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: 159 823 134 patent documents

This week's update (15/11/2024 12:00 CET):

143 307 new documents added

1 003 170 documents amended

GPI key values

Run regular monitoring (e.g. monthly or quarterly) of technical areas or companies

Use built-in charts to visualise technical trends and patenting activity of companies

Choose the data you want to see and download to focus on what you are interested in

Run data quality assessments to measure the risk of incomplete search results

EP 0096460 B1 19860903 - PROCESS FOR IMPROVING AND RETAINING PULP PROPERTIES

Title (en)

PROCESS FOR IMPROVING AND RETAINING PULP PROPERTIES

Publication

EP 0096460 B1 19860903 (EN)

Application

EP 83302424 A 19830429

Priority

CA 402701 A 19820511
US 37711182 A 19820511

Abstract (en)

[origin: EP0096460A2] A method is provided for treating pulp fibres, that have already been curled which method comprises: subjecting the pulp to a heat treatment while the pulp is at a high consistency, thereby to render the curl permanent to subsequent mechanical action. This permanent curl has advantages for papermachine runnability and for increasing the toughness of the finished product.

IPC 1-7

D21C 9/00; D21D 1/20

IPC 8 full level

D21C 9/00 (2006.01)

CPC (source: EP)

D21C 9/007 (2013.01)

Designated contracting state (EPC)

DE FR IT SE

DOCDB simple family (publication)

EP 0096460 A2 19831221; EP 0096460 A3 19840229; EP 0096460 B1 19860903; FI 74052 B 19870831; FI 74052 C 19871210; FI 831626 A0 19830510; FI 831626 L 19831112; NZ 204019 A 19860910

DOCDB simple family (application)

EP 83302424 A 19830429; FI 831626 A 19830510; NZ 20401983 A 19830427