Who owns the patent for HTML, if there is one?

I know it is W3C's policy to ensure that any patented technology use in
any of their standards is promised to be licensed with no fees. What I
can't find out is if there is a patent on the HTML standard itself. If
there is one, then who owns it? Does the W3C own the patent? I imaging
they own the patent for the latest versions but do they own the original
version? Was that ever patented?

Don't worry, I'm just curious. I'm not going to try to buy "The
Internet."

As a corollary, if there are patents, who is listed as the inventors?
.

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