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technical-data/classification-ipc
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<classification-ipc> <edition>7</edition> <main-classification>C03Cclassification mxw-id="PCL163366969" load-source="docdb">C04B 1028/10<14</main-classification> <further-classification>A61Cclassification mxw-id="PCL163294003" load-source="docdb">C09K 133/083<18</further-classification> <further-classification>C03B 32/02</further-classification> <further-classification>C03C 10/08</further-classification> <further-classification>C03C 10/04</further-classification> <additional-info mxw-id="PCL750202757" load-source="docdb">C04B 38/10</additional-info> <linked-indexing-code-group group="J"> <main-linked-indexing-code mxw-id="PCL163299823" load-source="docdb">C04B 28/14</main-linked-indexing-code> <sub-linked-indexing-code mxw-id="PCL1106709533" load-source="docdb">C04B 24:26</sub-linked-indexing-code> <sub-linked-indexing-code mxw-id="PCL163417459" load-source="docdb">C04B 24:42</sub-linked-indexing-code> </linked-indexing-code-group> <linked-indexing-code-group group="K"> <main-linked-indexing-code mxw-id="PCL1106715491" load-source="docdb">C04B 28/14</main-linked-indexing-code> <sub-linked-indexing-code mxw-id="PCL163379057" load-source="docdb">C04B 24:12</sub-linked-indexing-code> <sub-linked-indexing-code mxw-id="PCL163388853" load-source="docdb">C04B 24:26</sub-linked-indexing-code> <sub-linked-indexing-code mxw-id="PCL163385607" load-source="docdb">C04B 24:42</sub-linked-indexing-code> </linked-indexing-code-group> <unlinked-indexing-code mxw-id="PCL163364197" load-source="docdb">C04B 111/27</unlinked-indexing-code> </classification-ipc> |
These are the international classifications at the time of publication for documents published before IPCR went into effect (pre-2006).
Element | INID | Description |
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edition | 51 | Effective dates: |
7: 2000-2006 |
6: 1995-1999 |
5: 1990-1994 |
4: 1985-1989 |
3: 1980-1984 |
2: 7/1974-1979 |
1: 9/1969-6/1974 | ||
main-classification | 51 | Format for all IPC is space-filled to 4-characters at main group: ANNA^^nn/n[...]. See XML example above. |
further-classification | 51 | Further/secondary classification. Same format as |
additional-info | 51 | Additional information |
linked-indexing-code-group | 51 | Indexing codes are used in association with classification symbols to provide technical information. Their format is similar to classification symbols, but they employ a colon in place of the slash. For example: ANNAnnnn:n[...]. Linked indexing codes show which classification symbols the indexing code is associated with. See Review of the Hybrid Systems in the IPC for more information. |
unlinked-indexing-code | 51 | Unlinked indexing codes are similar to linked indexing codes, but are not linked to an associated classification symbol. |
text | 51 | Not populated |
technical-data/classification-ipc/linked-indexing-code-group
Attribute | Description |
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group | Letter designation that identifies a linked indexing code group |
Element | Description |
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main-linked-indexing-code | Main/primary linked indexing code |
sub-linked-indexing-code | Sub/further linked indexing code |
technical-data/classifications-ipcr
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<classifications-ipcr> <classification-ipcr load-source="docdb">E02B 3/12 20060101AFI20100519BHCN</classification-ipcr> <classification-ipcr load-source="docdb">E02D 17/20 20100101CLI20100519BHCN</classification-ipcr> <classification-ipcr load-source="docdb">E02D 17/20 20060101ALI20100519BHCN</classification-ipcr> <classification-ipcr load-source="docdb">E02D 15/00 20060101ALI20100519BHCN</classification-ipcr> </classification-ipcr> </classifications-ipcr> |
Element | INID | Description |
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classification-ipcr | 51 | International Patent Classification (IPCR) |
technical-data/classification-locarno
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<classification-locarno> <main-classification load-source="patent-office">0202</main-classification> </classification-locarno> |
US Design only and those prepared for issue after June 30, 1996 include Locarno International Classification.
Element | INID | Description |
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edition | 51 | Edition of the classification schedule |
main-classification | 51 | Format follows CCSS, where CC is the Class (zero-filled) and SS is the subclass (zero-filled) |
further-classification | 51 | Further/secondary classification. Same format as |
technical-data/classification-national
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<classification-national country="US"> <main-classification load-source="patent-office">606041</main-classification> <further-classification load-source="patent-office">606001</further-classification> </classification-national> <classification-national country="US"> <text>395/500.05;500.06</text> </classification-national> <classification-national country="JP"> <main-classification load-source="patent-office">C02F 3/02 B</main-classification> <further-classification load-source="patent-office">C02F 3/10 A</further-classification> </classification-national> |
Attribute | Description |
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country | Indicates whether the classification code is based on the USPTO classification (US) or on JAPIO FIndex (JP). |
Element | INID | Description |
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edition | 52 | Edition of the classification schedule |
main-classification | 52 | The format for all US classes is zero-filled to a 3-character class and 3-character subclass. Characters following those 6 numbers are not zero-filled, and non-significant trailing zeros are removed. There is no punctuation present. Slashes and decimal points can be easily inferred for display purposes. |
further-classification | 52 | Further/secondary classification. Same format as |
additional-info | 52 | Additional information |
linked-indexing-code-group | 52 | Indexing codes are used in association with classification symbols to provide technical information. Their format is similar to classification symbols, but they employ a colon in place of the slash. For example: ANNAnnnn:n[...]. Linked indexing codes show which classification symbols the indexing code is associated with. See Review of the Hybrid Systems in the IPC |
for more information. | ||
unlinked-indexing-code | 52 | Unlinked indexing codes are similar to linked indexing codes, but are not linked to an associated classification symbol. |
text | 52 | In certain data parsing errors, the structure of the classification as delivered in the raw data cannot be established. In these cases, the raw classification data is output in the child: text. |
Note |
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As of 2015, the USPTO has transitioned from using the over 100-year-old U.S. Patent Classification (USPC) system to the Cooperative Patent Classification (CPC), a new classification system jointly developed with the European Patent Office (EPO). The USPTO currently only uses CPC for classifying new utility patent documents; however, it will continue to use U.S. Patent Classification for classifying design and plant patents. |
technical-data/f-term-info/f-terms
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<f-term-info> <f-terms> <theme-code>2C088</theme-code> <f-term mxw-id="PCL1125233156" load-source="docdb">2C088BA02</f-term> <f-term mxw-id="PCL1125234246" load-source="docdb">2C088AA42</f-term> <f-term mxw-id="PCL1125236700" load-source="docdb">2C088AA11</f-term> <f-term mxw-id="PCL1125252568" load-source="docdb">2C088EB28</f-term> <f-term mxw-id="PCL1125261614" load-source="docdb">2C088AA36</f-term> <f-term mxw-id="PCL1125276981" load-source="docdb">2C088AA06</f-term> </f-terms> </f-term-info> |
Element | INID | Description |
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theme code | 51 | 5-character alphanumeric code which represents a technical field. |
f-term | 51 | See table below. More information about F-terms can be found at https://www.jpo.go.jp/torikumi_e/searchportal_e/classification.htm. |
Characters | Value | Description |
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1-2 | 2C | Group of Theme |
1-5 | 2C088 | Theme |
6-7 | AA | Viewpoint |
6-9 | AA02 | F-term |
10 | A | Additional Code (optional) |
technical-data/classifications-cpc
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<classifications-cpc> <classification-cpc mxw-id="PCL-1437171692" load-source="docdb" scheme="CPC">C12Q 1/6869 20130101 FI20190308BHEP</classification-cpc> <classification-cpc mxw-id="PCL-1437187236" load-source="docdb" scheme="CPC">G16B 30/20 20190201 LI20190308BHEP</classification-cpc> <classification-cpc mxw-id="PCL-1437187457" load-source="docdb" scheme="CPC">C12Q 1/6827 20130101 LI20190308BHEP</classification-cpc> <combination-sets> <combination-set group="1" load-source="docdb"> <classification-cpc rank="1" mxw-id="PCL-1437182516" load-source="docdb" scheme="CPC">C12Q 1/6869 20130101 LI20190308BHEP</classification-cpc> <classification-cpc rank="2" mxw-id="PCL-1437183463" load-source="docdb" scheme="CPC">C12Q2535/122 20130101 LA20190308BHEP</classification-cpc> <classification-cpc rank="3" mxw-id="PCL-1437166528" load-source="docdb" scheme="CPC">C12Q2537/165 20130101 LA20190308BHEP</classification-cpc> </combination-set> <combination-set group="2" load-source="docdb"> <classification-cpc rank="1" mxw-id="PCL-1437169247" load-source="docdb" scheme="CPC">C12Q 1/6827 20130101 LI20190308BHEP</classification-cpc> <classification-cpc rank="2" mxw-id="PCL1987075595PCL-1437199121" load-source="docdb" scheme="CPC">C12N2760>C12Q2535/16121122 20130101 LA20130101BHEP<LA20190308BHEP</classification-cpc> <classification-cpc rank="3" mxw-id="PCL1987079213PCL-1437200085" load-source="docdb" scheme="CPC">C12N2760>C12Q2537/16161165 20130101 LA20130101BHEP<LA20190308BHEP</classification-cpc> </combination-set> </combination-sets> </classifications-cpc> |
Attribute | Description |
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scheme | Values include: |
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rank | Sequential number used to identify the rank of a symbol within a combination set |
Element | INID | Description |
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classification-cpc | 52 | Cooperative Patent Classification. Format is according to WIPO ST. 8. For more information on CPC, see Cooperative Patent Classification in IFI |
CLAIMS Direct. The full list of CPC codes can be found on the CPC website or the USPTO website. When available, F and L symbols may indicate first and later classifications as in the following example:
The different elements of CPC codes are described in the following table:
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combination-sets | Group of CPC symbols that have one base class and one or more subsequent ranked symbols that are linked together to convey special classification information. C-Sets classification is a special classification technique, providing a mechanism for searching combined features that are otherwise not easy to find by single symbols, resulting in more precise and efficient retrieval of technical information from CPC. A C-Set brings together symbols from different groups within the same subclass or from different subclasses, in a certain order.
Example of C-sets presentation in patent documents and in the CPC database:
Source: Guide to CPC (EPO and USPTO) See https://www.cooperativepatentclassification.org/Training for more information. |
technical-data/classifications-cpc/combination-sets/combination-set
Attribute | Description |
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group | Number used to identify a group of symbols, when allocating a combination set of symbols to a patent document |
technical-data/classification-ecla
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<classification-ecla> <classification-symbol scheme="ICO" mxw-id="PCL684638563">L65D519:00Y1B4</classification-symbol> <classification-symbol scheme="ICO" mxw-id="PCL684640847">L65D519:00Y3A1B</classification-symbol> <classification-symbol scheme="EC" mxw-id="PCL684643157">B65D 21/02E5</classification-symbol> <classification-symbol scheme="EC" mxw-id="PCL935789780">A63B 69/36P2</classification-symbol> </classification-ecla> |
Attribute | Description |
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scheme | Indicates when the ECLA code is based on the European Classification System (EC) or is an internal EPO classification (ICO=In Computer Only). Other scheme values are IDT (Indeling der Techniek), an old Dutch Patent Classification scheme, and ECNO, which indicates ECLA symbols that have been allocated to a document by a patent examiner who does not work for the EPO. |
Element | Description |
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classification-symbol | ECLA codes assigned by EPO examiners |
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For information about the SOLR Solr search fields associated with this container, see Classifications. |
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