How invented the mylar balloon?

The Mylar balloon was invented by a team at the American company, "G. L. D. Corporation," in the late 1970s. Mylar, a type of polyester film developed by DuPont in the 1950s, was used to create these balloons, which are known for their durability and ability to hold helium longer than traditional latex balloons. The first Mylar balloons were introduced to the market in 1978 and quickly gained popularity for their vibrant colors and designs.