From an article
over at the Economist
Thomas Jefferson, should draw “a line between the things which are
worth to the public the embarrassment of an exclusive patent, and those
which are not.” .... But another,
less-acceptable reason for the flood is that patent offices have been
too lax in granting patents, encouraging many firms to rush to patent
as many, often dubious, ideas as possible in an effort to erect legal
obstacles to competitors.
Slowly the problems caused by the broken patent system are getting attention ...
Rest of the article at the Economist.