The details are in Eric's post here:
https://terathon.com/blog/decade-slug.html
The timeline basically checks out, maybe it simply took the patent office over a year to process the patent application?
No, application filed 2018-02-01, after the publication. Though yes it took more than a year to grant it
No, application filed 2018-02-01, after the publication. Though yes it took more than a year to grant it