Regular
patent passion on Habré prompted me to still read the patent indicated in the post to the end, and not just its name and summary.
So, consider the patent a little more.
First of all, you can see the frequent use of the abbreviation WPML, the text of the patent explains what it is:
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The terms "word-processor markup language" or "WPML" refers to the word-processor application.“The term“ text editor markup language ”or“ WPML ”refers to elements of a markup language associated with a text editor program and a markup scheme specific to this text editor.It's all like creating your own XML-based markup language to save text formatting elements. If you don’t be lazy and upload a plug-in that allows you to see pictures to a patent, then you can see that it’s really only a matter of the sublanguage of text formatting elements that are connected to XML in the form of a namespace “w”. Here is an example of a file in this language (basic markup elements: information about the document, text of the document, two paragraphs of text).

Thus, this language is no different from many other markup sublanguages based on XML (and the patent does not affect them in any way). Here is a list of alternative markup languages from Wikipedia:
en.wikipedia.org/wiki/List_of_document_markup_languagesMoreover, Mycrhoste has other markup languages that allow you to save formatting elements:
Not only Microsoft has patents on markup languages, for example,
ESRI extensively uses its own
ArcML markup
language to store geo-information data and to store data of its applications, without at the same time limiting the use of other XML formats for similar purposes, such as GML.