Thomas Edison of the Edison patent to charge a more reasonable rate for the use of the Edison patent rights and lowering the price of the electric lamp. On October 8, 1883, the US patent office ruled that Edison's patent was based on the work of William E. Sawyer and was, therefore, invalid. Litigation continued for nearly six years, until October 6, 1889, when a judge ruled that Edison's electric light improvement claim for "a filament of carbon of high resistance" was valid. To avoid a possible court battle with Joseph Swan, whose British patent had been awarded a year before Edison's,
Edison Electric Institute is a 501(c)(3) charitable organization. The foundation's main activities are research, holding conferences, giving grants, and doing outreach to outside parties and organizations. The foundation's three main goals are to educate the public about how electric power is produced, delivered, and used; help make the environment clean and safe; and improve the quality of life for all people. The governing structure of the foundation is a board of directors made up of CEOs from the electric industry. Edison Electric Institute The Edison Electric Institute is the association that represents all U.S. investor-owned electric companies. Its members provide electricity for 220