What did Walter Brattain invent?
John Bardeen, Walter Brattain and William Shockley worked together at Bell Labs in the 1940s for a relatively brief period of time. But their collaboration resulted in one of the most important inventions of the century: the transistor. This device would transform the electronics world and make a major impact on the architecture of computers, helping to put them into the mainstream just a few years later. Taken from Inventor of the Week
In actuality, Walter Reed did not invent anything. He was an Army doctor who with a team did research on yellow fever. He is credited with the theory or discovery that yellow fever transmission was caused by a specific type of mosquito bite and not through direct contact. Walter Reed was born in 1851 and died in 1902.
Walter did not invent bubble gum, he just innovated it. Before he created his "Dubble Bubble" gum brand, gum was horrible; the gum was too sticky and it broke too easily. Walter created a gum that was a lot more resistant and lasted a lot longer, this is the first gum that became popular, which is why Walter is regarded to be the inventor of bubble gum.