Elisha Gray Quotes
As to Bell's talking telegraph, it only creates interest in scientific circles... its commercial values will be limited.
Gray, Elisha. Letter to A. L. Hayes. 1876. Quoted in Coe, Lewis. The Telephone and Its Several Inventors: A History. McFarland, 1995, p. 32.
One of the limits of the patent systems for an individual or small company is the huge effort it takes to document an invention and enforce patent rights after getting a patent.
Elisha Gray was an American electrical engineer who co-founded the Western Electric Manufacturing Company. Gray is best known for his development of a telephone prototype in 1876 in Highland Park, Illinois. Some recent authors have argued that Gray should be considered the true inventor of the telephone because Alexander Graham Bell allegedly stole the idea of the liquid transmitter from him. Although Gray had been using liquid transmitters in his telephone experiments for more than two years previously, Bell's telephone patent was upheld in numerous court decisions.