In 2005, IBM noted in a court filing that it had been issued more than 300 business-method patents, despite the fact that it questioned the legal basis for granting them.

2010年考研真题（英语一）阅读理解 Section Ⅱ

Now the nation's top patent court appears completely ready to scale back on business-method patents, which have been controversial ever since they were first authorized I0 years ago.

2010年考研真题（英语一）阅读理解 Section Ⅱ

That ruling produced an explosion in business-method patent filings, initially by emerging Internet companies trying to stake out exclusive rights to specific types of online transactions.

2010年考研真题（英语一）阅读理解 Section Ⅱ