Which physicist ran electricity through a carbon filament encased in a glass bulb from which the air had been evacuated, and produced an incandescent light that lasted for several hours? But honours for the first practical electric light went to Edison although it was created before him.

Joseph Swan:
"In 1878 the English physicist Joseph Swan ran electricity through a carbon filament encased in a glass bulb from which the air had been evacuated, and produced an incandescent light that lasted for several hours. " Link to Reference Maunde

Yes, Swan and Edison teamed up for a while, here's more...