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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: 155 263 406 patent documents

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215 613 new documents added

1 342 057 documents amended

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EP 1068279 A1 20010117 - METHOD FOR INCREASING THE pH VALUE IN ACIDIC SOILS

Title (en)

METHOD FOR INCREASING THE pH VALUE IN ACIDIC SOILS

Title (de)

VERFAHREN ZUR ANHEBUNG DES pH-WERTS IN SAUREN BÖDEN

Title (fr)

PROCEDE PERMETTANT D'AUGMENTER LE pH DANS LES SOLS ACIDES

Publication

EP 1068279 A1 20010117 (DE)

Application

EP 99915700 A 19990324

Priority

DE 19813423 A 19980326
EP 9902009 W 19990324

Abstract (en)

[origin: WO9948998A1] The invention relates to a method for increasing the pH value in acidic soils in which acidic soils are treated with cross-linked polyacrylates or polymethacrylates.

IPC 1-7

C09K 17/16; C09K 17/22

IPC 8 full level

C09K 17/16 (2006.01); C09K 17/22 (2006.01)

CPC (source: EP US)

C09K 17/16 (2013.01 - EP US); C09K 17/22 (2013.01 - EP US)

Citation (search report)

See references of WO 9948998A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

WO 9948998 A1 19990930; EP 1068279 A1 20010117; US 6484441 B1 20021126

DOCDB simple family (application)

EP 9902009 W 19990324; EP 99915700 A 19990324; US 64710700 A 20001211