Google has not existed long enough to have a large patent portfolio.
This is why companies like google keep a big patent portfolio: for retaliation.
MS is protecting its patent portfolio as any company would do.
Over time, the government's 50 percent patent portfolio will throw off a lot of cash.
Someone who has a huge patent portfolio, but doesn't make anything, so there's no risk.
The most likely reason for interest from these companies is the patent portfolio rather than the software itself.
They all do it, and have much bigger patent portfolios.
The only thing left is the patent portfolio, and it's not yet clear that's being sold.
Any technology company that has been around for a decade or two is going to have a large patent portfolio.
Now, most of their companies have large patent portfolios, and many bring in annual revenue.