Knight Ridder/Tribune Business News
Nov. 30 -- A Costa Rican businessman who says he invented a device to fertilize banana plantations without harming workers is locked in a patent war with one of the largest sellers of agricultural products in the United States.
Edgar Hildalgo Vargas says his fight with American Cyanamid Co. of Parsippany, N.J. has taken him from the courts in Costa Rica to the patent office in Washington, D.C. He's come to Miami lawyer Jay Sanchelima for help.
"We feel they are infringing on my client's patent and committing unfair competition in violation of our rights," said Sanchelima, who will assist Vargas' Costa Rica counsel in his $150 ...