDB simple family (application)

EP 01993217 A 20011108