PAQUES B.V.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C02F TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 748
 
  
 
C01B NON-METALLIC ELEMENTS; COMPOUNDS THEREOF277
 
  
 
B01F MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING 141

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5637220 Process for purifying sulphide-containing waste waterNov 29, 95Jun 10, 97[C02F]
5518618 System and process for purifying waste water which contains nitrogenous compoundsDec 12, 94May 21, 96[C02F]
5518619 Process for removing sulphur compounds from waterNov 18, 94May 21, 96[C02F]
5449460 Process for the treatment of water containing sulphur compoundsDec 15, 93Sep 12, 95[C02F]
5366633 Process for the treatment of water containing sulphur compoundsNov 19, 91Nov 22, 94[C02F]
5354545 Process for the removal of sulphur compounds from gasesMay 26, 93Oct 11, 94[C01B]
5338447 BioreactorMar 19, 93Aug 16, 94[C02F]
5256380 Startup openings in a three-phase gaslift loop reactorApr 22, 91Oct 26, 93[B01F]
5196176 Process for the removal of sulfur dioxide from waste gasApr 12, 91Mar 23, 93[C01B, C02F]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2006/0205,051 Process for anaerobic oxidation of methaneAbandonedNov 20, 03Sep 14, 06[C12P, C12N]
7083729 Device and method for cleaning a fluid, such as waterExpiredNov 23, 01Aug 01, 06[C02F]
2004/0151,657 Process for regenerating thiosulphate from a gold leaching streamAbandonedDec 23, 03Aug 05, 04[C01B]
6758886 Three-phase separator and installation for biological purification of effluentExpiredSep 05, 02Jul 06, 04[B01D]
5904850 Settling device for a fluid containing liquid, gas and particulate material, as well as a cleaning device provided herewith and a method for cleaning waste waterExpiredSep 25, 97May 18, 99[.19/, B01D]
5565098 Reactor for the biological treatment of waterExpiredNov 10, 94Oct 15, 96[C02F, B01D]
5431819 Process for the biological treatment of solid organic materialExpiredJun 25, 93Jul 11, 95[C02F]
4765901 Method for purifying waste waterExpiredMar 16, 87Aug 23, 88[C02F]
4758339 Equipment for the anaerobic purification of waste waterExpiredApr 29, 87Jul 19, 88[B01D]
4707254 Apparatus for purifying waterExpiredMar 11, 87Nov 17, 87[B01D]
4652374 Process for anaerobic fermentation of solid wastes in water in two phasesExpiredSep 07, 84Mar 24, 87[C02F]
4622147 Plant for the anaerobic purification of waste waterExpiredMar 03, 86Nov 11, 86[B01D]
4609460 Anaerobic purification equipment for waste waterExpiredJul 23, 85Sep 02, 86[C12P, C02F]
4490258 Sludgeless oxidative biological purification processExpiredMay 19, 83Dec 25, 84[C02F]

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