I found an offer for a patent pool, what does that mean?
Where manufacturers don't themselves hold any patents relevant to the product they manufacture, and these patents are held by several patent holders, who may license the patents in a group.
That is the patents are put in a "patent pool" by the patent holders, and they are licensed in a package directly by the owners or by an entity established for that purpose.
Such arrangements are particularly relevant in the context of patent thickets, where a single product may involve a maze of patents making its manufacture impossible without dealing with an array of patent holders.