Patents: Monopoly or Property Right a Testable Hypothesis http://hallingblog.com/patents-monopoly-...
If patents are a monopoly, as some suggest, then it should lead to certain outcomes. A close examination shows that none of the supposed monopoly effects result from granting patents.

Monopoly/Rent Seeking vs. Property Rights/Intellectual Property http://hallingblog.com/monopolyrent-seek....
This post explains the characteristics of a monopoly and a property right and poses three questions to show the difference. Patents fit all the characteristics of a property right and none of a monopoly. Note that professional license, such as a law license has some of the characteristics of a monopoly.

More on the Myth that Patents are Monopolies http://hallingblog.com/more-on-the-myth-....
This post contains a number of quotes from philosophers explaining that patents are not monopolies.

Property Rights, Possession and Objects http://hallingblog.com/property-rights-p...
This post explains the difference in the concepts of property rights, possession, and objects. Most economists and patent detractors confuse these concepts. The origin, definition, and legal basis of property right are explained.

The Myth That Patents are a Monopoly http://hallingblog.com/the-myth-that-pat...
This post compares the definition of a monopoly to the rights obtained with a patent. It shows that the rights obtained with a patent do not confer a monopoly.