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1. WO2006092438 - USE OF WATER-SOLUBLE ALKANE SULFONIC ACIDS FOR INCREASING THE PERMEABILITY OF UNDERGROUND PETROLIFEROUS AND/OR GAS-BEARING CARBONATE ROCK FORMATIONS AND FOR DISSOLVING CARBONATE CONTAMINANTS AND/OR CONTAMINANTS CONTAINING CARBONATES DURING PETROLEUM PRODUCTION

Available information on National Phase entries(more information)
OfficeEntry DateNational NumberNational Status
China 03.03.2006200680007039.X
European Patent Office 08.08.20072006708628Published: 28.11.2007
Granted: 26.11.2008
Mexico 16.08.2007MX/a/2007/009943Published: 28.04.2008
Granted: 10.09.2009
Canada 27.08.20072599211
United States of America 04.09.200711817698Published: 26.06.2008
Granted: 29.12.2009
Eurasian Patent Organization 21.09.2007200701784Published: 28.04.2008
Granted: 30.06.2010
Norway 19.11.200720074283
Russian FederationWithdrawn: 04.10.2007