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Class   159CONCENTRATING EVAPORATORS
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[List of Pre Grant Publications for class 159 subclass 2.1][List of Patents for class 159 subclass 2.1]2.1 SUPERHEATING AND PRESSURE RELEASE
[List of Pre Grant Publications for class 159 subclass 2.2][List of Patents for class 159 subclass 2.2]2.2 Subclass 2.2 indent level is 1 With extruder
 [List of Pre Grant Publications for class 159 subclass 2.3][List of Patents for class 159 subclass 2.3]2.3 Subclass 2.3 indent level is 2 Multistage
[List of Pre Grant Publications for class 159 subclass 3][List of Patents for class 159 subclass 3]3 SPRAY TYPE
[List of Pre Grant Publications for class 159 subclass 4.01][List of Patents for class 159 subclass 4.01]4.01 Subclass 4.01 indent level is 1 Gaseous current
 [List of Pre Grant Publications for class 159 subclass 4.02][List of Patents for class 159 subclass 4.02]4.02 Subclass 4.02 indent level is 2 Combustion product gas
 [List of Pre Grant Publications for class 159 subclass 4.03][List of Patents for class 159 subclass 4.03]4.03 Subclass 4.03 indent level is 2 Antibridging
 [List of Pre Grant Publications for class 159 subclass 4.04][List of Patents for class 159 subclass 4.04]4.04 Subclass 4.04 indent level is 2 Countercurrent
 [List of Pre Grant Publications for class 159 subclass 4.05][List of Patents for class 159 subclass 4.05]4.05 Subclass 4.05 indent level is 2 Intermediate gas outlet or inlet
 [List of Pre Grant Publications for class 159 subclass 4.06][List of Patents for class 159 subclass 4.06]4.06 Subclass 4.06 indent level is 2 Bottom sprayer
 [List of Pre Grant Publications for class 159 subclass 4.07][List of Patents for class 159 subclass 4.07]4.07 Subclass 4.07 indent level is 2 Horizontial sprayer
 [List of Pre Grant Publications for class 159 subclass 4.08][List of Patents for class 159 subclass 4.08]4.08 Subclass 4.08 indent level is 2 Impinging jets
 [List of Pre Grant Publications for class 159 subclass 4.09][List of Patents for class 159 subclass 4.09]4.09 Subclass 4.09 indent level is 2 Multistaging
 [List of Pre Grant Publications for class 159 subclass 4.1][List of Patents for class 159 subclass 4.1]4.1 Subclass 4.1 indent level is 2 Heat recovery
 [List of Pre Grant Publications for class 159 subclass 4.2][List of Patents for class 159 subclass 4.2]4.2 Subclass 4.2 indent level is 2 Spinning sprayer
 [List of Pre Grant Publications for class 159 subclass 4.3][List of Patents for class 159 subclass 4.3]4.3 Subclass 4.3 indent level is 2 Rotary drum with sprayer
 [List of Pre Grant Publications for class 159 subclass 4.4][List of Patents for class 159 subclass 4.4]4.4 Subclass 4.4 indent level is 2 Steam drying or atomizing
[List of Pre Grant Publications for class 159 subclass 5][List of Patents for class 159 subclass 5]5 FILM TYPE
[List of Pre Grant Publications for class 159 subclass 6.1][List of Patents for class 159 subclass 6.1]6.1 Subclass 6.1 indent level is 1 Centrifugal
[List of Pre Grant Publications for class 159 subclass 6.2][List of Patents for class 159 subclass 6.2]6.2 Subclass 6.2 indent level is 2 Wiped film
[List of Pre Grant Publications for class 159 subclass 7][List of Patents for class 159 subclass 7]7 Subclass 7 indent level is 1 Moving-film support
[List of Pre Grant Publications for class 159 subclass 8][List of Patents for class 159 subclass 8]8 Subclass 8 indent level is 2 Gaseous current
[List of Pre Grant Publications for class 159 subclass 11.1][List of Patents for class 159 subclass 11.1]11.1 Subclass 11.1 indent level is 1 Rotary drum or disk
[List of Pre Grant Publications for class 159 subclass 11.2][List of Patents for class 159 subclass 11.2]11.2 Subclass 11.2 indent level is 2 Internal film
 [List of Pre Grant Publications for class 159 subclass 12][List of Patents for class 159 subclass 12]12 Subclass 12 indent level is 2 Inclosing chamber
[List of Pre Grant Publications for class 159 subclass 13.1][List of Patents for class 159 subclass 13.1]13.1 Subclass 13.1 indent level is 1 Moving film
[List of Pre Grant Publications for class 159 subclass 13.2][List of Patents for class 159 subclass 13.2]13.2 Subclass 13.2 indent level is 2 Contacting tube
 [List of Pre Grant Publications for class 159 subclass 13.4][List of Patents for class 159 subclass 13.4]13.4 Subclass 13.4 indent level is 2 With gas wiping
 [List of Pre Grant Publications for class 159 subclass 14][List of Patents for class 159 subclass 14]14 Subclass 14 indent level is 2 Climbing
 [List of Pre Grant Publications for class 159 subclass 15][List of Patents for class 159 subclass 15]15 Subclass 15 indent level is 2 Zigzag
[List of Pre Grant Publications for class 159 subclass 16.1][List of Patents for class 159 subclass 16.1]16.1 GASEOUS BLAST OR CURRENT
 [List of Pre Grant Publications for class 159 subclass 16.2][List of Patents for class 159 subclass 16.2]16.2 Subclass 16.2 indent level is 1 Submerged combustion
 [List of Pre Grant Publications for class 159 subclass 16.3][List of Patents for class 159 subclass 16.3]16.3 Subclass 16.3 indent level is 1 Steam injection
[List of Pre Grant Publications for class 159 subclass 17.1][List of Patents for class 159 subclass 17.1]17.1 MULTIPLE EFFECTS
 [List of Pre Grant Publications for class 159 subclass 17.2][List of Patents for class 159 subclass 17.2]17.2 Subclass 17.2 indent level is 1 Parallel fluid flow
 [List of Pre Grant Publications for class 159 subclass 17.3][List of Patents for class 159 subclass 17.3]17.3 Subclass 17.3 indent level is 1 Variant multistaging
 [List of Pre Grant Publications for class 159 subclass 17.4][List of Patents for class 159 subclass 17.4]17.4 Subclass 17.4 indent level is 1 Contiguous evaporators
 [List of Pre Grant Publications for class 159 subclass 18][List of Patents for class 159 subclass 18]18 Subclass 18 indent level is 1 Superimposed
 [List of Pre Grant Publications for class 159 subclass 19][List of Patents for class 159 subclass 19]19 Subclass 19 indent level is 1 Combined closed and open
[List of Pre Grant Publications for class 159 subclass 20.1][List of Patents for class 159 subclass 20.1]20.1 Subclass 20.1 indent level is 1 Variable or counterflow
 [List of Pre Grant Publications for class 159 subclass 20.2][List of Patents for class 159 subclass 20.2]20.2 Subclass 20.2 indent level is 2 With effect switching means
 [List of Pre Grant Publications for class 159 subclass 21][List of Patents for class 159 subclass 21]21 COMBINED CLOSED AND OPEN PANS
[List of Pre Grant Publications for class 159 subclass 22][List of Patents for class 159 subclass 22]22 CLOSED EVAPORATING CHAMBERS
[List of Pre Grant Publications for class 159 subclass 23][List of Patents for class 159 subclass 23]23 Subclass 23 indent level is 1 Indirectly heated
[List of Pre Grant Publications for class 159 subclass 24.1][List of Patents for class 159 subclass 24.1]24.1 Subclass 24.1 indent level is 2 Regenerative
[List of Pre Grant Publications for class 159 subclass 25.1][List of Patents for class 159 subclass 25.1]25.1 Subclass 25.1 indent level is 2 Rotatable agitator or coil
[List of Pre Grant Publications for class 159 subclass 26.1][List of Patents for class 159 subclass 26.1]26.1 Subclass 26.1 indent level is 2 Heated tube
[List of Pre Grant Publications for class 159 subclass 28.1][List of Patents for class 159 subclass 28.1]28.1 Subclass 28.1 indent level is 2 Heating elements
 [List of Pre Grant Publications for class 159 subclass 29][List of Patents for class 159 subclass 29]29 Subclass 29 indent level is 1 Directly heated
 [List of Pre Grant Publications for class 159 subclass 30][List of Patents for class 159 subclass 30]30 Subclass 30 indent level is 1 Samplers
 [List of Pre Grant Publications for class 159 subclass 31][List of Patents for class 159 subclass 31]31 Subclass 31 indent level is 1 Liquid traps or separators
[List of Pre Grant Publications for class 159 subclass 32][List of Patents for class 159 subclass 32]32 OPEN PANS
 [List of Pre Grant Publications for class 159 subclass 33][List of Patents for class 159 subclass 33]33 Subclass 33 indent level is 1 With rakes
 [List of Pre Grant Publications for class 159 subclass 34][List of Patents for class 159 subclass 34]34 Subclass 34 indent level is 1 Tiltable, removable, or portable
 [List of Pre Grant Publications for class 159 subclass 35][List of Patents for class 159 subclass 35]35 Subclass 35 indent level is 1 Interposed liquid receptacle
 [List of Pre Grant Publications for class 159 subclass 36][List of Patents for class 159 subclass 36]36 Subclass 36 indent level is 1 Steam and furnace heated
 [List of Pre Grant Publications for class 159 subclass 37][List of Patents for class 159 subclass 37]37 Subclass 37 indent level is 1 Steam heated
[List of Pre Grant Publications for class 159 subclass 38][List of Patents for class 159 subclass 38]38 Subclass 38 indent level is 1 Furnace heated
 [List of Pre Grant Publications for class 159 subclass 39][List of Patents for class 159 subclass 39]39 Subclass 39 indent level is 2 Liquid tubes in flue
 [List of Pre Grant Publications for class 159 subclass 40][List of Patents for class 159 subclass 40]40 Subclass 40 indent level is 2 Flues in pan
 [List of Pre Grant Publications for class 159 subclass 41][List of Patents for class 159 subclass 41]41 Subclass 41 indent level is 2 With dampers
 [List of Pre Grant Publications for class 159 subclass 42][List of Patents for class 159 subclass 42]42 STRAINERS OR SKIMMERS
[List of Pre Grant Publications for class 159 subclass 43.1][List of Patents for class 159 subclass 43.1]43.1 FLUID FEED OR DISCHARGE DEVICES
 [List of Pre Grant Publications for class 159 subclass 43.2][List of Patents for class 159 subclass 43.2]43.2 Subclass 43.2 indent level is 1 With alternating operating means
 [List of Pre Grant Publications for class 159 subclass 44][List of Patents for class 159 subclass 44]44 Subclass 44 indent level is 1 Automatic
 [List of Pre Grant Publications for class 159 subclass 45][List of Patents for class 159 subclass 45]45 APPARATUS FOR GRAINING AND SEPARATING CRYSTALS
 [List of Pre Grant Publications for class 159 subclass 46][List of Patents for class 159 subclass 46]46 PRELIMINARY HEATERS AND HEAT ECONOMIZERS
[List of Pre Grant Publications for class 159 subclass 47.1][List of Patents for class 159 subclass 47.1]47.1 PROCESSES
 [List of Pre Grant Publications for class 159 subclass 47.2][List of Patents for class 159 subclass 47.2]47.2 Subclass 47.2 indent level is 1 Involving urea
 [List of Pre Grant Publications for class 159 subclass 47.3][List of Patents for class 159 subclass 47.3]47.3 Subclass 47.3 indent level is 1 Involving waste liquid
[List of Pre Grant Publications for class 159 subclass 48.1][List of Patents for class 159 subclass 48.1]48.1 Subclass 48.1 indent level is 1 Spraying
 [List of Pre Grant Publications for class 159 subclass 48.2][List of Patents for class 159 subclass 48.2]48.2 Subclass 48.2 indent level is 2 Producing liquid product
 [List of Pre Grant Publications for class 159 subclass 49][List of Patents for class 159 subclass 49]49 Subclass 49 indent level is 1 Film
 [List of Pre Grant Publications for class 159 subclass 1.1][List of Patents for class 159 subclass 1.1]1.1 MISCELLANEOUS
 
CROSS-REFERENCE ART COLLECTIONS
 
 [List of Pre Grant Publications for class 159 subclass 900][List of Patents for class 159 subclass 900]900 USING VIBRATORY FORCE
 [List of Pre Grant Publications for class 159 subclass 901][List of Patents for class 159 subclass 901]901 PROMOTING CIRCULATION
[List of Pre Grant Publications for class 159 subclass 902][List of Patents for class 159 subclass 902]902 USING NATURAL HEAT
[List of Pre Grant Publications for class 159 subclass 903][List of Patents for class 159 subclass 903]903 Subclass 903 indent level is 1 Solar
 [List of Pre Grant Publications for class 159 subclass 904][List of Patents for class 159 subclass 904]904 Subclass 904 indent level is 2 Floating solar still
 [List of Pre Grant Publications for class 159 subclass 905][List of Patents for class 159 subclass 905]905 SEWAGE TREATMENT
 [List of Pre Grant Publications for class 159 subclass 906][List of Patents for class 159 subclass 906]906 WICK
 
FOREIGN ART COLLECTIONS
 
      FOR000          CLASS-RELATED FOREIGN DOCUMENTS
 
DIGESTS
 
 [List of Pre Grant Publications for class 159 subclass DIG1][List of Patents for class 159 subclass DIG1] DIG1 ELECTRIC HEAT
 [List of Pre Grant Publications for class 159 subclass DIG2][List of Patents for class 159 subclass DIG2] DIG2 ENTRAINMENT
 [List of Pre Grant Publications for class 159 subclass DIG3][List of Patents for class 159 subclass DIG3] DIG3 FLUIDIZED BED
 [List of Pre Grant Publications for class 159 subclass DIG4][List of Patents for class 159 subclass DIG4] DIG4 FOAM
 [List of Pre Grant Publications for class 159 subclass DIG5][List of Patents for class 159 subclass DIG5] DIG5 FREEZING
 [List of Pre Grant Publications for class 159 subclass DIG6][List of Patents for class 159 subclass DIG6] DIG6 INFRARED
 [List of Pre Grant Publications for class 159 subclass DIG7][List of Patents for class 159 subclass DIG7] DIG7 MAGNETIC COUPLING
 [List of Pre Grant Publications for class 159 subclass DIG8][List of Patents for class 159 subclass DIG8] DIG8 MULTIEFFECT OR MULTISTAGE
 [List of Pre Grant Publications for class 159 subclass DIG9][List of Patents for class 159 subclass DIG9] DIG9 TWO LIQUIDS DRIED SIMULTANEOUSLY
 [List of Pre Grant Publications for class 159 subclass DIG10][List of Patents for class 159 subclass DIG10] DIG10 ORGANIC
 [List of Pre Grant Publications for class 159 subclass DIG11][List of Patents for class 159 subclass DIG11] DIG11 BIOLOGICALS
 [List of Pre Grant Publications for class 159 subclass DIG12][List of Patents for class 159 subclass DIG12] DIG12 RADIOACTIVE
 [List of Pre Grant Publications for class 159 subclass DIG13][List of Patents for class 159 subclass DIG13] DIG13 SCALE
 [List of Pre Grant Publications for class 159 subclass DIG14][List of Patents for class 159 subclass DIG14] DIG14 SOAP
 [List of Pre Grant Publications for class 159 subclass DIG15][List of Patents for class 159 subclass DIG15] DIG15 SPECIAL MATERIAL
 [List of Pre Grant Publications for class 159 subclass DIG16][List of Patents for class 159 subclass DIG16] DIG16 VACUUM
 [List of Pre Grant Publications for class 159 subclass DIG17][List of Patents for class 159 subclass DIG17] DIG17 TWO LIQUIDS
 [List of Pre Grant Publications for class 159 subclass DIG18][List of Patents for class 159 subclass DIG18] DIG18 ACCUMULATOR
 [List of Pre Grant Publications for class 159 subclass DIG19][List of Patents for class 159 subclass DIG19] DIG19 ACID
 [List of Pre Grant Publications for class 159 subclass DIG20][List of Patents for class 159 subclass DIG20] DIG20 ADDITIVE
 [List of Pre Grant Publications for class 159 subclass DIG21][List of Patents for class 159 subclass DIG21] DIG21 COATING
 [List of Pre Grant Publications for class 159 subclass DIG22][List of Patents for class 159 subclass DIG22] DIG22 CONDENSATE FLASHING
 [List of Pre Grant Publications for class 159 subclass DIG23][List of Patents for class 159 subclass DIG23] DIG23 COOLING
 [List of Pre Grant Publications for class 159 subclass DIG24][List of Patents for class 159 subclass DIG24] DIG24 CRITICAL
 [List of Pre Grant Publications for class 159 subclass DIG25][List of Patents for class 159 subclass DIG25] DIG25 DECANT, PRESS, CENTRIFUGE
 [List of Pre Grant Publications for class 159 subclass DIG26][List of Patents for class 159 subclass DIG26] DIG26 ELECTRIC FIELD
 [List of Pre Grant Publications for class 159 subclass DIG27][List of Patents for class 159 subclass DIG27] DIG27 MICROPORES
 [List of Pre Grant Publications for class 159 subclass DIG28][List of Patents for class 159 subclass DIG28] DIG28 POROUS MEMBER
 [List of Pre Grant Publications for class 159 subclass DIG29][List of Patents for class 159 subclass DIG29] DIG29 PEBBLE BED
 [List of Pre Grant Publications for class 159 subclass DIG30][List of Patents for class 159 subclass DIG30] DIG30 DESUPER HEATING
 [List of Pre Grant Publications for class 159 subclass DIG31][List of Patents for class 159 subclass DIG31] DIG31 DEAERATION
 [List of Pre Grant Publications for class 159 subclass DIG32][List of Patents for class 159 subclass DIG32] DIG32 INDIRECT HEAT EXCHANGE
 [List of Pre Grant Publications for class 159 subclass DIG33]