Oak Industries, Inc. was an American electronics company that manufactured a variety of products throughout seven decades in the 20th century. In existence from 1932 to 2000, the company's business lines primarily centered around electronic components and materials, though the company made a high-profile and ultimately failed extension into communications media in the late 1970s and early 1980s. The firm was founded in Crystal Lake, Illinois, moving its headquarters to Rancho Bernardo, California, in the late 1970s and again to Waltham, Massachusetts, in 1990. Corning Inc. purchased Oak in January 2000 primarily for its Lasertron division, a manufacturer of lasers.

Corning Incorporated is an American multinational technology company that specializes in specialty glass, ceramics, and related materials and technologies including advanced optics, primarily for industrial and scientific applications. The company was named Corning Glass Works until 1989. Corning divested its consumer product lines in 1998 by selling the Corning Consumer Products Company subsidiary to Borden.