Following the success of the Super Soaker, Johnson founded Johnson Research & Development Co., Inc., with the goal of developing and commercializing his other inventions and innovations. The company is located in Atlanta, Georgia.

Johnson has licensed several other inventions to Hasbro, including the Nerf Dart Tag system. These ventures further demonstrate Johnson's inventive capabilities beyond the realm of water guns.

Currently, Johnson Research & Development is focused on developing advanced energy technologies, including a high-efficiency ceramic battery designed for renewable energy storage and electric vehicles. This represents a significant shift towards clean energy solutions and highlights Johnson's commitment to addressing global challenges.

Another significant project is the development of a thermodynamic energy conversion system, which aims to convert heat into electricity with high efficiency. This technology has the potential to revolutionize energy production and reduce reliance on fossil fuels.