and tigo serach can't find web site.

Scientigo, Tigo Search - Scien  Tigo

Reading things I wonder is it technology that was patent that uses XML or XML was patent.

Scientigo say they patent XML

In addition, Scientigoâ„¢ owns patents that address a set of key technical protocols, referred to as XML.(Extensible Mark-up Language), a popular standard used to support the exchange of data over the Internet.

New's articles say "patented XML technology"

Scientigo's tigo|search blends artificial intelligence, machine learning, rules-based systems, and patented XML technology to deliver a fast, flexible platform that will enable users of FatWire's Content .........

Either way if someone words it correctly could get a patent on the air we breath and then start to charge money for it. Ohh wait is there not an oxygen bar somerwhere.