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: 157 593 259 patent documents

This week's update (02/08/2024 12:00 CET):

108 752 new documents added

1 451 440 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 0086559 A3 19840111 - IMPROVEMENTS RELATING TO HEAT EXCHANGERS

Title (en)

IMPROVEMENTS RELATING TO HEAT EXCHANGERS

Publication

EP 0086559 A3 19840111 (EN)

Application

EP 83300209 A 19830117

Priority

GB 8204547 A 19820216

Abstract (en)

[origin: EP0086559A2] A motor vehicle radiator has fins 11 which are self spacing by virtue of spacing members 14 raised out of the material of the fin. The spacing members each have an elongate shape in cross-section in a plane parallel to the fin which is set at an angle of incidence to the air flow through the radiator, whereby to disturb the air flow and improve the heat transfer efficiency.

IPC 1-7

F28F 1/32

IPC 8 full level

F28F 1/32 (2006.01)

CPC (source: EP)

F28F 1/325 (2013.01); F28F 2240/00 (2013.01)

Citation (search report)

[X] DE 2530064 A1 19770127 - VOLKSWAGENWERK AG
[X] DE 2306562 A1 19740815 - VOLKSWAGENWERK AG
[X] US 3437134 A 19690408 - ODDY EDWARD P
[Y] FR 2474675 A1 19810731 - LUMMUS CO [US]

Designated contracting state (EPC)

DE FR GB IT SE

DOCDB simple family (publication)

EP 0086559 A2 19830824; EP 0086559 A3 19840111; JP S58193092 A 19831110

DOCDB simple family (application)

EP 83300209 A 19830117; JP 2299683 A 19830216