| Class 423 | CHEMISTRY OF INORGANIC COMPOUNDS |
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![[List of Pre Grant Publications for class 423 subclass 700]](../as.gif) | ![[List of Patents for class 423 subclass 700]](../ps.gif) | 700 | ZEOLITE |
| | 701 |  Organic compound used to form zeolite |
| | 709 | Seed used |
| | 710 | Aging to induce zeolite formation from inorganic mixture |
| | 712 | Synthesized from naturally occurring product |
| | 713 | Isomorphic metal substitution |
| | 716 | With change of synthesized zeolite morphology |
| | 718 | Structure defined X-ray diffraction pattern |
| | 1 | TREATING MIXTURE TO OBTAIN METAL CONTAINING COMPOUND |
| | 2 | Radioactive metal (At. No. 84+ or radioactive isotope of another metal) |
| | 3 |  Actinide series metal (At. No. 89+) |
| | 4 |  Removing cladding or coating from fuel element |
| | 5 | Fusing |
| | 6 | Ion exchanging or sorbing |
| | 8 | Liquid-liquid extracting |
| | 11 | Forming insoluble substance in liquid |
| | 12 |  By coprecipitating with carrier |
| | 15 | Forming compound containing plural metals or metal and ammonium |
| | 16 | Forming peroxide (e.g., U04, etc.) |
| | 17 | Carbonate leaching |
| | 18 | Acid leaching |
| | 19 | Volatizing |
| | 20 | Acid leaching |
| | 21.1 | Rare earth metal (At. No. 21, 39, or 57-71) |
| | 22 | Platinum group metal (Ru, Rh, Pd, Os, Ir, or Pt) |
| | 23 | Group IB metal (Cu, Ag, or Au) |
| | 24 | Ion exchanging or liquid-liquid extracting |
| | 25 | Sorbing or magnetic separating |
| | 26 | Flotation |
| | 27 | Leaching, washing, or dissolving |
| | 28 | Specified particle size |
| | 29 | With a cyanide compound |
| | 32 | With ammonia or ammonium containing compound |
| | 34 | Forming insoluble substance in liquid |
| | 38 | Halogenating |
| | 41 | Sulfating |
| | 42 | Forming insoluble substance in liquid |
| | 44 | Volatizing copper, silver, or gold |
| | 45 | Sulfating |
| | 46 | Halogenating |
| | 47 | Desulfurizing or de-arsenating |
| | 48 | Forming sulfide or matte |
| | 49 | Group VIIB metal (Mn, Tc, or Re) |
| | 53 | Group VIB metal (Cr, Mo, or W) |
| | 54 | Ion exchanging or liquid-liquid extracting |
| | 55 | Forming insoluble substance in liquid |
| | 59 | Volatizing |
| | 61 | Forming compound containing plural metals |
| | 62 | Group VB metal (V, Nb, or Ta) |
| | 63 | Ion exchanging or liquid-liquid extracting |
| | 64 | From organic liquids |
| | 65 | Forming insoluble substance in liquid |
| | 68 | Leaching, washing, or dissolving |
| | 69 | Group IVB metal (Ti, Zr, or Hf) |
| | 70 | Ion exchanging or liquid-liquid extracting |
| | 71 | Forming compound containing plural metals |
| | 73 | Separating Group IVB metals from each other |
| | 74 | Utilizing fluidized bed |
| | 75 | Volatizing |
| | 80 | Chemically converting for physical solid-solid separation |
| | 81 | Treating with nitrogen or nitrogenous compound |
| | 82 | Treating with sulfur or halogen containing acid |
| | 84 | Treating with compound containing alkali metal or alkaline earth metal |
| | 85 | Forming insoluble compound containing Group IVB metal |
| | 86 | Dissolving or leaching of iron |
| | 87 | Group VA metal or arsenic (Sb, Bi, or As) |
| | 89 | Group IVA metal (Ge, Sn, or Pb) |
| | 90 | Detinning |
| | 92 | Forming insoluble substance in liquid |
| | 96 | Volatizing germanium or tin |
| | 97 | Volatizing lead |
| | 98 | Leaching, washing, or dissolving |
| | 99 | Group IIB metal (Zn, Cd, or Hg) |
| | 100 | Ion exchanging or magnetic separating |
| | 101 | Forming insoluble substance in liquid |
| | 102 | Agitating during reaction |
| | 103 | Halogenating |
| | 104 | Hydroxylating or hydrating |
| | 105 | Carbonating |
| | 106 | Sulfating |
| | 107 | Volatizing zinc, cadmium, or mercury |
| | 109 | Leaching, washing, or dissolving |
| | 110 | Desulfurizing |
| | 111 | Group IIIA metal or beryllium (Al, Ga, In, Tl, or Be) |
| | 112 | Ion exchanging or liquid-liquid extracting |
| | 113 | Magnetic separating |
| | 114 | Forming compound containing ammonium and metal |
| | 115 | Forming compound containing plural metals |
| | 122 | Forming insoluble substance in liquid |
| | 123 | Subjecting mixture to pressure, vacuum, or steam |
| | 124 | Agitating during reaction |
| | 125 | Nitrating |
| | 126 | Halogenating |
| | 127 | Hydroxylating or hydrating |
| | 128 | Sulfating |
| | 129 | Carbonating |
| | 130 | Destroying or separating organic impurity |
| | 131 | Leaching, washing, or dissolving |
| | 133 | Volatizing |
| | 137 | Utilizing carbon as reducing agent |
| | 138 | Iron group metal (Fe, Co, or Ni) |
| | 139 | Ion exchanging or liquid-liquid extracting |
| | 140 | Forming insoluble substance in liquid |
| | 141 | Subjecting mixture to pressure, vacuum, or steam |
| | 142 | Agitating during reaction |
| | 143 | Utilizing or forming nitrogenous compound |
| | 146 | Sulfating |
| | 148 | Utilizing fluidized bed |
| | 149 | Volatizing iron, nickel, or cobalt |
| | 150.1 | Leaching, washing, or dissolving |
| | 150.2 | Spent catalyst |
| | 150.3 | Treatment of iron containing waste mixture |
| | 150.4 | Treatment of matte or nodule |
| | 151 | Converting metal to magnetic form |
| | 153 | Desulfurizing |
| | 155 | Alkaline earth metal (Mg, Ca, Sr, or Ba) |
| | 156 | Magnetic separating |
| | 157 | Ion exchanging or liquid-liquid extracting |
| | 157.2 | Phosphate rock or ore |
| | 157.5 | Phosphorous or phosphorous compound containing waste as feed |
| | 158 | Forming insoluble substance in liquid |
| | 159 | Subjecting mixture to pressure, vacuum, or steam |
| | 160 | Agitating during reaction |
| | 161 | Specified particle size used or made |
| | 162 | Nitrating or ammoniating |
| | 163 | Halogenating |
| | 164 | Hydroxylating or hydrating |
| | 165 | Carbonating |
| | 166 | Sulfating |
| | 167.1 | Treating asbestos |
| | 168 | Mixing fuel with starting mixture |
| | 169 | Separating magnesium and calcium from each other (e.g., treating dolomite, etc.) |
| | 170 | Treating impure sulfate (e.g., barite, etc.) |
| | 173 | Treating impure carbonate (e.g., oyster shells, etc.) |
| | 178 | Mixture contains halogen or sulfur |
| | 179 | Alkali metal (Li, Na, K, Rb, or Cs) |
| | 179.5 | Lithium |
| | 180 | Decomposing amalgam or other alloy |
| | 181 | Ion exchanging or liquid-liquid extracting |
| | 182 | Regenerating solution |
| | 184 | Forming insoluble substance in liquid |
| | 185 | Fluorinating or defluorinating |
| | 186 | Carbonating |
| | 187 | Utilizing or forming nitrogenous compound |
| | 188 | Subjecting mixture to pressure, vacuum, or steam |
| | 189 | Utilizing carbon dioxide as reactant |
| | 191 | Halogenating |
| | 192 | Hydroxylating or hydrating |
| | 193 | Sulfating |
| | 194 | Utilizing or forming nitrogenous compound |
| | 195 | Subjecting mixture to pressure, vacuum, or steam |
| | 196 | Agitating during reaction |
| | 197 | Halogenating |
| | 198 | Hydroxylating or hydrating |
| | 199 | Sulfating |
| | 200 | Volatizing an alkali metal |
| | 201 | Agitating during heating or reaction |
| | 202 | Treating with acid or acid salt |
| | 203 | Subjecting mixture to pressure, vacuum, or steam |
| | 206.1 | Mixture contains organic or carbonaceous impurity |
| | 208 | Water leaching or forming water soluble substance |
| | 209 | Carbonating |
| | 210 | MODIFYING OR REMOVING COMPONENT OF NORMALLY GASEOUS MIXTURE |
| | 210.5 | Direct contact with molten material |
| | 212 | Mixture is exhaust from internal-combustion engine |
| | 219 | Molecular oxygen or ozone component |
| | 220 | Carbon dioxide or hydrogen sulfide component |
| | 221 | Utilizing thionate or thiosulfate as reactant |
| | 222 | Reacting mixture with sulfur dioxide, sulfite, or bisulfite |
| | 223 | Utilizing reactant containing arsenic, phosphorus, or boron |
| | 224 | By oxidizing or burning component |
| | 225 | By suspension of metal oxide or hydroxide particles in liquid |
| | 226 | Utilizing organic reactant |
| | 230 | Utilizing solid sorbent, catalyst, or reactant |
| | 232 | Utilizing carbonate as reactant |
| | 234 | Utilizing ammonium or metal hydroxide solution |
| | 235 | Nitrogen or nitrogenous component |
| | 236 | Component also contains carbon (e.g., cyanogen, hydrogen cyanide, etc.) |
| | 237 | Ammonia |
| | 239.1 | Utilizing solid sorbent, catalyst, or reactant |
| | 240R | Halogenous component |
| | 242.1 | Sulfur or sulfur containing component |
| | 242.2 | Utilizing reactant having organic portion to remove or modify sulfur or sulfur containing component |
| | 242.3 | Organic acid |
| | 242.4 | Alcohol, arylhydroxide, or polyol |
| | 242.5 | Sugar |
| | 242.6 | Heterocyclic |
| | 242.7 | Amine |
| | 243.01 | Utilizing aqueous reactant to remove or modify sulfur or sulfur containing component |
| | 243.02 | And addition of gaseous reactant |
| | 243.04 | Ion separation step |
| | 243.05 | With component added to inhibit corrosion or scaling of processing apparatus |
| | 243.06 | Ammonium compound reactant |
| | 243.07 | Transition metal or compound thereof reactant |
| | 243.08 | Alkali or alkali earth compound reactant |
| | 243.11 | And subsequent reactive treatment to remove sulfur from spent reactant |
| | 244.01 | Utilizing solid reactant or catalyst to remove or modify sulfur or sulfur containing component |
| | 245.1 | Organic component |
| | 246 | Carbon monoxide component |
| | 248 | Hydrogen component |
| | 215.5 | Solid component |
| | 249 | RADIOACTIVE (AT. NO. 84+ OR RADIOACTIVE ISOTOPE OF ANOTHER ELEMENT) |
| | 262 | INERT OR NOBLE GAS OR COMPOUND THEREOF |
| | 263 | RARE EARTH COMPOUND (AT. NO. 21, 39, OR 57-71) |
| | 264 | CHANGING COLOR CHARACTERISTIC OF IMPURITY |
| | 265 | WITH ADDITIVE |
| | 266 | For stabilizing crystal size or shape |
| | 267 | Including anticaking or antihygroscopic function |
| | 269 | Including corrosion inhibitor |
| | 270 | For sulfur trioxide |
| | 272 | For hydrogen peroxide |
| | 274 | Coating or binder |
| | 275 | Additive contains metal, boron, or silicon |
| | 276 | BORON OR COMPOUND THEREOF |
| | 277 | Oxygen containing |
| | 278 | Binary compound |
| | 279 | Ternary compound containing metal or ammonium |
| | 283 | Ternary compound containing hydrogen |
| | 284 | Nitrogen and hydrogen containing |
| | 286 | Hydrogen and metal or ammonium containing |
| | 289 | Binary compound (e.g., boride, etc.) |
| | 290 | Nitrogen containing |
| | 291 | Carbon containing |
| | 292 | Halogen containing |
| | 294 | Hydrogen containing |
| | 297 | Refractory metal containing (Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, or W) |
| | 298 | Elemental boron |
| | 299 | PHOSPHORUS OR COMPOUND THEREOF |
| | 300 | Halogen containing |
| | 302 | Nitrogen containing |
| | 303 | Sulfur containing |
| | 304 | Oxygen containing |
| | 305 | Metal or ammonium containing |
| | 306 | Plural metal or metal and ammonium containing |
| | 307 | Hydrogen containing |
| | 311 | Orthophosphate |
| | 314 | Metaphosphate |
| | 315 | Triphosphate or tetraphosphate |
| | 316 | Ternary compound containing hydrogen |
| | 322 | Elemental phosphorus |
| | 324 | SILICON OR COMPOUND THEREOF |
| | 325 | Oxygen containing |
| | 326 | Metal containing (i.e., silicate) |
| | 327.1 | Aluminum containing |
| | 331 | Alkaline earth metal containing (Mg, Ca, Sr, or Ba) |
| | 332 | Alkali metal containing (Li, Na, K, Rb, or Cs) |
| | 335 | Silica |
| | 341 | Halogen containing |
| | 344 | Binary compound (e.g., silicide, etc.) |
| | 348 | Elemental silicon |
| | 351 | NITROGEN OR COMPOUND THEREOF (EXCEPT AMMONIUM SALT OF NON-NITROGEN ACID) |
| | 352 | Ammonia or ammonium hydroxide |
| | 353 | From nitride of metal or silicon |
| | 354 | And producing inorganic carbon and nitrogen containing compound |
| | 355 | By hydrolyzing inorganic carbon and nitrogen containing compound |
| | 356 | From ammonium compound |
| | 358 | From organic material containing nitrogen |
| | 359 | From elemental hydrogen and nitrogen |
| | 364 | Carbon containing |
| | 365 | And oxygen containing (e.g., fulminate, cyanate, etc.) |
| | 366 | And sulfur containing (e.g., thiocyanate, etc.) |
| | 367 | And iron containing (e.g., ferrocyanide, etc.) |
| | 368 | Cyanamide radical containing |
| | 371 | Ternary compound |
| | 372 | Hydrogen cyanide |
| | 373 | Employing formamide or formate as reactant |
| | 374 | Utilizing nitric oxide or free nitrogen as reactant |
| | 375 | Employing ammonia as reactant |
| | 377 | Utilizing metal cyanide as reactant |
| | 378 | Using cyanamide as reactant |
| | 379 | Utilizing hydrogen cyanide as reactant |
| | 380 | Utilizing free nitrogen as reactant |
| | 383 | Halogen containing |
| | 384 | Binary (e.g., cyanogen, etc.) |
| | 385 | Oxygen containing |
| | 386 | Halogen containing |
| | 387 | Hydrogen containing |
| | 395 | Nitrate |
| | 396 | Ammonium containing |
| | 397 | Utilizing ammonium or metal nitrate as reactant |
| | 398 | Utilizing halogen containing reactant |
| | 400 | Binary compound (oxide of nitrogen) |
| | 406 | Binary compound |
| | 413 | Hydrogen containing (e.g., amide, imide, etc.) |
| | 414 | CARBON OR COMPOUND THEREOF |
| | 415.1 | Oxygen containing |
| | 415.2 | Percarbonate compound |
| | 416 | Carbonyl |
| | 418.2 | Carbon monoxide |
| | 419.1 | Carbonate or bicarbonate |
| | 420 | Ammonium containing |
| | 420.2 | Plural metal containing |
| | 421 | Alkali metal containing (Li, Na, K, Rb, or Cs) |
| | 422 | Hydrogen containing (bicarbonate) |
| | 426 | Densifying soda ash |
| | 427 | By reacting a bicarbonate |
| | 428 | By reacting sulfur containing compound |
| | 429 | By reacting halogen containing compound |
| | 430 | Alkaline earth metal containing (Mg, Ca, Sr, or Ba) |
| | 431 | By reacting sulfur or halogen containing compound |
| | 432 | By reacting oxide or hydroxide of the metal |
| | 433 | Lead containing |
| | 437.1 | Carbon dioxide or carbonic acid |
| | 439 | Binary compound (e.g., carbide, etc.) |
| | 445R | Elemental carbon |
| | 446 | Diamond |
| | 447.1 | Fiber, fabric, or textile |
| | 447.2 | Product |
| | 447.3 | From gaseous reactants |
| | 447.4 | Prior treatment before carbonization (except with gaseous oxygen) |
| | 447.6 | Including reaction with gaseous oxygen |
| | 447.7 | In specific atmosphere (other than vacuum or air) |
| | 447.8 | Controlling varying temperature or plural heating steps |
| | 447.9 | Carbonizing cellulosic material |
| | 448 | Graphite |
| | 449.1 | Carbon black (e.g., lampblack) |
| | 449.2 | Treating carbon black |
| | 449.3 | Treating with acid, or gas which forms acid in water |
| | 449.4 | Halogen or compound thereof |
| | 449.5 | Gaseous oxygen containing compound |
| | 449.6 | Utilizing synthetic polymer as reactant |
| | 449.8 | Solid material in feed |
| | 450 | Directly from fluid hydrocarbon only |
| | 451 | Rapid and discontinuous oxidation |
| | 452 | Including flame impinging on cool surface |
| | 453 | By contacting with catalyst or hot solid surface |
| | 455 | Specified injection velocity |
| | 456 | Specified injection angle (e.g., helical, tangential, etc.) |
| | 458 | Gas or vapor only as infeed to process |
| | 449.9 | Liquid feed only |
| | 459 | From carbon monoxide infeed to process |
| | 460 | Treating carbon |
| | 461 | Recovery or purification |
| | 445B | Fullerene (e.g., C60, C70, etc.) |
| | 462 | HALOGEN OR COMPOUND THEREOF |
| | 463 | Plural metal or metal and ammonium containing |
| | 466 | Plural diverse halogens containing |
| | 467 | Sulfur containing |
| | 470 | Ammonium halide |
| | 472 | Ternary compound |
| | 473 | Hypohalite or hypohalous acid |
| | 475 | Halogenate (e.g., chlorates, etc.) |
| | 476 | Perhalate or perhalic acid |
| | 477 | Chlorine dioxide |
| | 481 | Hydrogen halide |
| | 482 | By reacting alkali metal salt with sulfuric acid |
| | 483 | Hydrogen fluoride |
| | 486 | Utilizing an element as reactant |
| | 488 | Recovery or purification |
| | 489 | Binary fluorine containing compound |
| | 491 | Binary compound containing metal |
| | 492 | Refractory metal (Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, or W) |
| | 493 | Iron group metal or copper (Fe, Co, Ni, or Cu) |
| | 494 | Group IVA metal (Ge, Sn, or Pb) |
| | 495 | Group IIIA metal or beryllium (Al, Ga, In, Tl, or Be) |
| | 497 | Alkaline earth metal (Mg, Ca, Sr, or Ba) |
| | 499.1 | Alkali metal |
| | 500 | Elemental halogen |
| | 508 | SELENIUM OR TELLURIUM OR COMPOUND THEREOF |
| | 511 | SULFUR OR COMPOUND THEREOF |
| | 512.1 | Oxygen containing |
| | 513 | Persulfate |
| | 514 | Thiosulfate |
| | 515 | Dithionite |
| | 517 | Metal and ammonium containing |
| | 518 | Plural metal containing |
| | 519 | Bisulfite |
| | 519.2 | Sulfite |
| | 521 | Ternary compound containing hydrogen |
| | 522 | Sulfuric acid |
| | 523 | Nitrogenous impurity or utilizing nitrogenous catalyst or reactant |
| | 525 | Starting material includes organic or carbonaceous impurity |
| | 526 |  Utilizing pressure or vacuum on mixture |
| | 527 | Adding organic compound to mixture |
| | 528 | Contacting mixture with gas, steam, or vapor |
| | 529 | Subjecting reactants to pressure, vacuum, or steam |
| | 530 | Utilizing metal sulfate |
| | 531 | Purifying acid or reactant |
| | 532 | Sulfur trioxide |
| | 539 | Sulfur dioxide |
| | 540 | From acid sludge or waste |
| | 541.1 | Utilizing metal sulfate as reactant |
| | 542 | Burning or roasting a sulfur compound |
| | 543 | Burning sulfur |
| | 544 | Sulfate |
| | 545 | Ammonium containing |
| | 546 | Utilizing thiocyanate as reactant |
| | 547 | Employing sulfite or bisulfite as reactant |
| | 548 | Using metal sulfate as reactant |
| | 549 | Employing sulfuric acid as reactant |
| | 551 | Alkali metal containing (Li, Na, K, Rb, or Cs) |
| | 554 | Alkaline earth metal containing (Mg, Ca, Sr, or Ba) |
| | 556 | Aluminum containing |
| | 557 | Copper containing |
| | 558 | Iron containing |
| | 559 | Lead containing |
| | 560 | Ternary compound containing hydrogen and metal (e.g., hydrosulfide, etc.) |
| | 561.1 | Binary compound |
| | 562 | Polysulfide |
| | 563 | Hydrogen sulfide |
| | 565 | Utilizing free sulfur as reactant |
| | 566 | Utilizing sulfate or sulfuric acid as reactant |
| | 566.1 | Sulfide of Cd, Zn, or Hg |
| | 566.2 | Sulfide of alkali metal |
| | 566.3 | Sulfide of alkaline earth metal |
| | 567.1 | Elemental sulfur |
| | 568 | Chlorinating |
| | 569 | Reducing sulfur dioxide by carbon containing material |
| | 571 | Reacting a sulfide |
| | 572 | With steam to form hydrogen sulfide |
| | 573.1 | Hydrogen sulfide |
| | 574.1 | With sulfur dioxide |
| | 574.2 | In inorganic liquid |
| | 575 | Utilizing organic solvent or absorbent |
| | 576 | Utilizing promotor containing silica or aluminum |
| | 576.2 | With specified procedure for sulfur recovery or specified conditions for producing sulfur in more recoverable form |
| | 576.4 | By reacting gaseous feed stream with liquid aqueous mixture |
| | 576.8 | By reacting gaseous feed with gas containing free oxygen |
| | 577 | Reacting metal sulfide with sulfur dioxide |
| | 578.1 | Purifying crude sulfur |
| | 578.4 | From liquid or solid compound |
| | 579 | OXYGEN OR COMPOUND THEREOF |
| | 580.1 | Water |
| | 581 | Superoxide or ozone |
| | 582 | Peroxide |
| | 583 | Alkaline earth metal (Mg, Ca, Sr, or Ba) |
| | 584 | Hydrogen |
| | 592.1 | Metal containing |
| | 593.1 | Plural metals or metal and ammonium containing |
| | 594.1 | Iron (Fe) containing |
| | 594.3 | Nickel (Ni) containing |
| | 594.5 | Cobalt (Co) containing |
| | 595 | Chromium (e.g., chromate, etc.) |
| | 598 | Titanium (e.g., titanate, etc.) |
| | 599 | Manganese (e.g., manganate, etc.) |
| | 600 | Aluminum (e.g., aluminate, etc.) |
| | 601 | Arsenic (e.g., arsenite, etc.) |
| | 594.7 | Bismuth or antimony containing (e.g., bismuthate, antimonate, etc.) |
| | 594.8 | Vanadium, niobium, or tantalum containing (e.g., vanadate, niobate, tantalate, etc.) |
| | 594.9 | Tin, lead, or germanium containing (e.g., stannate, plumbate, etc.) |
| | 594.12 | Zirconium containing (e.g., zirconate, etc.) |
| | 594.13 | Tungsten containing (e.g., tungstate, etc.) |
| | 594.14 | Zinc, cadmium, or mercury containing (e.g., zincate, etc.) |
| | 594.15 | Alkali metal containing (Li, Na, K, Rb, or Cs) |
| | 594.16 | Alkaline earth metal containing (Mg, Ca, Sr, or Ba) |
| | 604 | Group IB metal (Cu, Ag, or Au) |
| | 605 | Group VIIB metal (Mn, Tc, or Re) |
| | 606 | Group VIB metal (Cr, Mo, or W) |
| | 608 | Group IVB metal (Ti, Zr, or Hf) |
| | 617 | Group VA metal or arsenic (Sb, Bi, or As) |
| | 618 | Group IVA metal (Ge, Sn, or Pb) |
| | 622 | Zinc |
| | 624 | Group IIIA metal or beryllium (Al, Ga, In, Tl, or Be) |
| | 632 | Iron |
| | 635 | Alkaline earth metal (Mg, Ca, Sr, or Ba) |
| | 641 | Alkali metal (Li, Na, K, Rb, or Cs) |
| | 594.17 | Vanadium (V), niobium (Nb), or tantalum (Ta) containing |
| | 594.18 | Cadmium (Cd) or mercury (Hg) containing |
| | 594.19 | Cobalt (Co) or nickel (Ni) containing |
| | 644 | HYDROGEN OR COMPOUND THEREOF |
| | 645 | Binary compound |
| | 646 | Alkali metal containing (Li, Na, K, Rb, or Cs) |
| | 647 | Alkaline earth metal containing (Mg, Ca, Sr, or Ba) |
| | 647.7 | Deuterium-containing |
| | 648.1 | Elemental hydrogen |
| | 649 | Ortho-para conversion |
| | 650 | By decomposing hydrocarbon |
| | 655 | By reacting water with carbon monoxide |
| | 657 | By reacting water or aqueous solution with metal or compound thereof |
| | 658.2 | By direct decomposition of binary compound; e.g., chemical storage, etc. |
| | 658.3 | By reaction of impurities in a stream containing elemental hydrogen |
| | 658.5 | EXTRACTING, LEACHING, OR DISSOLVING |
| | 659 | MISCELLANEOUS PROCESS |
| FOREIGN ART COLLECTIONS | ||
| FOR000 | CLASS-RELATED FOREIGN DOCUMENTS |
| Any foreign patents or nonpatent literature from subclasses that have been reclassified have been transferred directly to the FOR Collection listed below. These Collections contain ONLY foreign patents or nonpatent literature. The parenthetical references in the Collection titles refer to the abolished subclasses from which these Collections were derived. | ||
| OXYGEN OR COMPOUND THEREOF (423/579) |
| DIGESTS | ||
| | DIG1 | WASTE ACID CONTAINING IRON |
| | DIG3 | PAPERMAKING LIQUOR |
| | DIG4 | MANGANESE MARINE MODULES |
| | DIG5 | AUTOMATIC (INCLUDING COMPUTER) CONTROL |
| | DIG6 | TEMPERATURE CONTROL |
| | DIG7 | ISOTOPE SEPARATION |
| | DIG8 | CORROSION OR DEPOSITION INHIBITING |
| | DIG9 | REACTION TECHNIQUES |
| | DIG10 | Plasma energized |
| | DIG11 | High pressure |
| | DIG12 | Molten media |
| | DIG13 | Catalyst contact |
| | DIG14 | Ion exchange; chelation or liquid/liquid ion extraction |
| | DIG15 | Comminution |
| | DIG16 | Fluidization |
| | DIG17 | Microbiological reactions |
| | DIG18 | TREATING TRASH OR GARBAGE |
| | DIG19 | GEOTHERMAL STEAM PURIFICATION |
| | DIG21 | FAUJASITE; E.G., X, Y, CZS-3, ECR-4, Z-14HS, VHP-R |
| | DIG22 | MFI; E.G., ZSM-5. SILICALITE, LZ-241 |
| | DIG23 | FERRIERITE; E.G., SR-D ZSM-33 |
| | DIG24 | LTA; E.G., A, ALPHA, ZK-4, ZK-21, ZK-22 |
| | DIG25 | MORDENITE; E.G., NA-D, PTTILOLITE, ZEOLON |
| | DIG26 | MAZZITE; E.G., ZSM-4, OMEGA |
| | DIG27 | BETA; E.G., NU-2 |
| | DIG28 | LTL; E.G., BA-G, L, AG-1, AG-2, AG-4, BA-6 |
| | DIG29 | MEL; E.G., ZSM-11 |
| | DIG30 | ALPO AND SAPO |
| | DIG31 | RHO; E.G., ECR-10, LZ-214 |
| | DIG32 | SODALITE; E.G., HS, ULTRAMARINE |
| | DIG33 | MTW; E.G., ZSM-12, NU-13, CZH-5, TPZ-3 |
| | DIG34 | PENTASILS OTHER THAN MFI AND MEL; E.G., AZ-1, TZ-01, TZ-02, TRS, ZBM-10 |
| | DIG35 | TON; E.G., THETA-1, ISI-1, KZ-2, ZSM-22, NU-10 |
| | DIG36 | MTT; E.G., ZSM-23, ISI-1, KZ-1, EU-1, EU-4, EU-13 |
| | DIG37 | LEV; E.G., LEVYNIK, ZMT-45, ZK-20, NU-3, LZ-132, LZ-133 |
| | DIG38 | OFFRETITE; E.G., TMA OFFREITE |
| | DIG39 | FULLERENE (E.G., C60, C70, ETC.) DERIVATIVE AND RELATED PROCESS |
| | DIG40 | FULLERENE COMPOSITION |