These eight parts are:
Part A: Life needs
Part b: homework; transport
Part c: chemistry; metallurgy
Part d: textiles; make paper
Part e: fixed buildings
Part f: mechanical engineering; Lighting; Heating; explosion
Part g: physics
Part h: electricity
Class numbers of departments: Class numbers of departments are marked with capital letters, such as Part A and Part B, etc.
Class name of department: the class name of each department generally indicates the technical scope of the department. Usually, there is no precise definition of the subject of class name, and the class name of a department often simply indicates the general characteristics of the subject range contained in the department. For example, the class name of part c is: chemistry; The class name of metallurgical part d is textile; Paper making.
Part of the content: In the English and Chinese versions, references and notes after part of the content are omitted. The content of the department only lists the outline of the major class number, major class name, minor class number and minor class name of the department.
Division: In order to make users have a general understanding of the contents of the department and help users understand the classification of technical topics, a division composed of informative titles is set up in the department. Division has no classification number, so in a complete classification number, there is no symbol representing division.
For example, Part A has four parts:
Branch: agriculture
Division: food; tobacco
Branch: personal or household goods
Branch: medical care; amusement
Categories: each department is divided into several categories according to different technical topics, and the class name of each category gives a comprehensive description of the technical topics contained in its subordinate subcategories.
Category number of category: the category number of each category consists of the category number of the department and its last two digits.
For example: a 01; a 6 1；
Class name of major categories: the class name of each major category indicates the subject content contained in the major category.
For example: A0 1 agriculture; Forestry; Animal husbandry; Hunting; Trap; Catch fish
For example: A6 1 Medicine or Veterinary Medicine; hygienics
Category index: there is a category index after some category names, which is just an informative summary of the category content. Help users find the location of related technical topics as soon as possible.
For example: large-scale C25 electrolysis or electrophoresis process; Category index of the equipment used.
Small classes: Each large class includes one or more small classes. The principle of international patent classification is to define the subject scope of each subclass as accurately as possible through the class name of each subclass and the relevant references or comments of this subclass.
Class number of small class: each small class number consists of the class number of large class plus a capital letter.
For example: a 21b; ;
Class name of small class: the class name of small class represents the technical topic content of small class as accurately as possible.
For example: A2 1B food oven; Baking machinery or equipment
Small class index: there is a small class index after some small class names, and the large groups and groups to which small classes belong are classified according to technical topics. Users can directly enter the required technical topic classification position according to the index. Therefore, it is an informative summary of this subclass.
Groups: each subclass is subdivided into many groups (collectively referred to as main groups and groups)
Class number of the group: the class number of each group consists of the class number of the small class plus two numbers separated by a slash "/".
The class number of the main group: it consists of the small class number plus one to three digits, the slash "/"and the number "00".
For example: A0 1B 3/00, B62K 19/00, C07C21/00.
Class name of the main group: The class name of the main group clearly indicates the range of useful technical topics that the invention can search.
For example: B62K 19/00 bicycle frame
Category number of the group: the main group can be subdivided into several groups. The class number of each group consists of the small class number plus one to three digits, followed by the slash "/"symbol, and at least two digits except "00".
For example: A23L 1/32 egg products.
A23L 1/322 Egg Roll
A23L 1/325, aquatic food; Fish products, fish meat; Fish egg substitute
A23L 1/326 fish or fish meal; Small particles, lumps or flakes
A23L 1/327 ... Fish extract
A23L 1/328 ... fish eggs, such as caviar; Fish egg substitute
A23L 1/33 Crustaceans
3/358 A23L ... Inorganic compounds
A23L 3/3589 ... The use of liquid storage equipment
A23L 3/3598 ... The use of solid preservation equipment
Any third digit or subsequent digit after the slash "/"symbol should be understood as the decimal subdivision digit before it. For example, A23L 1/322 should be searched after A23L 1/32 and before A23L 1/33; A23L 3/3589 should be searched after A23L 3/358 and before A23L 3/3598.
Class name of the group: the class name of the group clearly indicates that you can search a technical topic range within a large group. Adding one or several dots before the class name of the group indicates the hierarchical position of the group, indicating that each group is a subdivision of the group above it, which is closest to it and less than it by one dot.
In all cases, when reading a group class name, we must also consider the class name of the restricted group to which it belongs.
For example: A63B 53/00 Golf Club
A63B 53/ 12 ... metal long handle
A63B 53/ 12 The class name of this group should be: metal long-handled golf clubs.
A63B 53/00 golf clubs
A63B 53/04 ... club head
Although the class name of A63B 53/04 is a complete statement, it belongs to the 53/00 group. Because it is a subdivision of 53/00 groups, the club head is limited to golf club heads.
Complete classification number
A complete classification number consists of symbols representing departments, categories, subcategories, main groups or groups.
For example: A01b100, A0 1B 1/24.