What corporate name did Ray Kroc use when he incorporated the McDonald's franchise business in 1955?

Ray Kroc incorporated the McDonald's franchise business as McDonald's System, Inc. in 1955.

Kroc had become involved with the McDonald brothers after selling them Multimixer machines and seeing the potential of their efficient restaurant operation. He negotiated a franchise arrangement and opened a McDonald's restaurant in Des Plaines, Illinois, in 1955.

The corporate name reflected the operating system Kroc wanted to replicate: consistent food preparation, service procedures, restaurant design, and branding. This emphasis on standardization helped turn a successful California restaurant format into a national chain.

The company later became known as McDonald's Corporation. The corporate-name change is distinct from the restaurant brand itself, which continued to use the McDonald's name and the Golden Arches as its public identity.