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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: 157 484 516 patent documents

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147 225 new documents added

921 612 documents amended

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EP 0009247 B2 19860430 - CORROSION INHIBITORS FOR ACIDIC SOLUTIONS

Title (en)

CORROSION INHIBITORS FOR ACIDIC SOLUTIONS

Publication

EP 0009247 B2 19860430 (DE)

Application

EP 79103545 A 19790920

Priority

DE 2841641 A 19780925

Abstract (en)

[origin: EP0009247A1] 1. The use of alkyl monophosphonic acids containing from 8 to 10 carbon atoms in admixture with surfactants as corrosion inhibitors against metals in acid solutions.

IPC 1-7

C23F 11/04

IPC 8 full level

C23F 11/04 (2006.01); C23F 11/167 (2006.01); C23G 1/06 (2006.01)

CPC (source: EP)

C23F 11/04 (2013.01)

Designated contracting state (EPC)

AT BE CH FR GB IT NL

DOCDB simple family (publication)

EP 0009247 A1 19800402; EP 0009247 B1 19811230; EP 0009247 B2 19860430; AT E518 T1 19820115; DE 2841641 A1 19800403; DE 2841641 C2 19860703; DK 153850 B 19880912; DK 153850 C 19890130; DK 358779 A 19800326; JP S5544599 A 19800328; JP S6246635 B2 19871002

DOCDB simple family (application)

EP 79103545 A 19790920; AT 79103545 T 19790920; DE 2841641 A 19780925; DK 358779 A 19790828; JP 12213979 A 19790925