Patents as opportunities to bargain

See the Boston Globe post You patented it, you own it? Not so fast including the text:

Patents become no more than a starting point for negotiation. A patent is a document that gives its holder an opportunity to bargain, a seat at the table—not an absolute right to everything that springs from an idea.

A patent right is a right to exclude others, not a right to make something. A patent gives the owner a right to negotiate with others.