28858 ⎘
Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container Upward filtration
Sub-classes:FEEDBACK CONTROLLED GAS LIFT CONVEYANCE OF SLURRY
#2DATE SEED POWDER FOR WATER FILTRATION TREATMENT
#3FILTER MODULE
#4Date seed powder for water filtration treatment
#5Device for advanced degradation of organic wastewater and application thereof
#6FILTER
#7Dispenser
#8Regenerative Media Filtration Apparatus Improvements
#9Up-flow water filtration system
#10GLASS CARTRIDGE FILTERS ESPECIALLY USEFUL AS PART OF WATER-CIRCULATION SYSTEMS OF SWIMMING POOLS OR SPAS
#11Dispenser
#12Energy reduction and monitoring control system for backwashing media systems
#13ENERGY REDUCTION AND MONITORING CONTROL SYSTEM FOR BACKWASHING MEDIA SYSTEMS
#14Pond Filter
#15Fluid filtration system
#16Gas-liquid distribution technique for water or wastewater filters using underdrains
#17ENCAPSULATED WATER FILTER MEDIA ASSEMBLY
#18Apparatus for inhibiting fines carryover
#19Instant Reverse-Flush Aquarium and Fish-Pond Filter
#20Secondary filtration device applicable to a three-phase process
#21Apparatus for inhibiting fines carryover
#22Filter system
#23Filtration gels and related processes
#24Filtered drinking straw