PATENTS - Nautilus v. Biosig

Today, more than eight and a half million patents have issued and more than two million of
them are unexpired and remain in effect. About five thousand additional patents issue every week.

That's from Amazon, Google, Newegg, et al's amicus brief in the Nautilus case, which seeks to change the Federal Circuit's precedent that a patent is valid and not "indefinite" under section 112 as long as it is not "insoluble." The U.S. Supreme Court will hear argument on April 28th, 2013, on whether a patent claim's scope need not be particular, and that a patent is still "definite" even though subject to multiple "reasonable" interpretations. 

Scotusblog's coverage is here.