8 Inventions You Thought Were Patent-Free But Could Get You Sued If You Use … – Mother Jones


U.S. News & World Report

8 Inventions You Thought Were Patent-Free But Could Get You Sued If You Use
Mother Jones
Innovation is the foundation of America, and since 1790, entrepreneurs have been able to claim patents on their inventions so that copycats can't profit off their work. But some companies have found a controversial use of the American patent system, 
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