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: 156 511 693 patent documents

This week's update (14/06/2024 12:00 CET):

200 241 new documents added

1 026 356 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 0037348 B1 19850814 - SAFETY DEVICE FOR HYDRAULICALLY OPERATED LIFTING DEVICE

Title (en)

SAFETY DEVICE FOR HYDRAULICALLY OPERATED LIFTING DEVICE

Publication

EP 0037348 B1 19850814 (FR)

Application

EP 81420036 A 19810317

Priority

FR 8007238 A 19800321
FR 8013018 A 19800606

Abstract (en)

[origin: ES8202316A1] In this device, with each jack there is associated a pressure detection system comprising two thresholds, the upper one corresponding to the maximum pressure permitted, this double detection making it possible to determine the change in the pressure during the carrying out of a movement, after passage of the first threshold.

IPC 1-7

B66C 23/90

IPC 8 full level

B66C 23/90 (2006.01)

CPC (source: EP US)

B66C 23/90 (2013.01 - EP US); B66C 23/905 (2013.01 - EP US)

Designated contracting state (EPC)

AT BE CH DE GB IT LI LU NL SE

DOCDB simple family (publication)

EP 0037348 A2 19811007; EP 0037348 A3 19820811; EP 0037348 B1 19850814; DE 3171768 D1 19850919; DK 128581 A 19810922; ES 500544 A0 19820201; ES 8202316 A1 19820201; US 4411368 A 19831025

DOCDB simple family (application)

EP 81420036 A 19810317; DE 3171768 T 19810317; DK 128581 A 19810320; ES 500544 A 19810320; US 24166481 A 19810309