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 0329849 B1 19921125 - VARIABLE SHOCK WAVES ENERGY THROUGH AN ADAPTED OHMIC CONSUMPTION

Title (en)

VARIABLE SHOCK WAVES ENERGY THROUGH AN ADAPTED OHMIC CONSUMPTION

Publication

EP 0329849 B1 19921125 (DE)

Application

EP 88121349 A 19881221

Priority

DE 3804993 A 19880218

Abstract (en)

[origin: EP0329849A1] The invention relates to a device for the contactless disintegration of concretions in bodies of living organisms, with an underwater spark gap, a shockwave generator and a switch, in which an ohmic resistor (10) is provided as a load in series with the underwater spark gap, in order to convert excess energy into heat there. <IMAGE>

IPC 1-7

A61B 17/22

IPC 8 full level

A61B 17/22 (2006.01); G10K 15/06 (2006.01)

CPC (source: EP US)

G10K 15/06 (2013.01 - EP US)

Designated contracting state (EPC)

CH ES FR IT LI

DOCDB simple family (publication)

EP 0329849 A1 19890830; EP 0329849 B1 19921125; DE 3804993 C1 19890810; ES 2037190 T3 19930616; JP H01291853 A 19891124; US 5146912 A 19920915

DOCDB simple family (application)

EP 88121349 A 19881221; DE 3804993 A 19880218; ES 88121349 T 19881221; JP 1607589 A 19890125; US 59822590 A 19901016