=== strings ===
* '''PATENT_TYPE'''
** XML 4.3, 4.4, 4.5
*** <code>//us-bibliographic-data-grant/application-reference/@appl-type</code>
* '''TITLE'''
** XML 4.3, 4.4, 4.5
*** <code>//invention-title</code>
* '''PCT_DOCUMENT_NUMBER'''
** XML 4.3, 4.4, 4.5
*** <code>//us-bibliographic-data-grant/pct-or-regional-filing-data/document-id/doc-number</code>
* '''PATENT_COUNTRY'''
** XML 4.3, 4.4, 4.5
*** <code>//us-bibliographic-data-grant/publication-reference/document-id/country</code>
* '''PATENT_NUMBER'''
** XML 4.3, 4.4, 4.5
*** <code>//us-bibliographic-data-grant/publication-reference/document-id/doc-number</code>
* '''PATENT_KIND'''
** XML 4.3, 4.4, 4.5
*** <code>//us-bibliographic-data-grant/publication-reference/document-id/doc-number/kind</code>
* '''PATENT_GRANT_DATE'''
** XML 4.3, 4.4, 4.5
*** <code>//us-bibliographic-data-grant/publication-reference/document-id/date</code>
* '''APPLICATION_NUMBER'''
** XML 4.3, 4.4, 4.5
*** <code>//us-bibliographic-data-grant/application-reference/document-id/doc-number</code>
* '''APPLICATION_FILING_DATE'''
** XML 4.3, 4.4, 4.5
*** <code>//us-bibliographic-data-grant/application-reference/document-id/date</code>