The keywords container includes high-level summary words or phrases found in patent documents. This container is available for CN to Premium Plus subscribers.

Chinese Language Example

<keywords mxw-id="PKEY1" load-source="patent-office" lang="ZH" format="original">
  <keyword-set technical-field="invention-title" subjects-number="2">
    <keyword sequence="1" pfq="1" dvalue="1">方法和设备</keyword>
    <keyword sequence="2" pfq="1" dvalue="0.97">识别部件</keyword>
  </keyword-set>
  <keyword-set technical-field="abstract" subjects-number="18">
    <keyword sequence="1" pfq="4" dvalue="1">马达</keyword>
    <keyword sequence="2" pfq="2" dvalue="0.70">比较装置</keyword>
  </keyword-set>
</keywords>

English Language Example

<keywords mxw-id="PKEY2" load-source="patent-office" 7lang="EN" format="original-translated">
  <keyword-set technical-field="invention-title" subjects-number="2">
    <keyword sequence="1" pfq="1" dvalue="1">Method and equipment</keyword>
    <keyword sequence="2" pfq="1" dvalue="0.97">Identification unit</keyword>
  </keyword-set>
  <keyword-set technical-field="abstract" subjects-number="18">
    <keyword sequence="1" pfq="4" dvalue="1">Motor</keyword>
    <keyword sequence="2" pfq="2" dvalue="0.70">The comparison means</keyword>
  </keyword-set>
</keywords>

keywords/keyword-set

AttributeDescription
technical-fieldSection of the patent document in which the keyword occurs
subjects-numberNumber of distinct keywords which occur within a section

keywords/keyword-set/keyword

AttributeDescription
sequenceSequence number
pfqNumber of occurrences of a keyword within a section (frequency)
dvalueRelevance ranking weight of a keyword, ranging from 0 to 1, with 1 indicating the greatest relevance
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