What follows are the subclasses from one class of the Manual of Classification for US patents. As you scroll through the list and encounter a class/subclass of interest, you can jump back to the top and retrieve patent titles by entering the class/subclass in the box below.
Enter a class/subclass code here to get a list of patent titles. Use
any of the following forms:
363-131 121-55A 14-.5
that is, no embedded spaces, class and subclass seperated by a dash, and any
subclass letters capitalized. Currently Design Patent titles (those in the
classes of the form Dxx.yy) are not retreivable.
Class Number: 422 Class Title: CHEMICAL APPARATUS AND PROCESS DISINFECTING, DEODORIZING, PRESERVING, OR STERLIZING Subclass Subclass Number Title 1 PROCESS-DISINFECTING, PRESERVING, DEODORIZING, OR STERILIZING 2 .Step of warning or decreasing hazard of process 3 .Process control in response to analysis 4 .A gas is substance acted upon 5 .Deodorizing 6 .Affecting structure, article, etc., submerged in marine environment 7 .Maintaining environment nondestructive to metal 8 ..Using protective article (e.g., antitarnish fabric, etc.) 9 ..Using gaseous preservative, preservative added to gaseous phase of environment, or maintaining gaseous phase nondestructive 10 ...Manipulating gaseous environment for preservative purpose 11 ...Steam environment 12 ..Aqueous acid environment 13 ..Aqueous alkali environment 14 ..Essentially pure water environment 15 ...Using organic compound having phosphorus 16 ...Using organic nitrogen compound other than ammonium salt 17 ...Using organic carboxylic acid or salt thereof 18 ...Using inorganic silicon or phosphorus compound 19 ...Using heavy metal or compound thereof 20 .Using sonic or ultrasonic energy 21 .Using microwave energy 22 .Using direct contact with electrical or electromagnetic radiation 23 ..In atmosphere other than air 24 ..Ultraviolet 25 .Including additional step of preventing damage to sealed container 26 .Using direct contact steam to disinfect or sterilize 27 ..And additional disinfecting or sterilizing agent 28 .Using disinfecting or sterilizing agent 29 ..In situ generation of agent other than aldehyde or glycol 30 ..And removing the agent by chemical reaction or sorption 31 ..And recovering or reusing the agent 32 ..Treating bulk material 33 ..With positive pressure or vacuum 34 ..Using alkylene oxide 35 ..Using cyanide 36 ..Using aldehyde 37 ..Using halogen or halogen-containing compound 38 .Using fluent heat transfer medium other than air 39 .By sudden release of pressure 40 .Process of storage or protection 41 ..Of liquid 42 ...By preventing evaporation 43 ....Of water 44 BLOOD TREATING DEVICE FOR TRANSFUSIBLE BLOOD 45 .Oxygenator 46 ..Including integral heat-exchange meanss 47 ..Bubble or foam producing 48 ..Membrane 49 INCLUDING MEANS FACILITATING PART REPLACEMENT OR REPAIR OTHER THAN SOLID, EXTENDED SURFACE, FLUID CONTACT MEANS 50 ANALYZER, STRUCTURED INDICATOR, OR MANIPULATIVE LABORATORY DEVICE 51 .Calorimeter 52 .Chemiluminescent 53 .Corrosion tester 54 .Flame ionization detector 55 .Structured visual or optical indicator per se 56 ..Having reagent in absorbent or bibulous substrate 57 ..Having coated reagent 58 ..In holder or container having special form 59 ...Column 60 ....Having plural-layered material 61 .Test package or kit 62 .Automatic analytical monitor and control of industrial process 63 .Sample mechanical transport means in or for automated analytical system 64 ..Means is turntable (circular) 65 ..Means is conveyor and rack 66 ..Means is moving tape or band 67 ..With specific analytical program control means 68.1 .Means for analyzing liquid or solid sample 69 ..Sorption testing 70 ...Liquid chromatograhpy 71 ...With radioactive material 72 ..Including centrifuge 73 ..With coagulometer for agglutination, clotting, or prothrombin, or for particle (e.g., cell etc.) counting, or volume or characteristics determination 74 ..Dairy tester 75 ..Including titrator 76 ...Conductiometric type 77 ....With integrating or differentiating means 78 ..Including means for pyrolysis, combustion, or oxidation 79 ...Biological, chemical, or total oxygen demand (i.e., BOD, COD, TOD) 80 ...And means directly analyzing evolved gas 81 ..Automated system with sample fluid pressure transport means 82 ...And means segmenting fluid material 82.01 ..Measuring electrical property 82.02 ...Resistance or conductivity 82.03 ...Ion selective electrode 82.04 ....Dissolved gas 82.05 ..Measuring optical property by using ultra-violet, infra-red or visible light 82.06 ...Optode or optrode 82.07 ....Fluorescence 82.08 ...Fluorescence 82.09 ...Absorbance or transmittance 82.11 ...Waveguides 82.12 ..Measuring temperature 82.13 ..Measuring pressure 83 .Means for analyzing gas sample 84 ..Breath tester 85 ...Based on color changee 86 ..Including means reacting gas with color indicator 87 ...Strip indicator 88 ..Including means for adsorbing or absorbing gas into or onto liquid or solid media 89 ...Gas chromatography 90 ...With conductiometric detector 91 ...With photometric detector 92 ...With volumetric detector 93 ..Including means dividing sample stream into plural parallel segments having diverse treating means and the analytical result compared or combined 94 ..Combustible gas detector 95 ...With thermoelectric detector 96 ....Wheatstone bridge 97 .....With specific coating on bridge element 98 ..Analysis based on electrical measurement 99 .Miscellaneous laboratory apparatus and elements per se 100 ..Pipette or other volumetric fluid transfer means 101 ..Including means for separating a constituent, e.g., filter, condenser, extractor, etc. 102 ..Container 103 ..Valve or connector structure 104 ..Holder, support, housing, or hood 105 CONTROL ELEMENT RESPONSIVE TO A SENSED OPERATING CONDITION 106 .Responsive to liquid level 107 .Control element directly mechanically linked to separate sensor 108 .Control element responds as a function of a variable signal from a sensor 109 ..Controls heat transfer 110 ..Controls flow rate of a material to or from a contact zone 111 ...Material is an input to contact zone 112 .Control element is fluid pressure sensitive 113 ..Pressure-relief valve (e.g., pop-off valve) or check valve 114 .Control element is a binary responsive valve 115 ..Valve diverts flow from a contact zone 116 .Sensed condition is operating time and control is operation sequencer 117 WITH SAFETY FEATURE 118 .Preventing opening of closure of pressurized apparatus at unsafe pressure 119 WITH INDICATING, SIGNALLING, RECORDING, SAMPLING, OR INSPECTION MEANS 120 FOR DEODORIZING OF, OR CHEMICAL PURIFICATION OF, OR GENERATION OF, LIFE SUSTAINING ENVIRONMENTAL GAS 121 .With means exposing gas to electromagnetic wave energy or corpuscular radiation 122 .Including solid, extended surface, fluid contact reaction means (e.g., Raschig rings, particulate or monolithic catalyst, etc.) 123 .Including means adding material into environmental gas 124 ..And mechanical means creating forced draft at addition site 125 ..With material-heating means 126 ...Material is combusted 127 SHOCK OR SOUND WAVE 128 .Including super or ultra sonic energy generation means 129 CHEMICAL REACTOR 129.1 .Soap makingg 130 .Bench scale 131 .Organic polymerization 132 ..Closed loop 133 ..Generating foamed plastic 134 ..Including plural sequential reaction stages 135 ..Including reactant agitating means in reaction chamber 136 ...And means rotatably mounting reaction chamber 137 ...Horizontal reaction chamber with screw or worm agitator 138 ..With heat exchanger for reaction chamber or reactants located therein 139 .Fluidized bed 140 ..With liquid present 141 ..Plural reaction beds 142 ...Sequentially arranged 143 ..Including specific wind box or particulate matter support grid 144 ..Including means to strip reaction mass from, or to regenerate, the particulate matter (including fluidized bed regenerators per se) 145 ..And means providing flow of particulate matter into or out of reaction chamber 146 ..With heat exchange means affecting reaction chamber or reactants located therein 147 ..And means mechanically separating and removing particulate bed material from fluid effluent 148 .Ammonia synthesizer 149 .With means simultaneously carrying out conjugated reactions within single reactor 150 .Pigment or carbon black producer 151 ..With means injecting quench stream into reaction chamber downstream of reaction site 152 ..With particulate product collecting surface and means mechanically removing product therefrom 153 ...Moving collecting surface 154 ....Rotary collecting surface 155 .....Disk or plate 156 ..With plural sequential reaction zones or chambers 157 ...With movably or removably mounted plug means for converting reactor from (N) to (N+1) reaction stages 158 ..Vapor phase reaction type 159 .For radioactive reactant or product 160 .Inorganic sulfur acid or anhydride producing type 161 ..Acid is final product 162 .Inorganic hydrator 163 .Explosives synthesizer 164 .Solid reactant type (i.e., absence of fluid reactants) 165 ..Including ignition means for reactant 166 ...Electrically actuated 167 ..Including reactor cooling means surrounding reactor 168 .Waste gas purifier 169 ..Including means providing sequential purification stages 170 ...Plural chemical reaction stages 171 ....Solid, extended surface, fluid contact type 172 ....And means downstream of a stage for injecting a reactant into waste gas for interreaction in subsequent stage 173 ..With heat exchanger for reaction chamber or reactants located therein 174 ...Electrical typee 175 ...Regenerative heat sink 176 ..Including waste gas flow distributor upstream of reaction site and within reaction chamber modifying velocity profile of gas 177 ..Including solid, extended surface, fluid contact reaction means, e.g., inert Raschig rings, particulate absorbent, particulate or monolithic catalyst, etc. 178 ...And contact regenerating means or means for cleaning an internal surface of the reaction chamber 179 ...Fixed bed with resilient or differential thermal expansion compensating bed support means 180 ...Unitary (i.e., nonparticulate) contact bed (e.g., monolithic catalyst bed, etc.) 181 ...Fixed annularly shaped bed of contact material and means directing gas therethrough substantially perpendicular to longitudinal axis of bed 182 ..Including means injecting combustion fuel into reaction chamber in direct contact with waste gas 183 ...And means mixing combustion fuel with waste gas upstream of reaction site 184 .For chemically destroying or disintegrating solid waste, other than burning alone 185 .For chemical recovery of chemicals from waste paper making liquor 186 .With means applying electromagnetic wave energy or corpuscular radiation to reactants for initiating or perfecting chemical reaction 186.01 ..Magnetic 186.02 ...Object protection 186.03 ...With electrical discharge 186.04 ..Electrostatic field or electrical discharge 186.05 ...Treating surface or solid substrate 186.06 ....Surface in metal 186.07 ...Ozonizers 186.08 ....With preparatory or product-treating means 186.09 .....With drying means 186.1 .....With filtering or particle removal means 186.11 .....With cooling, compression, condensation, or liquefying means 186.12 ....With subsequent use means 186.13 ....With electrode moving means 186.14 ....With fluent reactant flow control means 186.15 ....With current control or special electrical supply means 186.16 .....With pulse generating means 186.18 ....Cylindrical electrode 186.19 .....With heating or cooling means 186.2 ....With heating or cooling means 186.21 ...Arc or spark discharge means 186.22 ....With electrode or reaction space heating or cooling means 186.23 ....With preparatory or product-treating means 186.24 .....With nitrogen fixation means 186.25 .....With cooling or pressurizing means 186.26 ....With electrode moving means 186.27 .....With current control means 186.28 ....With current control means 186.29 ...With RF input means 186.3 ..With ultraviolet radiation generating meanss 187 .Combined 188 .Including plural reaction stages 189 ..And means providing discrete sequential reaction stages, e.g., train, etc. 190 ...Plural solid, extended surface, fluid contact reaction stages each containing, e.g., inert Raschig rings, particulate sorbent, particulate or monolithic catalyst, etc. 191 ....Superimposed reaction stages in single reaction chamber 192 ....At least one reaction stage formed of fixed, annularly shaped bed of contact material and means directing reaction stream therethrough substantially perpendicular to longitudinal axis of bed 193 ...Reaction stages located within single reaction chamber 194 ....And means downstream of a stage for internally injecting a reactant into a reaction stream for interreaction in a subsequent stage, or injecting an internal quench stream into reaction stream passing between stages 195 ....Means within reaction chamber redistributing reaction stream as it passes between adjacent stages 196 ..Including plural parallel reaction stages with each stage in form of a reaction tube 197 ...Tubular stages in single reaction chamber 198 .Including heat exchanger for reaction chamber or reactants located therein 199 ..Electrical type 200 ..Indirect heat-exchange tube within reaction chamber with a nonreactant heat exchange fluid passing therethrough 201 ...Tube and shell type 202 ..Heat-exchange jacket surrounding reaction chamber 203 ...Including fluid-transfer means connecting chamber to heat-exchange jacket 204 ...Means associated with jacket providing combustion gas as heat-exchange medium 205 ...Including baffle or stirring means disposed within jacket or chamber, the baffle means within chamber connected directly to wall thereof 206 ..Regenerative heat sink 207 ..Means injecting internal quench stream into reaction stream downstream of reaction stage 208 ..Apparatus operates at positive pressure 209 .Including means rotating reaction chamber during use 210 ..And means wiping or scraping interior surface of reaction chamber 211 .Including solid, extended surface, fluid contact reaction means, e.g., inert Raschig rings, particulate absorbent, particulate or monolithic catalyst, etc. 212 ..With means removing and recovering product from extended surface contact material 213 ..Particulate contact material type and means providing flow of particulate material into or out of reaction chamber with reactants or products 214 ...Transfer line type reaction chamber 215 ...And internal mixing means 216 ..Compact bed of particulate, fluid contact material and means providing gravity flow of material within bed 217 ..And means upstream of extended surface, fluid contact means removing particulate impurities from reactant stream 218 ..Fixed annularly shaped bed of contact material and meanss directing reactant therethrough substantially perpendicular to longitudinal axis of bed 219 ..And means loading contact material into, or unloading contact material from, reactor or means providing internal contact material reservoir 220 ..And reactant flow distributor upstream of contact means and within reaction chamber modifying velocity profile of reactant flow 221 ..Fixed contact bed type with resilient or differential thermal expansion compensating bed support means 222 ..Unitary (i.e., nonparticulate) contact bed, (e.g., monolithic catalyst bed, etc.) 223 ..With contact material regenerating means per se or combined with reactor 224 .Including internal mixing or stirring means 225 ..Mechanical type stirring means 226 ...In positive pressure reactor 227 ...Including a draft tube for internal recirculation 228 ...Including flow directing baffle attached directly to reaction chamber wall 229 ...Longitudinally extending spiral stirring means 230 ..Thermosyphon or differential density mixing means, e.g., means internally recycling reaction mass via differential density pumping, etc. 231 ...Gas sparger type mixing means submerged in liquid reactant 232 .Including solid reactant and means charging solids into, or dischanging solids from, reaction chamber 233 ..Having both charge and discharge means along with means conveying solids therebetween located within reaction chamber 234 .Including external recycle loop 235 ..And means heating or cooling loop or reaction mass located therein 236 .Including means separating reaction chamber into plural reactant containing compartments and means moving reactant therebetween 237 ..Movably mounted container type separating means and means moving same 238 ..Solid reactant containing perforated or porous container type separating means 239 .Reaction chamber includes at least one perforated, porous, or semipermeable wall and is adapted for holding solid reactant 240 .Including specific material of construction 241 ..Reactor liner 242 .Positive pressure type 243 PHYSICAL TYPE APPARATUS 244 .Including serially disposed vaporizing heating means and solid material deposition means maintained at a temperature lower than said heating means 245 .Crystallizer 246 ..Including shaping surface 247 ..Particulate feed source spaced from the substrate 248 ..Including crucible 249 ...Seed puller 250 ..Crucible-free zone refining 251 ..Including means separating and conveying crystals to a melting zone 252 ..Hydraulic classifier with crystallizer 253 ..Including feed compartment for introducing nutrientt 254 ..Movable crystallizer or scraping means 255 .Means separating or dissolving a material constituent 256 ..Liquid-liquid contact means 257 ...Including pulsator, adjustable plates, or plural inlets, e.g., spraying, etc. 258 ...Including rotating chamber or rotating member within chamber, e.g., mixer settler, etc. 259 ....Having rotating member within chamber 260 ...Including heating and cooling means 261 ..Liquid-solid contact means 262 ...Sulfur extraction 263 ...Including monolithic nonporous body of solute 264 ...Including means restricting solvent contact to one end of body of solute 265 ...Buoyant holder 266 ...Manual or mountable holder, e.g., soap holder, etc. 267 ...Including means to remove solids from a filter 268 ...Conveyor support for solid material during contact, e.g., bucket, etc. 269 ...Including rotating member 270 ....Member is container 271 .....Including internal rotating member 272 .....Partitions divide container 273 ....Member conveys material into and out of container, e.g., screw propeller, etc. 274 ...Including perforated member which is nonlinear or inclined with respect to the major axis of container 275 ...Including parallel perforated members perpendicular to, or parallel to, major axis of container 276 ...Side wall of holder perforated 277 ....Perforations of holder form inlet for solvent 278 ...Including plural orifice inlet, or deflector adjacent inlet for solvent flow 279 ....Having inlet submerged within body of a solid solute 280 ...Solvent vapor condenser 281 ...Means recirculating solvent 282 ...Including bypass 283 ...Including dip tube for inlet or outlet of fluid solvent 284 ...Internal heater, e.g., steam coil, etc. 285 ..And heating means 286 ...Including mechanical comminuting or conveying means 287 ....Within treating vessel 288 ...Including means removing vapor from treated material 289 ....And direct contact heating fluid means within separating or dissolving chamber vessel 290 ....And indirect contact heating fluid means in separating or dissolving chamber 291 .Combined 292 .Apparatus for treating solid article or material with fluid chemical 293 ..Fluid having simultaneous diverse function 294 ..Including flexible or collapsible treating chamber 295 ..Including pressure treating chamber (above ambient) 296 ...Fluid pressure maintains closure or seal 297 ...And rack, support or handling means 298 ...And vaporizer, e.g., boiler, etc. 299 ....Constituting treating chamber 300 ..Including rack, support or handling meanss 301 ...Apparatus closure operates means immersing article or material in liquid chemical 302 ...For treating container or covers therefor 303 ....Container is inverted 304 ....Including endless conveyor 305 .Including gas generating means 306 .Including means for adding a material to a gas 307 .Heat treating vessel with heating means 308 ..Including multiple stages 309 ..Including comminuting, kneading, or surface-wiping means interior or vessel 310 ELEMENTS OR ADJUNCTS 311 .Bed support means (e.g., support grid or plate for supporting particulate bed of contact material, etc.) 312 .Tube element containing extended surface contact reaction means (e.g., a tube internally coated or packed with a catalyst, etc.) * ****************************** * CROSS-REFERENCE ART COLLECTION RELATING TO SUBCLASSES 1 THROUGH 43 * ****************************** 900 DECREASING POLLUTION OR ENVIRONMENTAL IMPACT * ****************************** * CROSS-REFERENCE ART COLLECTIONS * ****************************** 901 POLYMER DISSOLVER 902 SODIUM CHLORIDE AND POTASSIUM CHLORIDE DISSOLVER 903 RADIOACTIVE MATERIAL APPARATUS 904 NITROGEN FIXATION MEANS 905 MISCELLANEOUS LIQUID STERILIZATION MEANS 906 PLASMA OR ION GENERATION MEANS 907 CORONA OR GLOW DISCHARGE MEANS