Who invented the first light bulb and when?
1879 — Thomas Edison developed his carbon-filament bulb, enclosed in a superior vacuum to extend the life of the filament. Swan and Edison both applied for patents in 1880, prompting litigation that dragged on until the two formed a joint company in 1883.
Did Benjamin Franklin invent the light bulb?
While Benjamin Franklin greatly expanded out understanding of electricity, he did not, in fact, invent the light bulb. Thomas Edison is usually given…
Who invented the light bulb Edison or Swan?
It’s painful to cast aspersions on the reputation of one of America’s heroes, but Edison, who patented his bulb in 1879, merely improved on a design that British inventor Joseph Swan had patented 10 years earlier.