This patent was granted in April 2013 (see http://pdfpiw.uspto.gov/.piw?PageNum=0&docid=08434019&IDKey=...), and does indeed pretty precisely describe Moom's "drag across a grid" window repositioning method. Which... first appeared in April 2011. See this old blog post, describing the brand new grid-selection feature of Moom 1.2: https://manytricks.com/blog/?p=1297

So that should be interesting.

This patent may also cover the window arrangement widget in Adobe's products, which seems to date back to at least 2011 (google for 'adobe application frame'): http://egypt.urnash.com/media/blogs.dir/1/files/2017/05/Scre...

...but somehow I doubt they'll be suing Adobe until they've successfully gone after all the other folks who independently invented something similar to their patent.