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Classification Resources
 
Class   55GAS SEPARATION
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Class 55 is an integral part of this Class (Class 96), as shown by the position of this box, and follows the schedule hierarchy of this Class, retaining all pertinent definitions and Class lines of this class.
[List of Pre Grant Publications for class 55 subclass 282][List of Patents for class 55 subclass 282]282 WITH NONLIQUID CLEANING MEANS FOR SEPARATING MEDIA
 [List of Pre Grant Publications for class 55 subclass 306][List of Patents for class 55 subclass 306]306 AIRCRAFT ANTI-INGESTION MEANS (E.G., AIRCRAFT DEBRIS GUARD)
[List of Pre Grant Publications for class 55 subclass 307][List of Patents for class 55 subclass 307]307 FILTER OR APERTURED DEFLECTOR UNIT DISCONTINUOUS ACROSS GAS FLOW WITHIN FLOW CONDUIT
[List of Pre Grant Publications for class 55 subclass 309][List of Patents for class 55 subclass 309]309 WITH SEPARATING MEDIA BYPASS OR SYSTEM GAS PRESSURE RELIEF (E.G., RUPTURABLE OR DEFORMABLE)
[List of Pre Grant Publications for class 55 subclass 315][List of Patents for class 55 subclass 315]315 PLURAL SERIAL BASICALLY DIVERSE SEPARATING MEDIA
[List of Pre Grant Publications for class 55 subclass 338][List of Patents for class 55 subclass 338]338 WITH RECYCLE MEANS
[List of Pre Grant Publications for class 55 subclass 341.1][List of Patents for class 55 subclass 341.1]341.1 MULTIPLE BAG TYPE FILTERS IN CHAMBER
[List of Pre Grant Publications for class 55 subclass 342][List of Patents for class 55 subclass 342]342 MULTIPLE SEPARATORS, EACH WITH DISCRETE AND LONGITUDINALLY CONFINED GAS INLET OR OUTLET FLOW PATH
[List of Pre Grant Publications for class 55 subclass 351][List of Patents for class 55 subclass 351]351 WITH MEANS FOR ADVANCING CLEAN PORTIONS OF CONTINUOUS OR INDEFINITE LENGTH SEPARATING MEDIA INTO GAS STREAM
 [List of Pre Grant Publications for class 55 subclass 355][List of Patents for class 55 subclass 355]355 WITH LIQUID TRAP SEAL OR VALVE
[List of Pre Grant Publications for class 55 subclass 356][List of Patents for class 55 subclass 356]356 WITH MEANS FACILITATING TRANSPORTABILITY OR HANDLING OF APPARATUS
 [List of Pre Grant Publications for class 55 subclass 358][List of Patents for class 55 subclass 358]358 WITH GROUND SUPPORT MEANS (NONFLOW CONDUCTING)
 [List of Pre Grant Publications for class 55 subclass 359][List of Patents for class 55 subclass 359]359 WITH PORTION OF COVER REMOVABLE
 [List of Pre Grant Publications for class 55 subclass 360][List of Patents for class 55 subclass 360]360 WITH ELECTRICAL GROUNDING MEANS
[List of Pre Grant Publications for class 55 subclass 361][List of Patents for class 55 subclass 361]361 FLEXIBLE OR COLLAPSIBLE BAG TYPE
 [List of Pre Grant Publications for class 55 subclass 383][List of Patents for class 55 subclass 383]383 WITH REMOTE FAN OR PUMP AND UNCONFINED FLOW TO SEPARATOR
[List of Pre Grant Publications for class 55 subclass 385.1][List of Patents for class 55 subclass 385.1]385.1 COMBINED OR CONVERTIBLE
 [List of Pre Grant Publications for class 55 subclass 391][List of Patents for class 55 subclass 391]391 RESTRICTED ANNULAR MIXTURE INLET TO COLLECTOR ZONE AROUND GAS OUTLET CONDUIT ATTACHED BAFFLE
[List of Pre Grant Publications for class 55 subclass 392][List of Patents for class 55 subclass 392]392 WITH GUIDE MEANS EFFECTING REMOVAL OF CONSTITUENT LAYER OUT OF GAS STREAM
[List of Pre Grant Publications for class 55 subclass 400][List of Patents for class 55 subclass 400]400 MOUNTED OR SUPPORTED FOR CONTINUOUS MOTION
[List of Pre Grant Publications for class 55 subclass 410][List of Patents for class 55 subclass 410]410 WITH SEPARATED GAS OUTFLOW CONTROL (E.G., APERTURED CONDUIT)
[List of Pre Grant Publications for class 55 subclass 418][List of Patents for class 55 subclass 418]418 WITH INFLOW GAS CONTROL OR DISTRIBUTION
 [List of Pre Grant Publications for class 55 subclass 421][List of Patents for class 55 subclass 421]421 WITH MEANS FOR LIQUID SEPARATION
 [List of Pre Grant Publications for class 55 subclass 422][List of Patents for class 55 subclass 422]422 SEPARATING MEDIA ADJUSTABLE TO VARIOUS POSITIONS OF USE OR TO NONUSE
 [List of Pre Grant Publications for class 55 subclass 423][List of Patents for class 55 subclass 423]423 MEANS WITHIN GAS STREAM FOR CONDUCTING CONCENTRATE TO COLLECTOR
[List of Pre Grant Publications for class 55 subclass 424][List of Patents for class 55 subclass 424]424 WITH CONCENTRATE BACKFLOW OR RE-ENTRAINMENT PREVENTING MEANS
[List of Pre Grant Publications for class 55 subclass 428][List of Patents for class 55 subclass 428]428 RESIDUE ACCESS, HANDLING OR REMOVING MEANS
[List of Pre Grant Publications for class 55 subclass 434][List of Patents for class 55 subclass 434]434 DEFLECTOR
 [List of Pre Grant Publications for class 55 subclass 434.1][List of Patents for class 55 subclass 434.1]434.1 Subclass 434.1 indent level is 1 Having insulation
[List of Pre Grant Publications for class 55 subclass 434.2][List of Patents for class 55 subclass 434.2]434.2 Subclass 434.2 indent level is 1 With heating or cooling means
 [List of Pre Grant Publications for class 55 subclass 435][List of Patents for class 55 subclass 435]435 Subclass 435 indent level is 1 Wear liners or surface characteristics (e.g., anti-erosion)
 [List of Pre Grant Publications for class 55 subclass 436][List of Patents for class 55 subclass 436]436 Subclass 436 indent level is 1 Removably supported deflector surface
[List of Pre Grant Publications for class 55 subclass 437][List of Patents for class 55 subclass 437]437 Subclass 437 indent level is 1 With gas pump or fan
 [List of Pre Grant Publications for class 55 subclass 440][List of Patents for class 55 subclass 440]440 Subclass 440 indent level is 1 Parallel and continuous nonplanar members (e.g., crimped, corrugated, curved)
 [List of Pre Grant Publications for class 55 subclass 441][List of Patents for class 55 subclass 441]441 Subclass 441 indent level is 1 Concentric, nested conduits with closed and open ends for flow reversal
[List of Pre Grant Publications for class 55 subclass 442][List of Patents for class 55 subclass 442]442 Subclass 442 indent level is 1 Plural deflectors overlapped and spaced serially in gas flow
[List of Pre Grant Publications for class 55 subclass 447][List of Patents for class 55 subclass 447]447 Subclass 447 indent level is 1 Fixed gas whirler or rotator means
[List of Pre Grant Publications for class 55 subclass 462][List of Patents for class 55 subclass 462]462 Subclass 462 indent level is 1 Impingement baffle
 [List of Pre Grant Publications for class 55 subclass 466][List of Patents for class 55 subclass 466]466 WITH SEPARATED NONGASEOUS MATERIAL CONDUCTING OR TREATING MEANS
[List of Pre Grant Publications for class 55 subclass 467][List of Patents for class 55 subclass 467]467 WITH GAS FLOW EFFECTING MEANS
 [List of Pre Grant Publications for class 55 subclass 474][List of Patents for class 55 subclass 474]474 WITH PARTICULATE SOLIDS MOVEMENT DURING USE OR AGITATING MEANS THEREFOR
 [List of Pre Grant Publications for class 55 subclass 475][List of Patents for class 55 subclass 475]475 WITH MEANS ADJUSTABLE TO CONTROL COMPACTNESS OF SEPARATING MEDIA
 [List of Pre Grant Publications for class 55 subclass 476][List of Patents for class 55 subclass 476]476 WITH MEANS INTRODUCING GAS INTO MIDST OF SEPARATING MEDIA
 [List of Pre Grant Publications for class 55 subclass 477][List of Patents for class 55 subclass 477]477 STRANDS OR BRISTLES WITH UNSUPPORTED OR FREE EXTREMITIES (E.G., BRUSH TYPE)
[List of Pre Grant Publications for class 55 subclass 478][List of Patents for class 55 subclass 478]478 WITH SEPARATE FLOW LINE ACCESS MEANS OR FILTER MEDIA PASSAGE MEANS OFFSET TO FLOW PATH
[List of Pre Grant Publications for class 55 subclass 482][List of Patents for class 55 subclass 482]482 TWO OR MORE SEPARATORS (E.G., SPACED FILTERS IN FLOW LINE OR CASING)
[List of Pre Grant Publications for class 55 subclass 490][List of Patents for class 55 subclass 490]490 WITH MEANS SECURING OR RETAINING SEPARATING MEDIA
[List of Pre Grant Publications for class 55 subclass 490.1][List of Patents for class 55 subclass 490.1]490.1 Subclass 490.1 indent level is 1 With heating or cooling means
 [List of Pre Grant Publications for class 55 subclass 491][List of Patents for class 55 subclass 491]491 Subclass 491 indent level is 1 Fastening means pierces or penetrates media
 [List of Pre Grant Publications for class 55 subclass 492][List of Patents for class 55 subclass 492]492 Subclass 492 indent level is 1 Internal frame or support means
 [List of Pre Grant Publications for class 55 subclass 493][List of Patents for class 55 subclass 493]493 Subclass 493 indent level is 1 Hinged or pivoted retainer or clamp on backing frame or in flow line
 [List of Pre Grant Publications for class 55 subclass 494][List of Patents for class 55 subclass 494]494 Subclass 494 indent level is 1 Grid or tray type for bottom support only
[List of Pre Grant Publications for class 55 subclass 495][List of Patents for class 55 subclass 495]495 Subclass 495 indent level is 1 Unit or cohesive sheet-like media in flow line or frame
[List of Pre Grant Publications for class 55 subclass 512][List of Patents for class 55 subclass 512]512 Subclass 512 indent level is 1 Discrete fibrous or particulate solids
 [List of Pre Grant Publications for class 55 subclass 520][List of Patents for class 55 subclass 520]520 SPIRAL FILTER MEDIA
 [List of Pre Grant Publications for class 55 subclass 521][List of Patents for class 55 subclass 521]521 ZIGZAG, CORRUGATED, OR CONICAL
[List of Pre Grant Publications for class 55 subclass 522][List of Patents for class 55 subclass 522]522 SPECIFIC MEDIA MATERIAL
 [List of Pre Grant Publications for class 55 subclass 529][List of Patents for class 55 subclass 529]529 MISCELLANEOUS (E.G., SHAPES)
 
FOREIGN ART COLLECTIONS
 
      FOR000          CLASS-RELATED FOREIGN DOCUMENTS
 
DIGESTS
 
 [List of Pre Grant Publications for class 55 subclass DIG1][List of Patents for class 55 subclass DIG1] DIG1 GRADUATED ELECTROSTATIC FIELD
 [List of Pre Grant Publications for class 55 subclass DIG2][List of Patents for class 55 subclass DIG2] DIG2 VACUUM CLEANER BAGS
 [List of Pre Grant Publications for class 55 subclass DIG3][List of Patents for class 55 subclass DIG3] DIG3 VACUUM CLEANER
 [List of Pre Grant Publications for class 55 subclass DIG5][List of Patents for class 55 subclass DIG5] DIG5 METHODS OF MAKING FILTER
 [List of Pre Grant Publications for class 55 subclass DIG6][List of Patents for class 55 subclass DIG6] DIG6 MAGNETIC COUPLINGS
 [List of Pre Grant Publications for class 55 subclass DIG7][List of Patents for class 55 subclass DIG7] DIG7 BLACK LIQUOR TREATMENT
 [List of Pre Grant Publications for class 55 subclass DIG8][List of Patents for class 55 subclass DIG8] DIG8 BUILT-IN VACUUM CLEANERS
 [List of Pre Grant Publications for class 55 subclass DIG9][List of Patents for class 55 subclass DIG9] DIG9 RADIOACTIVE FILTERS
 [List of Pre Grant Publications for class 55 subclass DIG10][List of Patents for class 55 subclass DIG10] DIG10 RESIDUE BURNED
 [List of Pre Grant Publications for class 55 subclass DIG12][List of Patents for class 55 subclass DIG12] DIG12 POCKET TYPE FILTER
 [List of Pre Grant Publications for class 55 subclass DIG13][List of Patents for class 55 subclass DIG13] DIG13 POLYURETHANE FILTERS
 [List of Pre Grant Publications for class 55 subclass DIG14][List of Patents for class 55 subclass DIG14] DIG14 INERTIA SEPARATOR
 [List of Pre Grant Publications for class 55 subclass DIG15][List of Patents for class 55 subclass DIG15] DIG15 COLD TRAPS
 [List of Pre Grant Publications for class 55 subclass DIG17][List of Patents for class 55 subclass DIG17] DIG17 COMPRESSED AIR WATER REMOVAL
 [List of Pre Grant Publications for class 55 subclass DIG18][List of Patents for class 55 subclass DIG18] DIG18 WORK BENCH
 [List of Pre Grant Publications for class 55 subclass DIG19][List of Patents for class 55 subclass DIG19] DIG19 CRANKCASE VENTILATION
 [List of Pre Grant Publications for class 55 subclass DIG20][List of Patents for class 55 subclass DIG20] DIG20 SPARK ARRESTER
 [List of Pre Grant Publications for class 55 subclass DIG21][List of Patents for class 55 subclass DIG21] DIG21 SILENCER CLEANER
 [List of Pre Grant Publications for class 55 subclass DIG23][List of Patents for class 55 subclass DIG23] DIG23 STEAM SEPARATORS
 [List of Pre Grant Publications for class 55 subclass DIG24][List of Patents for class 55 subclass DIG24] DIG24 VISCOUS COATED FILTER
 [List of Pre Grant Publications for class 55 subclass DIG25][List of Patents for class 55 subclass DIG25] DIG25 AGGLOMERATORS
 [List of Pre Grant Publications for class 55 subclass DIG26][List of Patents for class 55 subclass DIG26] DIG26 BAG COUPLING
 [List of Pre Grant Publications for class 55 subclass DIG27][List of Patents for class 55 subclass DIG27] DIG27 CLEANERS, LIQUID
 [List of Pre Grant Publications for class 55 subclass DIG28][List of Patents for class 55 subclass DIG28] DIG28 CARBURETOR ATTACHED
 [List of Pre Grant Publications for class 55 subclass DIG29][List of Patents for class 55 subclass DIG29] DIG29 AIR CURTAINS
 [List of Pre Grant Publications for class 55 subclass DIG30][List of Patents for class 55 subclass DIG30] DIG30 EXHAUST TREATMENT
 [List of Pre Grant Publications for class 55 subclass DIG31][List of Patents for class 55 subclass DIG31] DIG31 FILTER FRAME
 [List of Pre Grant Publications for class 55 subclass DIG32][List of Patents for class 55 subclass DIG32] DIG32 GASEOUS FLUID CONVEYING
 [List of Pre Grant Publications for class 55 subclass DIG33][List of Patents for class 55 subclass DIG33] DIG33 GAS MASK CANISTER
 [List of Pre Grant Publications for class 55 subclass DIG34][List of Patents for class 55 subclass DIG34] DIG34 INDICATOR AND CONTROLLERS
 [List of Pre Grant Publications for class 55 subclass DIG35][List of Patents for class 55 subclass DIG35] DIG35 RESPIRATORS AND REGISTER FILTERS
 [List of Pre Grant Publications for class 55 subclass DIG36][List of Patents for class 55 subclass DIG36] DIG36 KITCHEN HOODS
 [List of Pre Grant Publications for class 55 subclass DIG37][List of Patents for class 55 subclass DIG37] DIG37 LOUVERS
 [List of Pre Grant Publications for class 55 subclass DIG38][List of Patents for class 55 subclass DIG38] DIG38 TUBULAR COLLECTOR ELECTRODE
 [List of Pre Grant Publications for class 55 subclass DIG39][List of Patents for class 55 subclass DIG39] DIG39 ELECTRETS SEPARATOR
 [List of Pre Grant Publications for class 55 subclass DIG42][List of Patents for class 55 subclass DIG42] DIG42 FOAM FILTER MATERIALS
 [List of Pre Grant Publications for class 55 subclass DIG43][List of Patents for class 55 subclass DIG43] DIG43 KNITTED FILTER MEDIUMS
 [List of Pre Grant Publications for class 55 subclass DIG44][List of Patents for class 55 subclass DIG44] DIG44 PILE AND PILE-TYPE FILTER MEDIUMS
 [List of Pre Grant Publications for class 55 subclass DIG45][List of Patents for class 55 subclass DIG45] DIG45 WOVEN FILTER MEDIUMS
 [List of Pre Grant Publications for class 55 subclass DIG46][List of Patents for class 55 subclass DIG46] DIG46 SPRAY BOOTHS