[cptskippy]

That's how the industry works. You gather and hoard as many frivolous patents as you can in a cold war arms race. If a new company threatens your business, you search your portfolio for a patent they violated and sue them.

Companies who grow to a certain size look to be acquired by larger firms with bigger war chests.

Sometimes companies recognize patents are stifling progress and engage in cross licensing or pooling of patents. Sometimes they do it to gang up on a new rival.