Who invented the filaments that lasted longer?
If you you mean Incandescent lamp filaments then Joseph Swan and
Thomas Edison created the first lamps with carbon
filaments.Edison's workers tried hundreds of fibres before
carbonising a sliver of bamboo bark. These were later replaced with
a coiled coil of Tungsten in the early 20th century. It was the
invention of a process by William Coolidge that could coax this
extremely hard and non ductile metal into a fine filament that
revolutionised the durability of ordinary lamp bulb