| Field | Description | Field Type | XML Source Path | Examples | Multivalued | Indexed | Stored | Required |
|---|---|---|---|---|---|---|---|---|
| patent-document/bibliographic-data/publication-reference | ||||||||
| pn | publication identifier | alexandria_token | ./@ucid | AP-584-A, AP584A, AP584 | x | x | x | |
| xxpnctry | publication country | alexandria_string | ./document-id/country | US | x | x | ||
| xxpnnum | publication number | alexandria_string | ./document-id/doc-number | 5551212 | x | x | ||
| xxpnkind | publication kind | alexandria_string | ./document-id/kind | A | x | x | ||
| xxpnlang | publication language, 2-character code based on ISO 639-2 | alexandria_string | ./document-id/lang | EN | x | x (default=xx) | ||
| pd | publication date | tint | ./document-id/date | 20010101 Note: If no ./date is present and a | x | x | x | |
| xxpd_d | publication date represented internally as a date type | tdate | ./document-id/date | 2001-01-01T00:00:00.001Z Note: This field allows efficient range faceting and all SOLR date math, e.g., month faceting. | x | x | ||
pdyear | publication year | tint | ./document-id/date | 2001 | x | x | ||
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