| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
|---|
| 05/04/1999 | US5900212 Hand-held ultraviolet water purification system |
| 05/04/1999 | US5900211 Deactivation of organisms using high-intensity pulsed polychromatic light |
| 05/04/1999 | US5900157 Methods for controlling macroinvertebrates in aqueous systems |
| 05/04/1999 | US5900154 Method and equipment for the purification of a liquid |
| 05/04/1999 | US5900143 Portable container for purifying drinking water |
| 05/04/1999 | US5900141 Water purifier having accumulating means arranged to prevent backward water flow |
| 05/04/1999 | US5900138 Vessel for filtering liquids, particularly drinking water having device for counting occasions of vessel access |
| 05/04/1999 | US5900127 Electrically conductive diamond composite structure; for producing acidic water and alkaline water and forming ozone used for washing semiconductor devices; durable |
| 05/04/1999 | CA2065549C Continuous autocirculation, multiple zone mass transfer apparatus and method |
| 05/03/1999 | CA2557860A1 Composition and method for inhibiting the growth of microorganisms including stabilized sodium hypobromite and various compounds |
| 04/29/1999 | WO1999020667A1 Water-soluble polymer, process for the production of the same, and use thereof as polymeric coagulant |
| 04/29/1999 | WO1999020572A1 Water reclamation system for a vehicle wash system |
| 04/29/1999 | WO1999020569A1 Process for removing selenium from refinery process water and wastewater streams |
| 04/29/1999 | WO1999020568A1 Biodegradable complexing agents for heavy metals |
| 04/29/1999 | WO1999020567A1 Apparatus for electrically producing deionized water |
| 04/29/1999 | WO1999020566A1 Super ozonating water purifier |
| 04/29/1999 | WO1999020393A1 Method for separating specific groups of elements from aqueous solutions |
| 04/29/1999 | WO1999020296A1 Oral cyclosporin formulations |
| 04/29/1999 | WO1999020286A1 A composition for the treatment of legionella pneumophila and a method for such treatment |
| 04/29/1999 | WO1999007642A8 Process and apparatus for water decontamination |
| 04/29/1999 | DE19747825A1 Inhibition of algal growth in open cooling water cycles without harming environment or rivers |
| 04/29/1999 | DE19747518A1 Production of adsorbent from algae, for adsorbing heavy metals from aqueous solution |
| 04/29/1999 | DE19746930A1 Process for improving the biological properties of water, edible oils, and fuels especially by oxygen enrichment |
| 04/29/1999 | DE19746480A1 Specific separation of groups of elements from aqueous solution, useful in analysis, material recovery, removing harmful metal ions and purifying water and waste liquor |
| 04/29/1999 | DE19745984A1 Process to treat rainwater runoff from roofs, roads or car parks |
| 04/29/1999 | DE19745664A1 Preparation of a granulate for the purification of an arsenic-containing liquid especially ground water |
| 04/29/1999 | CA2308191A1 Biodegradable complexing agents for heavy metals |
| 04/29/1999 | CA2307707A1 Process for removing selenium from refinery process water and waste water streams |
| 04/29/1999 | CA2275773A1 Oral cyclosporin formulations |
| 04/28/1999 | EP0911835A1 Method and device for separating 7Li from the primary coolant loop of a nuclear power plant |
| 04/28/1999 | EP0911297A1 Water treatment composition and method of making |
| 04/28/1999 | EP0910594A1 Process for the preparation of aqueous dispersion polymers |
| 04/28/1999 | EP0910552A1 Methods and compositions for controlling biofouling using combinations of an ionene polymer and a salt of dodecylamine |
| 04/28/1999 | EP0910551A1 Ultrapurification method and sampler |
| 04/28/1999 | EP0910461A1 Multi-port, multi-stream valve apparatus |
| 04/28/1999 | EP0910452A1 Waste water grease filter |
| 04/28/1999 | EP0910447A1 Method for the colorimetric quantification of ions |
| 04/28/1999 | EP0910444A1 Device for extracting fresh water |
| 04/28/1999 | EP0844915A4 Water recovery from a septic tank |
| 04/28/1999 | EP0775089B1 Fluid treatment apparatus |
| 04/28/1999 | EP0736162B1 A process and a device in drying of organic and/or unorganic materials |
| 04/28/1999 | CN2316313Y Equipment for treating black liquor |
| 04/28/1999 | CN2316312Y Electromagnetic water treater |
| 04/28/1999 | CN2316311Y Oil-water separator for oil filter |
| 04/28/1999 | CN2315882Y Heat insulation cup |
| 04/28/1999 | CN2315790Y Oxygen dissolving machine |
| 04/28/1999 | CN1215382A Process for biological purification of waste water |
| 04/28/1999 | CN1215350A Method for separating a catalyst by membrane electrodialysis |
| 04/28/1999 | CN1215144A Water refrigerating apparatus |
| 04/28/1999 | CN1215030A Post-dosing centrifugal dewatering technology for slurry machine used in municipal engineering |
| 04/28/1999 | CN1215028A Acid-base sewage PH value self-control drainage treatment technology |
| 04/28/1999 | CN1214949A Permanganate feeder for iron filter |
| 04/28/1999 | CA2234541A1 Removing metals from aqueous waste streams |
| 04/27/1999 | US5898082 Process for the preparation of N-phosphonomethylglycine |
| 04/27/1999 | US5897810 A coagulant comprises a flocculation forming coagulation cores of gypsum having flocculation site for capturing grains of waste water, a porous calcium carbonate carriers captured in first flocculation sites, having second flocculation sites |
| 04/27/1999 | US5897785 Dilution with water; irradiation with ultraviolate radiation |
| 04/27/1999 | US5897784 Treatment of swimming pool water |
| 04/27/1999 | US5897780 Mixing with brine; separation by reverse osmosis using semipermeable membrane |
| 04/27/1999 | US5897778 Using a absorbent filter |
| 04/27/1999 | US5897777 Waste water treatment system |
| 04/27/1999 | US5897770 Center core cartridge feeder insert |
| 04/27/1999 | US5897765 Electrochemical treatment method and device for softening water |
| 04/27/1999 | US5897757 Laminated sheets |
| 04/27/1999 | US5897689 Method for binding resin and tar substances in wet-cleaning and wet precipitation systems |
| 04/22/1999 | WO1999019726A1 Hydrogen sulfide analyzer |
| 04/22/1999 | WO1999019523A1 A fibrous system including wicking fibers impregnated with extractant for continuously capturing metals from an aqueous stream |
| 04/22/1999 | WO1999019517A1 Analysis of nicked dna by matched ion polynucleotide chromatography |
| 04/22/1999 | WO1999019263A1 Manure treatment system |
| 04/22/1999 | WO1999019261A1 Method for physico-chemical treatment of water and plant for implementing same |
| 04/22/1999 | WO1999019260A1 Method and apparatus for reduction of flow resistance in pipes and ducts |
| 04/22/1999 | WO1999019257A2 Processes and systems for treating wastewater effluent |
| 04/22/1999 | WO1999019053A1 Methods and devices for producing solid subassemblies of fluidic particulate matter |
| 04/22/1999 | WO1999018790A1 Disinfectant and method of making |
| 04/22/1999 | DE19825033A1 Semiconductor substrates are treated with an ozone- or active oxygen-containing medium |
| 04/22/1999 | DE19812588C1 Scale-inhibiting per:carboxylic acid solutions |
| 04/22/1999 | DE19746343A1 Method for photo chemical and biological reactions |
| 04/21/1999 | EP0909739A2 Electrolytic device for the production of an aqueous solution of sodium hypochlorite |
| 04/21/1999 | EP0909447A1 Method for cesium removal from radioactive waste liquids and method for producing hexacyanoferrates |
| 04/21/1999 | EP0909335A1 Treatment of fly ash/apc residues including lead salt recovery |
| 04/21/1999 | EP0909261A1 Heating and reaction system and method for superchemical treatment of a liquid stream |
| 04/21/1999 | EP0909260A1 Method for sanitizing swimming pools and recirculating water systems |
| 04/21/1999 | EP0876299A4 Liquid sterilisation apparatus |
| 04/21/1999 | EP0810976B1 Purification system for raw water, in particular for waste water |
| 04/21/1999 | EP0790960A4 Wastewater treatment method and plant |
| 04/21/1999 | CN2315581Y Waste water treating pot for waste water treating equipment |
| 04/21/1999 | CN2315115Y Quality quarantee device for water of drinking machine |
| 04/21/1999 | CN2315114Y Generator for ion water |
| 04/21/1999 | CN2315113Y Reverse osmosis pure water machine |
| 04/21/1999 | CN1214701A Ion exchange polymers for anion separations |
| 04/21/1999 | CN1214535A Method for treating semiconductor substrates |
| 04/21/1999 | CN1214322A Preparation method and equipment of Liuhuan function water |
| 04/21/1999 | CN1214321A Reator apparatus for treating water in iron removal system |
| 04/21/1999 | CN1214320A Scale-less waste water evaporating and concentrating process |
| 04/21/1999 | CN1214204A Algaecide powder for river, lake and pool |
| 04/21/1999 | CN1043079C Device for analyzing fluid medium |
| 04/20/1999 | US5895796 Ion adsorbent |
| 04/20/1999 | US5895577 Decomposed biologically by bacteria and exposed to sonic radiation to split cell walls of the microorganisms, improved, reduces residual biological solid sludge |
| 04/20/1999 | US5895576 Method and apparatus for wastewater treatment by chemical reaction of reactive filler and propagated microorganisms |
| 04/20/1999 | US5895565 Integrated water treatment control system with probe failure detection |
| 04/17/1999 | CA2250552A1 Scum removal system for sewage clarification tank |