The "INID Codes" or "INID Numbers" found on the front page of patent documents are based on the acronym INID or "Internationally agreed Numbers for the Identification of bibliographic Data", that was initially established in Madrid [http://www.wipo.int/scit/en/standards/pdf/03-09-01.pdf].

In an effort to make all of the information of patents as well as all forms of intellectual property (i.e., patents, industrial designs, utility models, trademarks and copyrights), WIPO has worked to make all parts of the document accessible by XML, extensible markup language [wikipedia (20071219): XML], [http://www.w3.org/TR/2004/REC-xml11-20040204/], by establishing a Document Type Definition (DTD) for all types of documents. As a result of various WIPO committees and study groups, several WIPO Standards and Recommendations have been issued.

The XML DTD standards established (and being continuously reviewed and subject to further modification) are generally described in WIPO PCT Annex F, Appendix I dated October 18, 2005 (also referred to as PCT/AI/DTD/3) [http://www.wipo.int/pct/en/texts/pdf/ai_dtd_3.pdf], [http://www.wipo.int/export/sites/www/scit/en/standards/st36-xml-dtd/epct-element-encyclopedia-20050220.pdf].

The WIPO standard specifically directed to bibliographic data in Patent documents is ST.9 entitled "Recommendations Concerning Bibliographic Data on and Relating to Patents and SPCS" [http://www.wipo.int/scit/en/standards/pdf/03-09-01.pdf]. This document describes various information-containing items found on the front pages of all patent documents issued by countries and patenting bodies that are members of WIPO. Examples of these items include a bar code, patent number, inventors, applicants, various important document dates, abstract, and classifications.

Please visit siberkhem.blogspot.com for further information (see 20071207).