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[Search a list of Patent Appplications for class 549]  Class   549ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES
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This Class 549 is considered to be an integral part of Class 260 (see the Class 260 schedule for the position of this Class in schedule hierarchy). This Class retains all pertinent definitions and class lines of Class 260.
                ORGANIC COMPOUNDS (CLASS 532, SUBCLASS 1)
                Subclass indent level is 1 HETEROCYCLIC CARBON COMPOUNDS CONTAINING A HETERO RING HAVING CHALCOGEN (I.E., OXYGEN, SULFUR, SELENIUM, OR TELLURIUM) OR NITROGEN AS THE ONLY RING HETERO ATOMS (Class 540, subclass 1)
   [List of Patents for class 549 subclass 1]  1           Subclass 1 indent level is 2 Sulfur containing hetero ring (e.g., thiiranes, etc.)
    [List of Patents for class 549 subclass 2]  2           Subclass 2 indent level is 3 With preservative or stabilizer
    [List of Patents for class 549 subclass 3]  3           Subclass 3 indent level is 3 Heavy metal or aluminum containing
    [List of Patents for class 549 subclass 4]  4           Subclass 4 indent level is 3 Boron or silicon containing
   [List of Patents for class 549 subclass 5]  5           Subclass 5 indent level is 3 Phosphorus attached directly or indirectly to the hetero ring by nonionic bonding
   [List of Patents for class 549 subclass 9]  9           Subclass 9 indent level is 3 The hetero ring has at least seven members
   [List of Patents for class 549 subclass 13]  13           Subclass 13 indent level is 3 The hetero ring is six-membered
   [List of Patents for class 549 subclass 29]  29           Subclass 29 indent level is 3 The hetero ring is five-membered
   [List of Patents for class 549 subclass 30]  30           Subclass 30 indent level is 4 Plural ring hetero atoms in the hetero ring
   [List of Patents for class 549 subclass 41]  41           Subclass 41 indent level is 4 Polycyclo ring system having the hetero ring as one of the cyclos
    [List of Patents for class 549 subclass 42]  42           Subclass 42 indent level is 5 Tetracyclo ring system having the hetero ring as one of the cyclos
   [List of Patents for class 549 subclass 43]  43           Subclass 43 indent level is 5 Tricyclo ring system having the hetero ring as one of the cyclos
   [List of Patents for class 549 subclass 49]  49           Subclass 49 indent level is 5 Bicyclo ring system having the hetero ring as one of the cyclos
   [List of Patents for class 549 subclass 59]  59           Subclass 59 indent level is 4 Additional hetero ring containing
    [List of Patents for class 549 subclass 61]  61           Subclass 61 indent level is 4 Cyano bonded directly to the hetero ring
   [List of Patents for class 549 subclass 62]  62           Subclass 62 indent level is 4 Chalcogen bonded directly to ring carbon of the hetero ring
   [List of Patents for class 549 subclass 68]  68           Subclass 68 indent level is 4 Nitrogen attached directly to the hetero ring by nonionic bonding
   [List of Patents for class 549 subclass 70]  70           Subclass 70 indent level is 4 Having -C(=X)-, wherein X is chalcogen, bonded directly to the hetero ring
   [List of Patents for class 549 subclass 74]  74           Subclass 74 indent level is 4 Nitrogen attached indirectly to the hetero ring by nonionic bonding
   [List of Patents for class 549 subclass 78]  78           Subclass 78 indent level is 4 Chalcogen attached indirectly to the hetero ring by nonionic bonding
    [List of Patents for class 549 subclass 80]  80           Subclass 80 indent level is 4 Unsaturated carbocyclic ring or acyclic carbon to carbon unsaturation containing
   [List of Patents for class 549 subclass 81]  81           Subclass 81 indent level is 4 Halogen attached directly to the hetero ring by nonionic bonding
   [List of Patents for class 549 subclass 83]  83           Subclass 83 indent level is 4 The compound consists of the ring sulfur, carbon, and hydrogen
    [List of Patents for class 549 subclass 87]  87           Subclass 87 indent level is 4 Plural chalcogens double bonded directly to ring sulfur of the hetero ring
   [List of Patents for class 549 subclass 88]  88           Subclass 88 indent level is 3 The hetero ring is four-membered
    [List of Patents for class 549 subclass 90]  90           Subclass 90 indent level is 3 The hetero ring is three-membered and has chalcogen or nitrogen attached directly or indirectly thereto by nonionic bonding
   [List of Patents for class 549 subclass 200]  200           Subclass 200 indent level is 2 Oxygen containing hetero ring (e.g., dioxirane, etc.)