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

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 0784786 A1 19970723 - TRANSMITTER SENSOR

Title (en)

TRANSMITTER SENSOR

Title (de)

SENSOR UND ÜBERTRAGER

Title (fr)

DETECTEUR TRANSMETTEUR

Publication

EP 0784786 A1 19970723 (EN)

Application

EP 95933566 A 19951009

Priority

GB 9420321 A 19941008
GB 9420319 A 19941008
IB 9500890 W 19951009

Abstract (en)

[origin: WO9611390A1] A temperature transmitter in an oil refinery has a thermowell located in a pipe within the petroleum processing section; the thermowell has two thermocouples (1 and 2), for sensing and measuring the petroleum flow. The rate of change of resistance of the thermocouples is regularly checked to estimate any malfunction e.g. failure or deterioration.

IPC 1-7

G01K 7/02

IPC 8 full level

G01K 7/02 (2006.01)

CPC (source: EP)

G01K 7/026 (2013.01)

Citation (search report)

See references of WO 9611389A1

Designated contracting state (EPC)

BE DE DK ES FR GB IT NL SE

DOCDB simple family (publication)

WO 9611390 A1 19960418; AU 3617695 A 19960502; AU 3617995 A 19960502; EP 0784786 A1 19970723; WO 9611389 A1 19960418

DOCDB simple family (application)

IB 9500896 W 19951009; AU 3617695 A 19951009; AU 3617995 A 19951009; EP 95933566 A 19951009; IB 9500890 W 19951009