Engineered Glass Products, LLC, (or EGP) in Chicago, Illinois, is the parent company of Marsco Glass Products, LLC, and Thermique Technologies, LLC.
Marsco Manufacturing (later Engineered Glass Products) was founded in 1947 as a manufacturer of specialized glass products, most importantly customized dials and gauges. With the arrival of television, Marsco became one of the first manufacturers to produce protective gray glass shields for television tubes.
In the 1970s, Marsco engineers introduced a heat-resistant coating for glass that greatly expanded the uses for glass in kitchen appliances like self-cleaning ovens. Marsco then formed partnerships with well-known industry names like General Electric to become the dominant supplier of heat-resistant coated glass in North America.
In 1995, general manager Mike Hobbs engineered a management buyout of the company and began to modernize the company’s corporate structure.