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Henry Woodward

On July 24, 1874, five years before Thomas Edison's U.S. patent, two Canadians, Henry Woodward, a medical student from Toronto, Ontario and his friend Mathew Evans, a hotelkeeper, patented the first incandescent lamp with an electric light bulb. They understood that carbon was a conductor and made light inside a bulb by sending electricity through a filament made of carbon.

They did not have enough money to develop their invention for people to use and sold a share of their patent to Thomas Edison who was also struggling with his own light bulb experiment.

Modern light bulbs still work the same way as the ones invented by Woodward and Evans.Image is a copy from the actual patent application.

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Henry Woodward Guyanese_likkle_baba@hotmail.c - December 1st, 2004
Hi there, My names Melissa Shaw and I am doing a business project about the first patened light bulb. By the information that I am recieving over the internet, I am not sure who has invent the first patented light bulb. Edison? or Henery Woodward. I would appretiate you taking your time to read this, Thank you for your time and consideration. Melissa Shaw read more » messages 1

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Henry Woodward".