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This is followed by a two-digit number to give a "class symbol" ("A01" represents "Agriculture; forestry; animal husbandry; trapping; fishing"). The final letter makes up the "subclass" (A01B represents "Soil working in agriculture or forestry, parts, details, or accessories of agricultural machines or implements, in general"). The subclass is then followed by a 1- to 4-digit "group" number, an oblique stroke and a number of at least two digits representing a "main group" ("00") or "subgroup". A
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227:(SIPO) agreed with the EPO that as of January 2014, SIPO would classify newly published patent applications in certain technical fields into the CPC. First SIPO staff will be trained by EPO. Starting in 2016, SIPO will strive to classify its new patent applications according to the CPC in all technical areas. The classification data is expected to be shared with the EPO.
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Each classification term consists of a symbol such as "A01B33/00" (which represents "tilling implements with rotary driven tools"). The first letter is the "section symbol" consisting of a letter from "A" ("Human
Necessities") to "H" ("Electricity") or "Y" for emerging cross-sectional technologies.
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Patent publications are each assigned at least one classification term indicating the subject to which the invention relates and may also be assigned further classification and indexing terms to give further details of the contents. The CPC system has over 250,000 categories.
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The CPC scheme is accompanied by a set of CPC Definitions, which are documents which explain how to use the CPC scheme for classifying and searching a specific technology. A part of the CPC Definition related to the scheme A01B is shown in the second figure.
234:(KIPO) announced the launch of a pilot project in which KIPO will classify some of its patent documents using the CPC system. The project has been said to mark a major step towards KIPO classifying all of its patent collection using the CPC.
241:) agreed that as of January 2016, Rospatent will classify patent documents currently being processed into the CPC, and begin to classify previously published patent documents in 2017. The data will be shared with the EPO.
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248:(IMPI) agreed that as of January 2017, IMPI will classify patent documents currently being processed into the CPC, and begin to publish patent applications (A) and granted patent (B) and
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The text in curly brackets {..} refers to text provided by the CPC classification scheme. The rest of the text refers to text originating from the
International Patent Classification.
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The patent offices of several EPO member states also use CPC, for example those of
Austria, Finland, Greece, the United Kingdom, Spain (
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assigns a classification to the patent application or other document at the most detailed level which is applicable to its contents.
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Both the EPO and USPTO have been using the CPC since 1 January 2013. It replaced the ECLA system and will replace by 2015 the
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355:"Introduction to the Cooperative Patent Classification (CPC); EPO and USPTO Bi-lateral Classification System"
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503:"Co-operation with Russia and Eurasian region intensifies: Language barrier in patent information removed"
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An example of the CPC classification scheme in the area of agriculture is shown in the figure.
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On 26 September 2013, the EPO and the
Russian Federal Service for Intellectual Property (
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205:(USPC) as the official patent classification scheme of both the EPO and the USPTO.
477:"USPTO and KIPO Announce Launch of Cooperative Patent Classification System Pilot"
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This classification closely follows the
International Patent Classification.
380:"3rd EPO-USPTO CPC Annual Meeting with national offices classifying in CPC"
409:"Europe and China agree to use same patent classification system (CPC)"
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40:(ECLA), which itself was a more specific and detailed version of the
220:(MoU) like Chile (INAPI), Canada (CIPO), Australia and Israel.
307:"The Cooperative Patent Classification Introduction to the CPC"
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447:(2, June 2013). European Patent Office: 12. Archived from
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documents in 2017. The data will be shared with the EPO.
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36:(USPTO). The CPC is substantially based on the previous
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28:system, which has been jointly developed by the
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140:Main group and subgroups (at least two digits)
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216:) and some other offices are negotiating a
563:(jointly managed by the EPO and the USPTO)
203:United States Patent Classification system
438:"SIPO and KIPO to classify using the CPC"
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34:United States Patent and Trademark Office
576:Cooperative Patent Classification search
567:Cooperative Patent Classification search
246:Mexican Institute of Industrial Property
105:Y: Emerging Cross-Sectional Technologies
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128:Section (one letter A to H and also Y)
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353:Kisliuk, Bruce (27 September 2012).
232:Korean Intellectual Property Office
42:International Patent Classification
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284:issue 4/2012, December 2012, p. 4.
230:On 5 June 2013, the USPTO and the
225:State Intellectual Property Office
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244:On 16 July 2015, the EPO and the
153:In the above example "A01B33/00"
18:Cooperative Patent Classification
529:"Co-operation with IMPI-Mexico"
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271:CPC replaces ECLA on Espacenet
38:European classification system
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332:"CPC Scheme and Definitions"
223:On 4 June 2013, the Chinese
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218:Memorandum of Understanding
137:Group (one to four digits)
87:C: Chemistry and Metallurgy
84:B: Operations and Transport
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96:F: Mechanical Engineering
445:Patent Information News
334:. EPO & USPTO. 2013
294:CPC Essentials I Part A
282:Patent Information News
595:Patent classifications
413:European Patent Office
134:Subclass (one letter)
93:E: Fixed Constructions
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30:European Patent Office
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26:patent classification
81:A: Human Necessities
509:. 26 September 2013
131:Class (two digits)
76:A01B CPC Definition
389:. 26 February 2016
276:2012-11-22 at the
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68:A01B CPC scheme
59:patent examiner
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102:H: Electricity
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449:the original
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539:24 November
393:24 November
309:. EPO. 2013
181:Main group
90:D: Textiles
338:9 November
296:, slide 12
256:References
99:G: Physics
571:Espacenet
239:Rospatent
169:Subclass
123:Hierarchy
48:Structure
589:Category
364:22 April
313:22 April
274:Archived
157:Section
458:23 June
360:. USPTO
197:History
24:) is a
487:5 June
419:4 June
175:Group
163:Class
580:USPTO
481:USPTO
452:(PDF)
441:(PDF)
383:(PDF)
358:(PDF)
541:2016
515:2013
489:2013
460:2013
421:2013
395:2016
366:2013
340:2013
315:2013
210:OEPM
16:The
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569:at
533:EPO
507:EPO
387:EPO
214:PRV
22:CPC
591::
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171:B
159:A
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
