Roy G. Neville Patent Collection

The Roy G. Neville Patent Collection contains legal correspondence and copies of patents awarded to Roy G. Neville between the years of 1977-1991. The first patent is for a method for the removal of free and complex cyanides from water, issued by the United States Patent and Trademark Office and numbered 4312760. The collection contains one official copy of the patent, with the seal attached. Additionally, five photocopies of this patent are included. Correspondence between Neville and the law offices of Townsend and Townsend as well as Homestake Mining Company regarding this patent is also included. In addition to the U.S. patent, the collection includes copies of the same patent, but issued by the Department of Industries, Commerce, and Tourism of South Africa, the European Patent Office, and the New Zealand government. The next patent is for the process for the removal of oxides of nitrogen and sulfur dioxide from waste gases. There is one copy of this patent and a renewal form, both from the law offices of Spoor and Fisher. The last patent represented in the collection is for anionic and cationic removal of copper from cyanide-containing wastewater. There are two official copies of is patent, one issued by Consumer and Corporate Affairs Canada and the second by the United States Patent and Trademark Office.