[PageVisibility] Page Visibility 2 - Patent disclosure update?

The last update to this document was Novermber 27th, 2013. After almost a
year of quiet, I'm wondering if there has been any movement on gathering
the patent disclosure requested in the document, or if this was ever
revisted. The last line of the current document linked here (
https://dvcs.w3.org/hg/webperf/raw-file/tip/specs/PageVisibility2/Overview.html
)
reads:

"This document was produced by a group operating under the 5 February 2004
W3C Patent Policy. W3C maintains a public list of any patent disclosures
made in connection with the deliverables of the group; that page also
includes instructions for disclosing a patent. An individual who has actual
knowledge of a patent which the individual believes contains Essential
Claim(s) must disclose the information in accordance with section 6 of the
W3C Patent Policy."

This technology is fundamental to improving web application performance, as
has been the case with similar technologies (requestAnimationFrame,
PageVisibility 1, timer throttling, connection throttling, defer/async,
lazy loading, etc). I would like to see it moved forward if it's currently
collecting dust.

Thanks Sincerely,
Jeffrey Gilbert