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

GPI key values

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EP 3661497 A1 20200610 - RECYCLABLE POLYMERS BASED ON RING-FUSED GAMMA-BUTYROLACTONES

Title (en)

RECYCLABLE POLYMERS BASED ON RING-FUSED GAMMA-BUTYROLACTONES

Title (de)

WIEDERVERWENDBARE POLYMERE AUF DER BASIS VON RINGKONDENSIERTEN GAMMA-BUTYROLACTONEN

Title (fr)

POLYMÈRES RECYCLABLES SUR LA BASE DE GAMMA-BUTYROLACTONES À CYCLES CONDENSÉS

Publication

EP 3661497 A1 20200610 (EN)

Application

EP 18928207 A 20180802

Priority

US 201762540672 P 20170803
US 2018045013 W 20180802

IPC 8 full level

A61K 31/365 (2006.01); A61K 47/30 (2006.01); A61K 47/34 (2017.01); C08G 63/00 (2006.01); C08G 63/78 (2006.01); C08G 63/82 (2006.01)

CPC (source: EP)

C08G 63/08 (2013.01); C08G 63/82 (2013.01); C08G 63/823 (2013.01); C08G 75/26 (2013.01)

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

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3661497 A1 20200610; EP 3661497 A4 20210707

DOCDB simple family (application)

EP 18928207 A 20180802