"The Supreme Court, as expected, dealt the final blow to Pittsburgh inventor Rand Warsaw's dream of patenting a method for hedging energy costs against changes in the weather. In doing so, however, the court didn't upset the foundations of the multibillion-dollar world of "business method patents," which are based less on a particular machine than a process for achieving some practical end.
It was an anticlimactic end to a case whose decision was so long delayed that some speculated the justices were deadlocked over how far to rein in what some see as an out-of-control patent process. Instead, the court rejected a narrow test that would require patents to involve a machine or transformation of matter and merely said patents can't cover an abstract idea.
"It looks like what people actually thought it would be, before it took forever," said John Dragseth of Fish & Richardson in Minneapolis. "Not much has changed from what thoughtful people thought the law should be.""
Source: http://blogs.forbes.com/docket/2010/06/28/the-supreme-court-keeps-business-method-patents-alive/


