Class/Subclass | Subject Matter | Groups Guaranteed Coverage |
C01B | Nonmetallic elements and their compounds | all groups |
C01C | Ammonia, cyanogen and their compounds | all groups |
C01D | Alkali metal compounds | all groups |
C01F | Compounds of Be, Mg, Al, Ca, Sr, Ba, Ra, Th or the rare earth metals | all groups |
C01G | Compounds containing metals covered by C01D or C01F | all groups |
C02F | Treatment of water, wastewater, sewage or sludge | 1/28, 1/42-1/469, 1/50-1/72, 1/76-1/78, 5/00-5/14, 9/08, 11/14 |
C03B | Manufacture, shaping or supplementary processes for glass, mineral or slag wool | 8/00-8/04, 37/014-37/018 |
C03C | Chemical compositions and surface treatment of glass, mineral or slag wool | 00/00-25/06, 25/24-25/48, 25/66 |
C04B | Lime, magnesia, cements, ceramics, and refractories | 00/00-7/345, 7/60-16/12, 22/00-103/50, 103/54-103/69, 111/10-111/28 |
C05B | Phosphate fertilizers | all groups |
C05C | Nitrogen fertilizers | all groups |
C05D | Inorganic fertilizers | all groups |
C05G | Fertilizer mixtures | all groups |
C06B | Explosives or thermic compositions | 23/00-49/00 |
C06C | Detonating or priming devices, fuses, chemical lighters and pyrophoric compositions | 15/00 |
C06D | Smoke or mist generation, gas-attack compositions and gas generation for blasting or propulsion | all groups |
C06F | Matches and their manufacture | 3/00-3/08 |
C07B | General methods and apparatus for organic chemistry | all groups |
C07C | Acyclic or carbocyclic compounds | all groups |
C07D | Heterocyclic compounds | all groups |
C07F | Acyclic, carbocyclic or heterocyclic compounds containing elements other than C, H, halogen, O, N, Se or Te | all groups |
C07G | Compounds of unknown constitution | all groups |
C07H | Sugars and their derivatives, nucleosides, nucleotides and nucleic acids | all groups |
C07J | Steroids | all groups |
C07K | Peptides | all groups |
C07M | Indexing scheme associated with subclasses C07B to K | all groups |
C08B | Polysaccharides and derivatives | all groups |
C08C | Treatment or chemical modification of rubbers | all groups |
C08F | Macromolecular compounds obtained by reactions only involving C-to-C unsaturated bonds | all groups |
C08G | Macromolecular compounds obtained otherwise than by reactions only involving C-to-C unsaturated bonds | all groups |
C08H | Derivatives of natural macromolecular compounds | all groups |
C08J | Work-up, compounding and after-treatment | all groups |
C08K | Inorganic or non-macromolecular compounding ingredients | all groups |
C08L | Compositions of macromolecular compounds | all groups |
C09B | Organic dyes and mordants | all groups |
C09C | Treatment of inorganic materials to enhance their pigmenting or filling properties | all groups |
C09D | Coating compositions, inks, lacquers, etc. | all groups |
C09F | Natural resins | all groups |
C09G | Polishing compositions | all groups |
C09H | Preparation of glue or gelatin | 00/00, 3/00-7/00 |
C09J | Adhesives | 00/00, 1/00-4/06, 9/00-201/10 |
C09K | Materials for miscellaneous applications | 00/00, 5/00-15/32, 17/02, 17/06-17/08, 17/12-17/30, 17/36-21/14 |
C10C | Work-up of tar, pitch, asphalt or bitumen | 1/08-1/12, 1/20, 3/02-3/04, 5/00 |
C10G | Petrochemistry | 00/00-7/10, 9/00-9/02, 9/06, 9/34-9/38, 11/00-21/28, 25/00-71/00, 73/00-75/04 |
C10H | Production of acetylene by wet methods | all groups |
C10J | Production of fuel gases | 1/00-3/70 |
C10K | Purifying or modifying CO-containing combustible gas | all groups |
C10L | Fuels | 00/00-5/40, 7/00-11/04 |
C10M | Lubricating compositions | all groups |
C10N | Indexing scheme associated with subclass C10M | 00/00-20/04, 30/00-30/20, 40/26-40/28, 60/00-80/00 |
C11B | Animal and vegetable oils, fats and waxes and essential oils for perfumes | all groups |
C11C | Fatty acids and chemical modification of fats, oils or fatty acids | 00/00-3/14 |
C11D | Detergent compositions and soaps | 00/00-15/04, 19/00 |
C12F | Recovery of byproducts of fermented solutions | 00/00, 3/00-3/04, 5/00 |
C12G | Wine and other alcoholic beverages | 1/022, 1/04, 1/10-1/12, 3/12 |
C12H | Pasteurization, sterilization, preservation, purification, etc., of alcoholic beverages | 1/04-1/056, 1/10, 1/14-1/15, 3/00-3/04 |
C12J | Vinegar and its preparation | 00/00-1/06, 1/10 |
C12N | Microorganisms and enzymes | 1/08, 1/11, 1/13, 1/15, 1/19, 1/21-1/32, 1/38, 5/10-5/28, 7/01, 7/06, 9/00-11/18, 15/00-15/90 |
C12P | Fermentation for synthesis or separation of isomers | all groups |
C12Q | Enzyme- and microorganism-based measuring or testing methods | 1/25-1/62, 1/66-1/68 |
C12S | Enzyme- and microorganism-based processes for liberation, separation or purification of compounds | 1/00-1/02, 3/02-3/04, 3/08, 3/14-3/20, 5/00 |
C13D | Production or purification of sugar juices | 3/00-3/18 |
C13J | Extraction of sugar from molasses | all groups |
C13K | Glucose, invert sugar, lactose, maltose and sugar synthesis by hydrolysis of di- or polysaccharides | all groups |
C14C | Chemical treatment of skins, hides and leather and tanning compositions | all groups |
C21B | Manufacture or iron and steel | 3/00-3/06, 5/00-5/04, 15/00-15/04 |
C21C | Processing or pig iron | 1/02-1/04, 5/06, 5/36, 5/54, 7/04-7/076 |
C21D | Metallurgy of ferrous metals | 1/56-1/613, 1/72-1/76, 3/00-5/00, 5/04-6/04 |
C22B | Production and refining of ferrous and nonferrous metals | 00/00-1/248, 3/00-9/187, 9/20-61/00 |
C22C | Alloys | 00/00-47/10, 47/14-47/18, 49/00-121/02 |
C22F | Metallurgy of nonferrous metals and alloys | all groups |
C22K | Indexing scheme associated with subclasses C21D, C22C or C22F | all groups |
C23C | Coating and surface treatment of metallic materials | 2/00-2/12, 4/04-4/10, 8/00-14/48, 14/54, 14/58-16/455, 16/46-16/48, 16/458, 16/52-30/00 |
C23D | Enamelling or vitreous layer application to metals | 1/00-7/00, 11/00 |
C23F | Surface treatment or corrosion and incrustation inhibition of metallic materials | 00/00-1/06, 1/10-13/16, 14/00-17/00 |
C23G | Chemical cleaning or degreasing of metallic materials | 00/00-1/36, 5/00-5/06 |
C25B | Electrolytic or electrophoretic processes for production of compounds or nonmetals | 1/00-7/00, 9/06-9/16, 11/00-13/08, 15/08 |
C25C | Electrolytic production, recovery or refining of metals | 00/00-3/06, 3/12, 3/18, 3/24-5/04, 7/08 |
C25D | Electrolytic and electrophoretic processes for production of coatings and electroforming | 1/12-1/22, 3/00-5/56, 9/00-13/10, 13/18, 13/20, 13/24, 15/00-15/02, 19/00, 21/11, 21/14-21/22 |
C25F | Electrolytic removal of materials from objects | 00/00-5/00 |
C30B | Crystal growth | 00/00-13/12, 13/34-15/04, 17/00-19/04, 23/00-23/02, 23/08-25/06, 28/00-29/58, 31/00-31/08 |