United States Patent: 4994498
We've many times documented the plain fact, that, at one time, for a number of decades, Coal was being efficiently converted into liquid fuels just down and across the Kanawha River from, perhaps almost in sight of, the West Virginia State Capitol Building.
Union Carbide Corporation, at a couple of sites near and around Charleston, WV, starting in the late 1950's and even up until the early 1990's, prior to their assimilation by, in 2001 we believe, Dow Chemical Company, devoted a seemingly concentrated effort into demonstrating that Coal could be efficiently converted into a wide variety of hydrocarbons, which hydrocarbons included, even, synthetic rubber.