<?xml version="1.0" encoding="UTF-8"?>

<?xml-stylesheet type="text/xsl" href="/static/oaitohtml.xsl"?>

<!--
<?xml-stylesheet type="text/xsl" href="/oaitohtml.xsl"?>
-->

<OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <responseDate>2026-10-13T14:25:28Z</responseDate>
    <request verb="GetRecord" metadataPrefix="oai_dc" identifier="10.57760/sciencedb.44188" >https://www.scidb.cn/oai</request>
<GetRecord>
    <record>
    <header >
    <identifier>10.57760/sciencedb.44188</identifier>
    <datestamp>2026-09-20T09:57:34Z</datestamp>
</header>
    <metadata>
        
<oai_dc:dc xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:date>2026-09-20</dc:date>
  <dc:title>Patent data in proton exchange membrane field</dc:title>
  <dc:identifier>doi:10.57760/sciencedb.44188</dc:identifier>
  <dc:language>en</dc:language>
  <dc:description>Patent data in the field of proton exchange membrane were obtained from IncoPat database, and the time span was from 1993 to 2025. After searching with reference to the search expression of Zhai Dongsheng and others, 969 valid invention patents were finally obtained after the same family weight removal, cleaning and invalid data elimination.[1]Zhai Dongsheng,Kan Huimin,Li Mengyang et al. Research on Mining Patent Layout Intention Based on Graph Embedding from the Perspective of Industrial Chain[J].Journal of the China Society for Scientific and Technical Information,2022,41(05):437-450.</dc:description>
  <dc:subject>patent; Proton exchange membrane; triz</dc:subject>
  <dc:creator>Qu Qianwei</dc:creator>
  <dc:rights>RESTRICTED</dc:rights>
  <dc:type>dataset</dc:type>
  <dc:publisher>Science Data Bank</dc:publisher>
</oai_dc:dc>

    </metadata>
</record>
</GetRecord>
</OAI-PMH>