Who Invented the Light Bulb? Humphrey Davy Frederick DeMoleyns Who Invented the Lightbulb? other people had applied for patents for lights primary contribution Lightbulb Invention http://www.unmuseum.org... Who Invented the Lightbulb? Who Invented the Lightbulb? Who Invented the Lightbulb? Who Invented the Lightbulb? URL given credit for inventing them primary contribution Who Invented the Lightbulb? Lightbulb Invention Who Invented the Lightbulb? Humphrey Davy http://www.unmuseum.org/lightbulb.htm primary contribution create one that was practical for everyday use http://www.unmuseum.org/lightbulb.htm create one that was practical for everyday use http://www.unmuseum.org/lig... primary contribution