With more than a thousand patents to his name ... An early sketch of a light bulb made by Thomas Edison on February 13, 1880. The year before, the inventor had demonstrated his long-lasting ...

Illustration by Meilan Solly / Background via Library of Congress In the autumn of 1878, Thomas Alva Edison had a problem. He hadn’t invented the light bulb—yet. Or, to put it more precisely ...

Thomas Alva Edison was born in 1847 in MIlan ... In 1883, Edison lost his light bulb patent when the U.S. Patent Office ruled his work had been based on that of another inventor, William Sawyer.

Though Thomas Edison ... to the DOE. Edison and his team of researchers tested more than 3,000 designs for bulbs between 1878 and 1880. In Nov. 1879, Edison filed a patent for an electric lamp ...

This made Edison's light bulb not only durable but also economical, and this was a crucial factor for mass usage. Thomas ...

Like Thomas Edison’s patent for the light bulb, we understand why one could argue that the Vanguard patent and philosophy shined a light through savings and investing for millions of people.

What are some fun facts about Thomas Edison? Discover some interesting facts about the American inventor and businessman, and ...

Everyone knew a better light bulb would be a winner ... Ultimately, they failed to commercialize it, but they sold their patent to Thomas Edison. Edison got serious about electric lighting ...

With a few exceptions, the bulbs – patented by Thomas Edison in 1880 ... what's considered a "warmer" color. 1880: Edison patents the electric incandescent light bulb. 1976: First CFL is invented.