Derwent Innovations Index SM目录| 索引| 关闭帮助德温特分类代码
Derwent 采用适用于所有技术的简单分类系统对专利文献进行分类。Derwent 的学科领域专家对所有专利统一使用这种独特的分类方法，从而可以在特定的技术领域进行高效精确的检索。
在数据库中，专利分为以下三大领域。
z化学 (A - M)
z工程 (P - Q)
z电气和电子 (S - X)
这些领域又分为 20 个主要的学科领域或专业。并将其分别指定为 A-M（化学）、P-Q（工程）和 S-X（电气和电子）。
这些专业再进一步分类。每个类别都包含代表专业的字母，后面跟随两位数字。例如，X22 是汽车电工学的分类符号，C04 是所有化肥的分类符号。
与其他检索条件组配使用时，这些分类允许您精确有效地将检索范围限制为相关的学科领域。例如，模
糊词 WARN 可以与 X22（汽车电工学）组配以便只检索有关汽车报警设备的参考文献。Derwent 对各个条目进行交叉分类以确保检索时可以检索到所有感兴趣的专利。 检索辅助工具
单击“检索”和“高
级检索”页面上的检
索辅助工具 图标
可查看所有可用的德
温特分类代码。
打印此文件
此文件可打印出约 30
页。
在此页上查找
使用浏览器的检索/查
找功能，在此文件中
检索文本。
化学 (A - M)
单击一个专业可查看其分类代码的列表。
研究生可以结婚吗z A —聚合物和塑料
z B —医药
z C —农业化学品
z D —食品、清洁剂、水处理和生物工艺学
z E —常规化学品
z F —纺织和造纸
z G —印刷、涂料、摄影
z H —石油
z J —化学工程
z K —核能利用、化学爆破和防爆
z L —耐火材料、陶瓷、水泥和电化学
z M —冶金学
部分 A：聚合物和塑料
下表的第一栏中为德温特分类代码。
A1 ADDITION AND NATURAL POLYMERS
A11Polysaccharides; natural rubber; other natural polymers (only a restricted range of (modified) natural polymers are included.Thus starch would be excluded, but chemically modified starch included).
A12Of di-and higher olefins; acetylenics; nitroso compounds.
A13Of aromatic mono-olefins; including polystyrene.
A14Of other substituted mono-olefins; including PVC, PTFE.
A17Of unsubstituted aliphatic mono-olefins; including polyethylene.
A18Addition polymers in general.
A2 CONDENSATION POLYMERS
A21Epoxides; aminoplasts; phenoplasts.
A23Polyamides; polyesters.(including polycarbonates, polyesteramides); alkyds; other unsaturated polymers.
A25Polyurethanes; polyethers.
A26Other condensation polymers including silicone polymers and polymides (mineral silicates and similar materials would not usually appear in Section A).
A28Condensation polymers in general.
A3 PROCESSING: GENERAL ADDITIVES AND APPLICATIONS
A31Preliminary process.
A32Polymer fabrication - such as moulding, extrusion, forming, laminating, spinning.
小米手环1A35Other processing and general - including vulcanisation, welding of plastics and adhesive process.Testing.
A41MONOMERS AND CONDENSANTS
The are also included in Section E.
A60ADDITIVES AND COMPOUNDING AGENTS
If the usage is very restricted it may be classified under the individual polymer or process involved.
A8/9APPLICATIONS
A81Adhesives and binders - including chipboard.
A82Coatings, impregnations, polishes - excluding textile finishing.
上海交通大学网络教育学院
让世界充满爱作文A83Clothing, footwear.
A84Houhold and office fittings - including carpets and carbon paper.
A85Electrical applications.
A86Fancy goods, games, sports, toys.
A87Textile auxiliaries.
A88Mechanical engineering and tools eg valves, gears and conveyor belts.
A89Photographic, laboratory equipment, optical - including electrophotographic, thermographic us.
A91Ion-exchange resins, polyelectrolytes.
A92Packaging and containers - including ropes and nets.
A93Roads, building, construction flooring.
A94Semi-finished materials - fibres, films, foams.
A95Transport - including vehicle parts, tyres and armaments.
A96Medical, dental, veterinary, cosmetic.
A97Miscellaneous goods not specified elwhere - including papermaking, gramophone records, detergents, food and oil well applications.
部分 B：医药怎么练习肺活量
下表的第一栏中为德温特分类代码。
B01Steroids - including systems containing carbocyclic and/or heterocyclic rings fud onto the basic steroidal ring structure.
B02Fud ring heterocyclics.
B03Other heterocyclics.
B04Natural products and polymers.Including testing of body fluids (other than blood typing or cell counting), pharmaceuticals or veterinary compounds of unknown structure, testing of microorganism
s for pathogenicity, testing of chemicals for mutagenicity or human toxicity and fermentative production of DNA or RNA.General compositions.
B05Other organics - aromatics, aliphatic, organo-metallics, compounds who substituents vary such that they would be classified in veral of B01 - B05.
B06Inorganics - including fluorides for toothpastes etc.
B07General - tablets, dispenrs, catheters (excluding drainage and angioplasty), encapsulation etc, but not systems for administration of blood or saline or IV feeding etc.
部分 C：农业化学品
下表的第一栏中为德温特分类代码。
C01Organophosphorus; organometallic - ie compounds containing other than H, C, N, O, S and halogen.
C02Heterocyclic.
C03Other organic compounds, inorganic compounds and multi-component mixtures.Polymers and proteins.
C04Fertilirs - including urea and phosphoric acid production.Also soil modifiers and plant growth media.Chemical aspects of compost production.
C05Biological control - excluding veterinary medicine, but including u of microorganisms, predators and natural products.
C06Biotechnology - including plant genetics and veterinary vaccines.
C07Apparatus, formulation, general - including veterinary syringes, general formulations where the active compound is not central to the invention (for example, wettable powders) and analysis.
部分 D：食品、清洁剂、水处理和生物工艺学
下表的第一栏中为德温特分类代码。括号中为大致的 IPC。
D1FOOD AND FERMENTATION
D11Baking - including bakery products, flour, doughs, bakery ovens, dough transporting and/or handling equipment, pies and pasta, but not flour milling (A21).
D12Butchering, meat treatment, processing poultry or fish (A22).
D13Other foodstuffs and treatment - including prervation of food, milk, milk products, butter substitutes, edible oils and fats, non-alcoholic beverages, artificial sweeteners, food
additives and animal feed (A23B-L).
D14General foodstuffs machinery - excluding machines which can be classified in D11-13 (A23N, P).
D15Treating water, industrial waste and wage - including purification, sterilising or testing
water, scale prevention, treatment of wage sludge, regeneration of active carbon which has been ud for water treatment and impregnating water with gas eg CO2, but excluding marine anti-pollution devices and purification of water which will be recycled within an
industrial process (C02).
钓鱼风向口诀
D16Fermentation industry - including fermentation equipment, brewing, yeast production, production of pharmaceuticals and other chemicals by fermentation, microbiology,
production of vaccines and antibodies, cell and tissue culture and genetic engineering.
D17Sugar and starch industry (C07H, C13).
D18Skins, hides, pelts, leather and chemical treatment of tobacco, but excluding drying, wetting, cutting or shaping tobacco (A24, C14).
D2COSMETICS, DISINFECTANTS AND DETERGENTS
D21Preparations for dental or toilet purpos - including filling alloys, compositions for dentures or dental impressions, anti-caries chewing gum, plaque disclosing compositions,
toothpastes, cosmetics, shampoos, topical anti-sunburn compositions and toilet soaps
(A61K).
梦见打麻将是什么意思
D22Sterilising, bandages, dressing and skin-protection agents - including sterilising agents (other th
an for food), sutures, plaster casts, bioactive prosthes, contact lens, diapers, animal litter, timber prervatives, disinfectants, bactericidal detergents, deodorants, inct repellent compounds, moth proofers, sheep dip, inct attractants (where for cleaning air), flysprays and compositions for relieving inct bites and stings (A61L).
D23Oils, fats and waxes - including fatty acids, candles, esntial oils, but excluding butter (substitutes) and montan wax (C11B, C).
D24Soap (limited to metal salts of fatty acids which are ud for cleaning), solvent cleaners (C11D).
D25Detergents - other than soap and ud for cleaning (C11D).
部分 E：常规化学品
下表的第一栏中为德温特分类代码。
E1GENERAL ORGANIC
E11Containing P and/or Si.
E12Organometallics - ie containing other than H, C, N, O, S,
halogens, Si and P.
E13Heterocyclics.
宝宝囟门
E14Aromatics - ie containing at least one benzene ring.
E15Alicyclics.
E16Aliphatics - containing N and/or halogen.
E17Other aliphatics.
E18General hydrocarbon mixtures.
E19Other organic compounds general - organic compounds
of unknown or indefinite structure; general mixtures of
many types; organic reactions (eg nitration, resolution)
when applied generally.
E2DYESTUFFS
E21Azo - including diazonium compounds.
E22Anthracene - including tho containing more than 3
rings.
E23Heterocyclic.
E24Other dyes, all precursors.
E3GENERAL INORGANIC
E31Compounds of V, Nb, Ta, Cr, Mo, W, Mn, Tc, Re, Fe,
Ru, Os, Co, Rh, Ir, Ni, Pd, Pt, Pa, V and subquent
actinides.
E32Compounds of Ti, Zr, Hf, Cu, Ag, Au, Zn, Cd, Hg, Ga,
In, Te, Ge, Sn, Pb, As, Sb, Bi.
E33Compounds of Be, Mg, Ca, Sr, Ba, Ra, Sc, Y, La, Ac,
Al, lanthanides (Rare-earths), Th.
E34Compounds of Li, Na, K, Rb, Cs, Fr.
E35Ammonia, cyanogen and their compounds - including
HCN and cyanamide, but not hydrazine.
E36Non-metallic elements, mi-metals (Se, Te, B, Si) and
their compounds (except for E35).
E37Mixtures of many components; inorganic reactions and
process of general applicability.
部分 F：纺织和造纸
下表的第一栏中为德温特分类代码。括号中为大致的 IPC。
F01Threads and fibres - natural or artificial; spinning - including the production of mineral and carbon fibres (D01).
F02Yarns - mechanical finishing of yarns or ropes; warping or beaming (D02, D07).
F03Weaving - including finished products (D03).
F04Braiding, knitting - including trimmings and non-woven fabrics (D04).
F05Sewing, embroidering, tufting - including finished products (D05).
F06Chemical-type treatment of textiles (D06B, L, M, P, Q).
F07Other textile applications - including clothing design, accessories and fasteners (D06C, F, G, H, J, L, M).
F08Flexible sheet materials - consisting of polymer-coated fibrous web, including end products not classified in other ctions (D06N).
F09Paper-making production of cellulo, chemical treatment of wood - including chipboard and fibre-board (D21).
部分 G：印刷、涂料和摄影
下表的第一栏中为德温特分类代码。括号中为大致的 IPC。
G01Inorganic pigments and non-fibrous fillers (C09C).
G02Inks, paints, polishes, polymer-bad paints and inks are also classified in Section A (C09D, F, G).
G03Adhesives - excluding dispenrs.Polymeric adhesives are also classified in Section A (C09H, J).
G04Miscellaneous compositions - including luminescent and tenebrescent materials, de-icing/ de-misting compositions, mastics, heat transfer compositions and arosol-can filling
mixtures (C09H).
