19. Guardian Industries Corp. #DetroitNews #MustSee

Leslie Green Special to Crain's Detroit Business - Top executive: Ron Vaupel, president and CEO Patents in 2015: 58 Score: 107.20 Patents for Guardian Industries Corp. are primarily for its core business, the manufacturing of float glass and fabricated glass products for residential, commercial and automotive use. Last year, the company reached a $70 million settlement with the Environmental Protection Agency to reduce air pollution emissions at manufacturing plants in Michigan, California, Iowa, Texas, New York, Pennsylvania and South

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