PATENTS   
Patents > Guidance, Tools, and Manuals > Classification > Class Schedule
    Class Numbers & Titles   | Class Numbers Only   | USPC Index   | International   | HELP  
You are viewing a USPC Schedule.
[Search a list of Patent Appplications for class 423]  Class   423CHEMISTRY OF INORGANIC COMPOUNDS
Click here for a printable version of this file
  Turn Outline  
     Expand/Contract Processing Please Wait
   [List of Patents for class 423 subclass 700]  700           ZEOLITE
   [List of Patents for class 423 subclass 701]  701           Subclass 701 indent level is 1 Organic compound used to form zeolite
   [List of Patents for class 423 subclass 702]  702           Subclass 702 indent level is 2 Organic template used
    [List of Patents for class 423 subclass 703]  703           Subclass 703 indent level is 3 Mixed template
   [List of Patents for class 423 subclass 704]  704           Subclass 704 indent level is 3 Nitrogen containing
   [List of Patents for class 423 subclass 705]  705           Subclass 705 indent level is 4 Amine
    [List of Patents for class 423 subclass 706]  706           Subclass 706 indent level is 5 Cyclic
    [List of Patents for class 423 subclass 707]  707           Subclass 707 indent level is 5 Hydroxyl
    [List of Patents for class 423 subclass 708]  708           Subclass 708 indent level is 5 Diamine
    [List of Patents for class 423 subclass 709]  709           Subclass 709 indent level is 1 Seed used
   [List of Patents for class 423 subclass 710]  710           Subclass 710 indent level is 1 Aging to induce zeolite formation from inorganic mixture
    [List of Patents for class 423 subclass 711]  711           Subclass 711 indent level is 2 With physical treatment
    [List of Patents for class 423 subclass 712]  712           Subclass 712 indent level is 1 Synthesized from naturally occurring product
   [List of Patents for class 423 subclass 713]  713           Subclass 713 indent level is 1 Isomorphic metal substitution
   [List of Patents for class 423 subclass 714]  714           Subclass 714 indent level is 2 Acid treatment
    [List of Patents for class 423 subclass 715]  715           Subclass 715 indent level is 3 Halogen containing acid
   [List of Patents for class 423 subclass 716]  716           Subclass 716 indent level is 1 With change of synthesized zeolite morphology
    [List of Patents for class 423 subclass 717]  717           Subclass 717 indent level is 2 Physical treatment
    [List of Patents for class 423 subclass 718]  718           Subclass 718 indent level is 1 Structure defined X-ray diffraction pattern
   [List of Patents for class 423 subclass 1]  1           TREATING MIXTURE TO OBTAIN METAL CONTAINING COMPOUND
   [List of Patents for class 423 subclass 2]  2           Subclass 2 indent level is 1 Radioactive metal (At. No. 84+ or radioactive isotope of another metal)
   [List of Patents for class 423 subclass 3]  3           Subclass 3 indent level is 2 Actinide series metal (At. No. 89+)
    [List of Patents for class 423 subclass 4]  4           Subclass 4 indent level is 3 Removing cladding or coating from fuel element
    [List of Patents for class 423 subclass 5]  5           Subclass 5 indent level is 3 Fusing
   [List of Patents for class 423 subclass 6]  6           Subclass 6 indent level is 3 Ion exchanging or sorbing
    [List of Patents for class 423 subclass 7]  7           Subclass 7 indent level is 4 Organic synthetic resin
   [List of Patents for class 423 subclass 8]  8           Subclass 8 indent level is 3 Liquid-liquid extracting
    [List of Patents for class 423 subclass 9]  9           Subclass 9 indent level is 4 Organo-nitrogen solvent
    [List of Patents for class 423 subclass 10]  10           Subclass 10 indent level is 4 Organo-phosphorus solvent
   [List of Patents for class 423 subclass 11]  11           Subclass 11 indent level is 3 Forming insoluble substance in liquid
   [List of Patents for class 423 subclass 12]  12           Subclass 12 indent level is 4 By coprecipitating with carrier
    [List of Patents for class 423 subclass 13]  13           Subclass 13 indent level is 5 Carrier contains bismuth
    [List of Patents for class 423 subclass 14]  14           Subclass 14 indent level is 5 Carrier contains lanthanum
    [List of Patents for class 423 subclass 15]  15           Subclass 15 indent level is 4 Forming compound containing plural metals or metal and ammonium
    [List of Patents for class 423 subclass 16]  16           Subclass 16 indent level is 4 Forming peroxide (e.g., U04, etc.)
    [List of Patents for class 423 subclass 17]  17           Subclass 17 indent level is 4 Carbonate leaching
    [List of Patents for class 423 subclass 18]  18           Subclass 18 indent level is 4 Acid leaching
    [List of Patents for class 423 subclass 19]  19           Subclass 19 indent level is 3 Volatizing
    [List of Patents for class 423 subclass 20]  20           Subclass 20 indent level is 3 Acid leaching
   [List of Patents for class 423 subclass 21.1]  21.1           Subclass 21.1 indent level is 1 Rare earth metal (At. No. 21, 39, or 57-71)
    [List of Patents for class 423 subclass 21.5]  21.5           Subclass 21.5 indent level is 2 Ion exchanging or liquid-liquid extracting
    [List of Patents for class 423 subclass 22]  22           Subclass 22 indent level is 1 Platinum group metal (Ru, Rh, Pd, Os, Ir, or Pt)
   [List of Patents for class 423 subclass 23]  23           Subclass 23 indent level is 1 Group IB metal (Cu, Ag, or Au)
    [List of Patents for class 423 subclass 24]  24           Subclass 24 indent level is 2 Ion exchanging or liquid-liquid extracting
    [List of Patents for class 423 subclass 25]  25           Subclass 25 indent level is 2 Sorbing or magnetic separating
    [List of Patents for class 423 subclass 26]  26           Subclass 26 indent level is 2 Flotation
   [List of Patents for class 423 subclass 27]  27           Subclass 27 indent level is 2 Leaching, washing, or dissolving
    [List of Patents for class 423 subclass 28]  28           Subclass 28 indent level is 3 Specified particle size
   [List of Patents for class 423 subclass 29]  29           Subclass 29 indent level is 3 With a cyanide compound
    [List of Patents for class 423 subclass 30]  30           Subclass 30 indent level is 4 And pressurizing
    [List of Patents for class 423 subclass 31]  31           Subclass 31 indent level is 4 And agitating
   [List of Patents for class 423 subclass 32]  32           Subclass 32 indent level is 3 With ammonia or ammonium containing compound
    [List of Patents for class 423 subclass 33]  33           Subclass 33 indent level is 4 Specified temperature
   [List of Patents for class 423 subclass 34]  34           Subclass 34 indent level is 3 Forming insoluble substance in liquid
    [List of Patents for class 423 subclass 35]  35           Subclass 35 indent level is 4 Forming oxide or carbonate
    [List of Patents for class 423 subclass 36]  36           Subclass 36 indent level is 4 Sulfating
    [List of Patents for class 423 subclass 37]  37           Subclass 37 indent level is 4 Sulfiding
   [List of Patents for class 423 subclass 38]  38           Subclass 38 indent level is 3 Halogenating
    [List of Patents for class 423 subclass 39]  39           Subclass 39 indent level is 4 Specified temperature
    [List of Patents for class 423 subclass 40]  40           Subclass 40 indent level is 4 With chlorine gas or chlorinated water
    [List of Patents for class 423 subclass 41]  41           Subclass 41 indent level is 3 Sulfating
   [List of Patents for class 423 subclass 42]  42           Subclass 42 indent level is 2 Forming insoluble substance in liquid
    [List of Patents for class 423 subclass 43]  43           Subclass 43 indent level is 3 Specified pH
    [List of Patents for class 423 subclass 44]  44           Subclass 44 indent level is 2 Volatizing copper, silver, or gold
    [List of Patents for class 423 subclass 45]  45           Subclass 45 indent level is 2 Sulfating
    [List of Patents for class 423 subclass 46]  46           Subclass 46 indent level is 2 Halogenating
    [List of Patents for class 423 subclass 47]  47           Subclass 47 indent level is 2 Desulfurizing or de-arsenating
    [List of Patents for class 423 subclass 48]  48           Subclass 48 indent level is 2 Forming sulfide or matte
   [List of Patents for class 423 subclass 49]  49           Subclass 49 indent level is 1 Group VIIB metal (Mn, Tc, or Re)
   [List of Patents for class 423 subclass 50]  50           Subclass 50 indent level is 2 Forming insoluble substance in liquid
    [List of Patents for class 423 subclass 51]  51           Subclass 51 indent level is 3 Halogenating
    [List of Patents for class 423 subclass 52]  52           Subclass 52 indent level is 3 Sulfating
   [List of Patents for class 423 subclass 53]  53           Subclass 53 indent level is 1 Group VIB metal (Cr, Mo, or W)
    [List of Patents for class 423 subclass 54]  54           Subclass 54 indent level is 2 Ion exchanging or liquid-liquid extracting
   [List of Patents for class 423 subclass 55]  55           Subclass 55 indent level is 2 Forming insoluble substance in liquid
    [List of Patents for class 423 subclass 56]  56           Subclass 56 indent level is 3 Ammoniating or nitrating
    [List of Patents for class 423 subclass 57]  57           Subclass 57 indent level is 3 Sulfating
    [List of Patents for class 423 subclass 58]  58           Subclass 58 indent level is 3 Forming compound containing plural metals
   [List of Patents for class 423 subclass 59]  59           Subclass 59 indent level is 2 Volatizing
    [List of Patents for class 423 subclass 60]  60           Subclass 60 indent level is 3 As a compound containing chlorine
    [List of Patents for class 423 subclass 61]  61           Subclass 61 indent level is 2 Forming compound containing plural metals
   [List of Patents for class 423 subclass 62]  62           Subclass 62 indent level is 1 Group VB metal (V, Nb, or Ta)
    [List of Patents for class 423 subclass 63]  63           Subclass 63 indent level is 2 Ion exchanging or liquid-liquid extracting
    [List of Patents for class 423 subclass 64]  64           Subclass 64 indent level is 2 From organic liquids
   [List of Patents for class 423 subclass 65]  65           Subclass 65 indent level is 2 Forming insoluble substance in liquid
    [List of Patents for class 423 subclass 66]  66           Subclass 66 indent level is 3 Hydroxylating or hydrating
    [List of Patents for class 423 subclass 67]  67           Subclass 67 indent level is 3 Ammoniating or sulfating
    [List of Patents for class 423 subclass 68]  68           Subclass 68 indent level is 2 Leaching, washing, or dissolving
   [List of Patents for class 423 subclass 69]  69           Subclass 69 indent level is 1 Group IVB metal (Ti, Zr, or Hf)
    [List of Patents for class 423 subclass 70]  70           Subclass 70 indent level is 2 Ion exchanging or liquid-liquid extracting
   [List of Patents for class 423 subclass 71]  71           Subclass 71 indent level is 2 Forming compound containing plural metals
    [List of Patents for class 423 subclass 72]  72           Subclass 72 indent level is 3 Halogen containing
    [List of Patents for class 423 subclass 73]  73           Subclass 73 indent level is 2 Separating Group IVB metals from each other
    [List of Patents for class 423 subclass 74]  74           Subclass 74 indent level is 2 Utilizing fluidized bed
   [List of Patents for class 423 subclass 75]  75           Subclass 75 indent level is 2 Volatizing
    [List of Patents for class 423 subclass 80]  80           Subclass 80 indent level is 2 Chemically converting for physical solid-solid separation
    [List of Patents for class 423 subclass 81]  81           Subclass 81 indent level is 2 Treating with nitrogen or nitrogenous compound
   [List of Patents for class 423 subclass 82]  82           Subclass 82 indent level is 2 Treating with sulfur or halogen containing acid
    [List of Patents for class 423 subclass 84]  84           Subclass 84 indent level is 2 Treating with compound containing alkali metal or alkaline earth metal
    [List of Patents for class 423 subclass 85]  85           Subclass 85 indent level is 2 Forming insoluble compound containing Group IVB metal
    [List of Patents for class 423 subclass 86]  86           Subclass 86 indent level is 2 Dissolving or leaching of iron
   [List of Patents for class 423 subclass 87]  87           Subclass 87 indent level is 1 Group VA metal or arsenic (Sb, Bi, or As)
    [List of Patents for class 423 subclass 88]