In 1913, Louis Aronson applied for a patent for a "Liter" (lighter), which was approved. In 1926 he released a new "automatic operation" "Banjo" lighter, which offered to both ignite and extinguish in a single push. It was a great success, demand shortly exceeding supply, spurring Aronson to patent it and design other products around the invention, which were marketed under the "Ronson" brand name. Under his leadership, the Art Metal Works began designing prototypes, and patented several generations of "Igniting-Apparatus" until finally arriving at the Banjo Lighter. Ronson received an exclusive patent, in 1926, for a new automatic style of lighter that worked with one hand, and in 1927 Ronson began marketing it as the Ronson De-Light Lighter with the slogan "A flip - and it's lit! Release - and it's out!"