Who owns infinity?

The DFINITY Foundation is a not-for-profit organization based in Zurich, Switzerland to develop technology to blockchain technology. DFINITY allegedly started using its infinity logo on its website in March 2017, and it registered its logo on October 9, 2018 with the USPTO (see TSDR).

DFINITY recently sued Meta Platforms, Inc., the parent of Facebook, for using an infinity symbol as its logo (see N.D. California case, 3:22-cv-02632-AGT).

I look forward to learning who owns infinity.