Patent model
On July 31, 1790 inventor Samuel Hopkins of Pittsford, Vermont became the first person to be issued a patent in the United States. His patented invention was an improvement in the "making of Pot Ash by a new apparatus & process." These earliest patent law required that a working model of each invention be produced in miniature.
Patent war
Patent wars are not a new phenomenon. In the Wright brothers patent war, the Wright brothers, attributed with the invention of the airplane, sought to prevent competitors from manufacturing airplanes through litigation, stifling the development of the American airline industry. Alexander Graham Bell, credited with inventing the telephone, was dragged into a patent war against his rivals, which involved, in just 11 years, 600 lawsuits. One notable case was Bell's lawsuit against Western Union. Western Union was backed by Elisha Gray, also credited with inventing the telephone.