PTO Manual of Classification for US patents

PTO Manual of Classification for US patents

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.


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363-131 121-55A 14-.5
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Class Number: 536
 Class Title: ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

Subclass  Subclass
Number    Title

  *       ORGANIC COMPOUNDS (Class 532, Subclass 1)
  1.11    .Carbohydrates or derivatives
  2       ..Pectin or derivative
  3       ..Algin or derivative
  4.1     ..O- or S- Glycosides
  4.4     ...Aescin or derivative
  5       ...Cyclopentanohydrophenanthrene ring system
  6       ....Oxygen containing six-membered hetero ring (e.g., oxathiane,
               etc.)
  6.1     ....Oxygen containing five-membered hetero ring
  6.2     .....Nitrogen, phosphorus or halogen containing
  6.3     .....Processes of extracting from plant materials
  6.4     ...Daunomycin or derivative
  6.5     ...Oxygen containing hetero ring having at least twenty
              members (e.g., amphotericin, nystatin, pimaricin, etc.)
  7.1     ...Oxygen containing hetero ring having 12-19 members
              (e.g., methymycin, carbomycin, spiramycin, etc.)
  7.2     ....Erythromycin or derivative (e.g., oleandomycin, etc.)
  7.3     .....Boron, phosphorus or sulfur containing
  7.4     .....Additional nitrogen containing
  7.5     .....Purification or recovery
  8       ...Flavon sugar compounds
  8.8     ...Coumermycin or derivative
  13      ...Novobiocin or derivative
  13.1    ...Antibiotic BM 123 or derivative
  13.2    ...Neomycin B or neomycin C or derivative
  13.3    ...Paromomycin or derivative (e.g., neomycin E, etc.)
  13.4    ...Antibiotic XK or derivative
  13.5    ...Butirosin or derivative (e.g., ambutyrosin, etc.)
  13.6    ...Gentamicin or derivative
  13.7    ...Kanamycin or derivative
  13.8    ....Carbonyl bonded directly to kanamycin nitrogen
  13.9    ...Sisomicin or derivative
  14      ...Streptomycin or derivative
  15      ....Dihydrostreptomycin or derivative
  16      ....Addition compounds
  16.1    ...Fortimicin or derivative
  16.2    ...Lincomycin or derivative
  16.3    ....Cyano or -COO- containing
  16.4    ....Additional sulfur containing
  16.5    ....Phosphorus or halogen containing
  16.6    ...Neamine or derivative (e.g., neomycin A, etc.)
  16.7    ...Kasugamycin or derivative
  16.8    ...Antibiotics
  16.9    ....Purification or recovery
  17.1    ...Boron, phosphorus, heavy metal or aluminum containing
  17.2    ...Nitrogen containing
  17.3    ....Nitrogen containing hetero ring
  17.4    .....Nitrogen in aglycone moiety
  17.5    ....Sulfur containing (e.g., methylthiolincosaminide,
               etc.)
  17.6    .....Nitrogen or sulfur in aglycone moietyy
  17.7    ....Nitro or nitroso containing
  17.8    .....Nitrogen in aglycone moiety
  17.9    ....Nitrogen in aglycone moiety
  18.1    ...Polycyclo ring system (e.g., hellebrin, etc.)
  18.2    ...Containing -C(=X)X- wherein the X's are the same or
              diverse chalcogens
  18.3    ...Plural oxyalkylene groups bonded directly to each other
  18.4    ...Halogen containing
  18.5    ...Processes
  18.6    ....Reacting a carbohydrate with an organic -O- containing
               compound (e.g., reacting glucose with methanol, etc.)
  18.7    ..Nitrogen containing
  20      ...Chitin or derivative
  21      ...Heparin or derivative
  22.1    ...N-glycosides, polymers thereof, metal derivatives (e.g.,
              nucleic acids, oligonucleotides, etc.)
  23.1    ....DNA or RNA fragments or modified forms thereof (e.g.,
               genes, etc.)
  23.2    .....Encodes an enzyme
  23.4    .....Encodes a fusion protein
  23.5    .....Encodes an animal polypeptide
  23.51   ......Hormone
  23.52   ......Interferon
  23.53   ......Immunoglobulin
  23.6    .....Encodes a plant polypeptide
  23.7    .....Encodes a microbial polypeptide
  23.71   ......Bacillus thuringiensis insect toxin
  23.72   ......Viral protein
  23.74   ......Fungal protein
  24.1    .....Non-coding sequences which control transcription or
                translation processes (e.g., promoters, operators,
                enhancers, ribosome binding sites, etc.)
  24.2    .....Non-coding sequences having no known regulatory
                function which are adaptors or linkers for vector or gene
                contruction
  24.3    .....Probes for detection of specific nucleotide sequences
                or primers for the synthesis of DNA or RNA
  24.31   ......Probes for detection of animal nucleotide sequences
  24.32   ......Probes for detection of microbial nucleotide
                 sequences
  24.33   ......Primers
  24.5    .....Nucleic acid expression inhibitors
  25.1    ....3'-5' linked RNA
  25.2    ....2'-5' linked RNA
  25.3    ....Synthesis of polynucleotides or oligonucleotides
  25.31   .....Deprotection step
  25.32   .....Labels or markers utilized (e.g., radiotracer,
                affinity, fluoroescent, phosphorescent, markers, etc.)
  25.33   .....Pentavalent phosphorus compound utilized
  25.34   .....Trivalent phosphorus compound utilized
  25.4    ....Separation or purification of polynucleotides or
               oligonucleotides
  25.41   .....Extraction processes (e.g., solvent extraction
                process, etc.)
  25.42   ......Denaturant utilized
  25.5    ....Homopolymers having repeating sequences of four or more
               identical nucleotide units
  25.6    ....Nucleic acids which include two or three nucleotidee
               units
  26.1    ....Phosphorus containing N-glycoside wherein the N is part
               of an N-hetero ring
  26.11   .....The phosphorus is part of a ring
  26.12   ......The N-hetero ring is part of a purine ring system
  26.13   .......Adenine or substituted adenine
  26.14   ......The N-hetero ring is a diazine or a diazole ring,
                 including hydrogenated
  26.2    .....Plural phosphorus atoms in N-glycoside
  26.21   ......Plural phosphorus atoms bonded directly to the same
                 chalcogen in a chain (e.g., pyrophosphates, polyanhydrides
                 of phosphorus acids, etc.)
  26.22   .......Both terminal phosphorus atoms are esterified by
                  organic groups wherein one of these organic groups is the
                  sugar moiety
  26.23   ........Exactly two phosphorus atoms in the chain (e.g.,
                   coenzyme A, etc.)
  26.24   .........NAD (nicotinamide adenine dinucleotide) and
                    derivatives thereof
  26.25   .........FAD (flavin adenine dinucleotide) and derivatives
                    thereof
  26.26   .......Triphosphates (in same chain)
  26.3    ......Plural monophosphate groups (e.g., adenosine-3',
                 5'-biscarboxymethyl phosphonate, cytidine nucleoside
                 diphosphate, etc.)
  26.4    .....Cobalamin nucleotides (e.g., vitamin B-12, etc.)
  26.41   ......Processes of preparing or labelling
  26.42   ......Processes of concentraction, separation, recovery, or
                 extraction (e.g., recovery from organ extracts, from
                 fermentation broth, from sewage sludge, etc.)
  26.43   .......Adsorbent used (e.g., activated alumina, ion
                  exchange resins, etc.)
  26.44   .....Cobalamin analogs (i.e., compounds wherein the
                benzimidazole ring system has been replaced by another
                organic ring structure, or compounds wherein cobalt has
                been removed or replaced by another metal, or is
                substituted by a group other than -OH or -CN)
  26.5    .....Plural N-glycosidic moieties bonded to the same
                phosphorus ester group
  26.6    .....Labelled (e.g., tagged with radioactive tracer,
                fluorescent marker, intercalator, etc.)
  26.7    .....The N-hetero ring is part of a bicyclic ring system
  26.71   ......Preparing purine nucleotides
  26.72   .......Guanosine nucleotide preparation
  26.73   ......Separation or purification of purine nucleotides
  26.74   ......Inosine nucleotide
  26.8    .....The N-hereto ring is six-membered and monocyclic
                (e.g., uridine-5'-mono- phosphate, etc.)
  26.9    .....The N-hereto ring is five-membered (e.g., 1-
                -D-riboburanosyl-1, 2,3-
                triazole-4-carboxamide-5'-phosphate, etc.)
  27.1    ....N-glycosides wherein the N is part of an N-hetero ring
               which hetero ring is part of a polycyclo ring system
               containing an N-hetero ring and an additional hetero ring
               (e.g., rebeccamycin, etc.)
  27.11   .....Preparing by cleaving nucleic acids or by attaching an
                N-heterocyclic base to a sugar ring
  27.12   .....Separation or purification (e.g., resolving isomericc
                mixtures, etc.)
  27.13   .....Bicyclic ring system consisting of the N-hetero ring
                fused to another hetero ring (e.g., 2-azaadenines,
                6-azaadenines, etc.)
  27.14   ......Multideoxy or didehydro
  27.2    ......The bicyclic ring system consists of a 1,3-diazine
                 ring, which may be hydrogenated, fused to a five-membered
                 N-hetero ring (e.g., purine isoesters like tubercidin,
                 toyocamycin, sangivamycin, sparsomycin A, etc.)
  27.21   .......The five-membered N-hetero ring is 1,3-diazole,
                  which may be hydrogenated (e.g., 6-chloropurine
                  nucleoside, nebularin, etc.)
  27.22   ........Carbonyl, thiocarbonyl, or nitrogen, other than as
                   nitro or nitroso, bonded directly to the sugar ring
  27.23   ........Carbonyl, thiocarbonyl, additional hetero ring or
                   nitrogen, other than as nitro or nitroso, attached
                   indirectly to the sugar ring by acyclic nonionic
                   bonding
  27.3    .........Adenosyl
  27.31   ..........S-Adenosyl-L-methionine,
                     S-Adenosyl-L-homocysteine, salts, or esters thereof
  27.4    ........Arabinose is sugar moiety
  27.5    ........Ketose is sugar moiety (e.g., decoyinine,
                   psicofuranosylpurines, etc.)
  27.6    ........Nitrogen, other than nitro or nitroso, bonded
                   directly to the 6-position of a purine ring system
                   (e.g., adenosine, etc.)
  27.61   .........Additional nitrogen bonded directly to the
                    2-position of the purine ring system
  27.62   .........Nitrogen, chalcogen, or additional carbon bonded
                    directly to the 6-position nitrogen (e.g., 6-position
                    nitrogen is substituted, etc.)
  27.63   ..........Halogen, chalcogen, or cyano bonded directly to
                     the 2-position of the purine ring system
  27.7    .........Chalcogen, halogen, or benzene bonded directly to
                    carbon of the purine ring system (e.g., isoguanosine,
                    2-fluoroadenosine, etc.)
  27.8    ........Chalcogen bonded directly to the 6- or 2-position
                   of a purine ring system (e.g., inosine, etc.)
  27.81   .........Nitrogen, other than nitro or nitroso, bonded
                    directly to the 2-position of the purine ring system
                    (e.g., guanosine, etc.)
  28.1    ....N-glycosides wherein the N is part of a six-membered
               hetero ring (e.g., diazines, etc.)
  28.2    .....Multideoxy or didehydro
  28.3    .....The N-hetero ring is a triazine ring, including
                hydrogenated (e.g., 6-azauridine, etc.)
  28.4    .....The N-hetero ring is a 1,3-diazine ring, including
                hydrogenated (e.g., pyrimidines, etc.)
  28.5    ......Nitrogen, other than nitro or nitroso, bonded
                 directly to the 4-position, and chalcogen bonded directly
                 to the 2-position of the diazine ring (e.g., cytidines,
                 etc.)
  28.51   .......Having chalcogen, carbonyl, or thiocarbonyl bonded
                  directly to the 4-position substituent nitrogen
  28.52   .......Halogen or alkyl group of 1-5 carbon atoms bonded
                  directly to the 5-position of the diazine ring
  28.53   ......Chalcogen bonded directly to the 2- and 4-positionss
                 of the diazine ring (e.g., uridine, etc.)
  28.54   .......Alkyl, or substituted alkyl, bonded directly to the
                  5-position of the diazine ring (e.g., thymidine, 5-methyl
                  uridine, etc.)
  28.55   .......Halogen bonded directly to the 5-position of the
                  diazine ring (e.g., 5-fluorouridine, etc.)
  28.6    ....N-glycosides wherein the N is part of a five-membered
               hetero ring (e.g., selenazole nucleosides, pyrrole
               nucleosides, etc.)
  28.7    .....Plural nitrogens in the N-hetero ring (e.g.,
                triazoles, etc.)
  28.8    ......The N-hetero ring is a 1,3-diazole ring, including
                 hydrogenated (e.g., imidazoles, etc.)
  28.9    .......Benzimidazoles
  29.1    ....Nitrogen of N-glycoside is acyclic nitrogen
  29.11   .....N-hetero ring bonded directly or indirectly to the
                acyclic nitrogen
  29.12   .....The acyclic nitrogen is part of a urea or thiourea
                group
  29.13   .....Sulfur containing (e.g., sulfides, sulfones, sulfates,
                sulfonamides, etc.)
  29.2    ...C-glycosides wherein the sugar ring is bonded directly
              to carbon of an N-hetero ring (e.g., 9-deazaadenosines,
              etc.)
  30      ...Cellulose derivatives
  31      ....Nitrogen containing hetero ring (e.g., morpholine, etc.)
  32      ....Esters
  33      .....Sulfur containing acid
  34      .....Phosphorus containing acid
  35      .....Nitrates
  36      ......Mixed esters
  37      ......With pretreatment process
  38      ......Subsequent treatment process
  39      .......Comminuting
  40      .......Recovery from photographic film
  41      .......Viscosity or degree of polymerization changed (e.g.,
                  degrading, cross linking, etc.)
  42      .......Stabilizing
  43      ....Ethers
  44      .....Mixed ethers
  45      ...Starch derivatives
  46      ....Dextrin derivatives
  47      ....Cross-linked
  48      ....Esters
  49      .....Ether-esters or mixed esters
  50      ....Ethers
  51      ...Dextran derivatives
  52      ...Gum derivatives
  53      ...Oxygen double bonded and nitrogen bonded directly to the same
              carbon
  54      ...Sulfur containing
  55      ...Plural nitrogens containing
  55.1    ....Polysaccharides
  55.2    ...Glucosamine containing
  55.3    ...Processes
  56      ..Cellulose or derivative
  57      ...Regenerated cellulose
  58      ...Esterss
  59      ....Sulfur containing acid
  60      .....Xanthate or viscose
  61      ......Subsequent treatment process
  62      ....Phosphorus containing acid
  63      ....Carboxylic acid esters
  64      .....Mixed carboxylate esters
  65      ......Propionate, butyrate or isobutyrate containing
  66      .....Ether-esters
  67      .....Formates
  68      .....Propionates, butyrates or isobutyrates
  69      .....Acetates
  70      ......With pretreatment process
  71      .......Acetic acid utilized in pretreatment
  72      ........Halogen containing compound utilized in process
  73      ........Sulfur containing compound utilized in pretreatment
  74      .......Sulfur containing compound utilized in pretreatment
  75      .......Halogen containing compound utilized in process
  76      ......Subsequent treatment process
  77      .......Comminuting or centrifuging
  78      .......Recovery from photographic film
  79      .......Corrosiveness reduced
  80      .......Viscosity or degree of polymerization changed (e.g.,
                  degrading, cross linking, etc.)
  81      .......Stabilizing
  82      .......Halogen containing compound utilized in process
  83      ......Halogen containing compound utilized in process
  84      ...Ethers
  85      ....Subsequent treatment process
  86      .....Comminuting
  87      .....Liquid interaction properties changed (e.g., solubility,
                absorbability, etc.)
  88      .....Viscosity, degree of polymerization or heat stability
                changed (e.g., degrading, cross-linking, etc.)
  89      .....Acid employed in subsequent treatment
  90      ....Mixed ethers
  91      .....Hydroxyalkyl containing
  92      ....Sulfur containing
  93      ....Unsaturated
  94      .....Aromatic nucleus containing
  95      ....Hydroxyalkyl containing
  96      .....Hydroxyethyl
  97      ....Carboxyalkyl or salts thereof
  98      .....Carboxymethyl or salts thereof
  99      ....Alkyl or cycloalkyl
  100     .....Ethyl
  101     ...Metal containing
  102     ..Starch or derivative
  103     ...Dextrin or derivative
  104     ...Aldehyde reaction product
  105     ...Oxidized starch or derivative
  106     ...Cross-linked
  107     ...Esters
  108     ....Ether-esters or mixed esters
  109     ....Phosphorus or sulfur containing
  110     ....Carboxylic
  111     ...Ethers
  112     ..Dextran or derivative
  113     ...Iron containingg
  114     ..Gums or derivatives
  115     ..Esters
  116     ...Ether-esters
  117     ...Phosphorus containing
  118     ...Sulfur containing
  119     ...Carboxylic
  120     ..Ethers
  121     ..Metal containing
  122     ..Sulfur or halogen containing
  123     ..Plural diverse saccharides containing (e.g., hetero
             polysaccharides, etc.)
  123.1   ..Polysaccharides
  123.12  ...Glucans (e.g., pullulan, etc.)
  123.13  ...Disaccharides (e.g., maltose, sucrose, lactose,
              formaldehyde lactose, etc.)
  124     ..Processes
  125     ...Isomerization
  126     ...Polymerization
  127     ...Purification or recovery
  128     ....From plant material