Does Linux belong to Microsoft?

In a recent Q&A session, Microsoft CEO Steve Ballmer declared his belief that the Linux operating system infringes on Microsoft’s intellectual property.

I won’t post any links, the tech news is buzzing about it.

Is not paying SCO to sue IBM and buying out Novell not enough?

(these aren’t my comments, I’ve been just reading news, but i am concerned.)

Any comments folks?

EDIT: an obvious typo