The content of the International Patent Classification Table includes all knowledge fields related to inventions and creations. The classification table*** is divided into 8 volumes, each volume is called a department, represented by English capital letters A-H. The IPC classification system is a hierarchical structure arranged from high to low. The order of setting is: department, branch, major category, subcategory, main group, and subgroup.
The eight parts are:
Part A: Living needs
Part B: Operations; Transportation
Part C: Chemistry; Metallurgy
Part D: Textiles; Papermaking
Part E: Fixed buildings
Part F: Mechanical engineering; lighting; heating; blasting
Department G: Physics
Department H: Electricity
Class number of the department: The class number of each department is marked with a capital English letter, such as Part A, Part B, etc.
Class name of a department: The class name of each department briefly indicates the technical scope included in the department. Usually, the subject of the statement of the class name is not precisely defined. The class name of a department is often a brief description. General features indicating the scope of subject matter covered by the department. For example, the class name of Part C is: Chemistry; Metallurgy. The class name of Part D is Textiles; Papermaking.
Part content: In the English and Chinese versions, the references and notes after the part content are omitted. The content of the department only lists the summary of the major category numbers, major category names, sub-category numbers, and sub-category names of the department.
Division: In order to give users a general understanding of the content of the department and help users understand the classification of technical topics, the department has set up divisions composed of informative titles. There is no class number for a division, so in a complete classification number, there is no symbol for the division.
For example: Department A has four divisions:
Division: Agriculture
Division: Food; Tobacco
Division Department: Personal or Household Articles
Division: Health Care; Entertainment
Category: Each department is divided into several major categories according to different technical subject areas, and the categories of each major category The name provides a comprehensive description of the technical topics included in each subcategory to which it belongs.
Classification number of major category: The classification number of each major category consists of the category number of the department followed by two digits.
For example: A01; A61;
Class name of major category: The class name of each major category indicates the subject content included in that major category
For example: A01 Agriculture; Forestry; Animal Husbandry; Hunting; Trapping; Fishing
For example: A61 Medicine or Veterinary Science; Hygiene
Category index: after the name of some major categories There is a category index, which is just an informative summary of the content in that category. Help users find relevant technical topic locations as quickly as possible.
For example: Category C25 Electrolysis or electrophoresis process; Category index of the equipment used
Subcategory: Each major category includes one or more subcategories. The principle of setting up the International Patent Classification is to define the subject scope covered by the subclass as accurately as possible through the class name of each subclass, combined with the relevant references or notes of the subclass.
Subclass number: Each subclass number consists of the major class number plus a capital letter.
For example: A21B;
Class name of the subclass: The class name of the subclass indicates the technical subject content of the subclass as accurately as possible.
For example: A21B Food oven; baking machinery or equipment
Subcategory index: There is a subcategory index after the name of some subcategories, which refers to the subcategory. The subordinate groups and subgroups are classified according to technical topics, so that users can directly enter the required technical topic classification position according to the index. So this is an informative summary of this subcategory.
Group: Each subcategory is subdivided into many groups (collectively referred to as main group and subgroup).
Group number: The category number of each group is added by the subcategory number. It consists of two numbers separated by a slash "/".
The class number of the main group: consists of the sub-class number plus a one to three-digit number, a slash "/" and the number "00".
For example: A01B 3/00, B62K 19/00, C07C 211/00
Class name of the main group: The class name of the main group clearly indicates that the technical subject useful for the invention can be retrieved scope.
For example: B62K 19/00 bicycle rack
Group number: The main group can be subdivided into several groups. The class number of each group consists of the subclass number plus a one to three digit number, followed by a slash "/" symbol, and then a number with at least two digits other than "00".
For example: A23L 1/32 ·Egg products
A23L 1/322 ·Egg rolls
A23L 1/325 ·Aquatic food products; fish products , fish meat; fish egg substitute
A23L 1/326 ··Fish meat or fish meal; small particles, lumps or flakes
A23L 1/327 ··Fish meat extract
A23L 1/328 ··Fish eggs, such as caviar; fish roe substitutes
A23L 1/33 ··Crustaceans
A23L 3/358 ··· Inorganic compounds
A23L 3/3589 ···Equipment using liquid storage
A23L 3/3598 ···Equipment using solid storage
Any one in The third or subsequent digit after the slash "/" symbol should be understood as the decimal subdivision of the number preceding it. For example: A23L 1/322 should be found after A23L 1/32 and before A23L 1/33 ;A23L 3/3589 should be searched after A23L 3/358 and before A23L 3/3598.
The category name of the group: The category name of the group clearly indicates that a technical subject range within the scope of the large group can be retrieved. One or more dots in front of the category name of the group indicate the hierarchical position of the group. , which means that each group is a subdivision of the group above it, closest to it, and one less dot than it.
In all cases, when a group class name is read out, the class name of the group to which it belongs and is bounded must also be taken into account.
For example: A63B 53/00 golf club
A63B 53/12·Metal long handle
The class name of the A63B 53/12 group should read: Golf clubs with metal long handles
A63B 53/00 golf clubs
A63B 53/04 ·Club heads
Although the A63B 53/04 type The name is a complete sentence, but it belongs to the 53/00 group. As its grade position shows, it is a subdivision of the 53/00 group, so the club head is limited to the golf club head.
Complete classification number
A complete classification number is composed of a combination of symbols representing a department, major category, subcategory, main group or subgroup.
For example: A01B 1/00, A01B 1/24