OOXML clean of patent violations?

I was browsing the web while I found that one company named Scientigo was claiming 2 patents on XML:

• Groklaw: Scientigo Claims Patents on XML
• ZDNet: Small company makes big claims on XML patents
• TechDirt: Company Claims To Have Patented XML; Plans To Sue Everyone
• eWeek: Scientigo Makes Broad XML Patent Claims
• Wikipedia: Scientigo
• Cnet: Small company makes big claims on XML patents

The Cnet article is mentionning that the company intends to 'monetise' its patents:

Charlotte, N.C.-based Scientigo owns two patents (No. 5,842,213 and No. 6,393,426) covering the transfer of "data in neutral forms." These patents, one of which was applied for in 1997, are infringed upon by the data-formatting standard XML, Scientigo executives assert.

Scientigo intends to "monetize" this intellectual property, Scientigo CEO Doyal Bryant said this week.

I wonder if the OOXML specification with its 6000 pages is clean from patent violations.