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: 159 515 718 patent documents

This week's update (01/11/2024 12:00 CET):

154 531 new documents added

1 078 520 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 1688538 A1 20060809 - Heating roll

Title (en)

Heating roll

Title (de)

Heizwalze

Title (fr)

Rouleau chauffant

Publication

EP 1688538 A1 20060809 (DE)

Application

EP 05111363 A 20051128

Priority

DE 102005005104 A 20050204

Abstract (en)

A heating roll with a circumferential surface acted upon by an inductive heater with at least one axial inductor system comprising conductor(s) and a pole shoe system, in which the pole shoe system is a row of pole shoe elements (11; 11a-11l) side-by-side in the axial direction, at least some of which have an adjusting device (21, 23) for changing the distance of the element (11; 11a-11l) from the roller surface (2).

IPC 8 full level

D21G 1/02 (2006.01)

CPC (source: EP)

D21G 1/028 (2013.01)

Citation (search report)

[X] US 4675487 A 19870623 - VERKASALO MATTI [FI]
[X] EP 0337973 A2 19891018 - VALMET PAPER MACHINERY INC [FI]
[A] US 3702912 A 19721114 - GREENBERGER JOSEPH IRWIN

Designated contracting state (EPC)

DE FI SE

DOCDB simple family (publication)

EP 1688538 A1 20060809; DE 102005005104 A1 20060810

DOCDB simple family (application)

EP 05111363 A 20051128; DE 102005005104 A 20050204