Neat! Thank you a ton for linking me to this page! I've never seen it before. According to this, then, Apache v2.0, GPL v3, and MPL 2.0 are the only (well known) licenses with explicit patent grants.

It also mentions that there is an 'implicit' patent grant provided by the revised BSD license[1] but that it has never been tested in court (which I presume means it is not advised).

I guess Apache 2.0 (or if you're a copyleft kind of guy, GPL3) is the way to go!

[1] http://en.swpat.org/wiki/Patent_clauses_in_software_licences...