 In October 1867, Nobel filed a patent for this new explosive in Sweden, the United States of America and in the United Kingdom (the patent was not filed in Germany before 1877).The new explosive was marketed under the name of security powder.In 1874, in order to ensure a better supply of the main buyers, the mines of the region of Ruhr, the company took over the Schlebusch factory in Manfort (since 1930 a district of Leverkusen; Nobel was involved in its construction since 1872 and supervised the production on a temporary basis.