Some news during that time said about this, this may be the original source:

http://www.fosspatents.com/2012/11/apple-htc-license-agreeme...

> In the event of a Change of Control of a party, this Agreement shall automatically terminate unless otherwise agreed in writing by the Parties, effective immediately prior to such Change of Control.

Sure, HTC had a couple of seminal 4G patents that forced Apple to cross-license back in 2012, but I'm not sure if such legal protection is of any use for Google today. Most of Apple's utility and design patents asserted against HTC and cross-licensed were found to be invalid or not infringed during Samsung trial. Further, unlike Samsung, Google is less likely to suffer from the jury bias that Samsung did, even if they end up in court for patent infringement. There is really nothing to fear. In any case, I don't think Google is doing this to acquire patents.

But not always. If someone were to acquire AMD wouldn’t they lose access to the Intel patents because of the way that deal was structured?

But wouldn't the potential AMD buyer have option to void deal for amd64 then? Serious question.

Depends on what the contract says. I'm guessing no because the Intel lawyers are not incompetent.

But neither are the AMD lawyers.

Except they got the license back in the distant past before anyone had any idea it would be so valuable.