The method of patent retrieval?

China patent retrieval method. Introduction The main retrieval tools of patents in China are International Patent Classification Table, International Design Classification Table and China Patent Index (published once every quarter). Each set consists of international patent classification number index, applicant and patent holder index, application number and patent number index), invention patent bulletin (shelf number F- 14), utility model patent bulletin (shelf number S- 15) and design patent bulletin (design patent bulletin). All three briefings are weekly. Before searching for patents, we must first understand the meaning of international patent classification number. For example, the international patent classification number A01b102a-the class number of parts, and each part is marked with capital letters from A to H, consisting of the class number of the part and two digits followed by the class number of A01b-the subclass. It consists of a large category number plus a capital letter A0 1B 1 (or A0 1b 1/00)- a large category number, and a small category number plus one to three digits and "/00" to form A01b/. For example: A01b1/02×××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××× Blasting Volume G-Physics Volume H-Electricity Volume IX-At the end of the user's guide, there are some explanations about the publication number, application number and issue number. The publication number, such as "CN1050324a" cn, indicates the number immediately after China cn. If it is "1", it means invention patent, "2" means utility model patent, and "2" means utility model patent. The volume and issue number in the index are the volume and issue number of the patent bulletin that issued the application, 1985 is the volume 1, the volume in 1986 is the volume 2, and so on, and the volume 198 is the volume 14. Second, the retrieval method of invention patents and utility model patents first determines the professional direction, thus determining which volume to find the required patent classification number. For example, if you want to find a patent related to sewage treatment and determine the patent number in Volume C Chemical Metallurgy Volume, first turn to 1 page "Department Directory" and find the major category number of sewage treatment C02C02...(2 1) C02F for the treatment of water, wastewater, sewage or sludge ... (2 1) As shown above, sewage. Looking through page 2 1, you can find the following information: CO2 treatment of water, wastewater, sewage or sludge C02F treatment of water, wastewater, sewage or sludge 1/02 treatment of water, wastewater or sewage 1/02 heating method 1/04 ‥ distillation or evaporation. If there is a clear goal, such as looking for only distillation or evaporation of sewage treatment methods, then we can know that the international classification number of the patent is C02F 1/04. If there is no clear goal, we might as well expand the scope to find more patent classification numbers in order to get more information. In the above example, the classification number C02F 1/04 has been found. According to this classification number, the issue number of this patent can be found in the classification number index of China Patent Index. The index of classification number is arranged in alphabetical order of classification number, that is, according to "A, B, C……", according to the same part (1 English letter). According to C02F104, we can find these information: international patent classification number, publication number, application number, applicant's invention name, release number C02F1/04CN183382A971091 69.2 Luchanglin Sewage Atomization Distillation Treatment Process and its Device 65438+ These information should be published from the following dataNo. cn 1638. According to the above two data, the patent abstract can be found in the 22nd Invention Patent Publication 1998 14. According to CN1KLOC-0/8333, Patent announcements are arranged according to the size of WeChat official account. Three. The retrieval method of utility model patent bulletin is the same as above. The retrieval method of design patents The classification system of design patents is different from that of invention and utility model patents, and it adopts the international design classification. The design classification number is represented by the combination of Arabic numerals, uppercase English letters and short horizontal lines. For example, 17-01-p 01194, the first two digits represent the category number, and17 represents the musical instrument category; The two digits after the major category number plus the first short horizontal line represent the minor category number, and 17-0 1 represents the minor category of keyboard instruments; The alphanumeric combination of the minor category number and the second short horizontal line represents the product catalog number, and17-01-P0194 represents the piano product catalog number. To retrieve design patents, we must first determine the product catalog number in the international design classification. Examples are as follows: If you want to check the patents of clothing supplies and accessories, you can find the subcategory number 02-07 of "clothing supplies and accessories" on the first page of the International Design Classification, and its page number is 5. Take the product catalog number 02-07 clothing supplies and accessories B03 10 embroidery bobbin B0398 as an example. Its product catalog number is 02-02-07-B0398. This information was found in the "Design Patents" section of China Patent Index (at the back of the book). Classification number, authorization announcement number, patent number, product name of the patentee using the design, issue number 02-07-b0398cn308565454d97327961.3 Hou Xiaoping's necktie. 5438+04-39 obtains the following data authorization announcement number CN3085654D, volume number 14-39, and this patent abstract can be found according to "CN3085654D" and "volume 14, No.39". 4. If you know the patentee, applicant, application number and patent number, you can look it up directly in China.