Patents by Inventor Ronald K. Coen

Ronald K. Coen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Fine particle precious metal and liquid mercury recovery system and method using multi-layer filter with under-air flow
    Publication number: 20080087580
    Abstract: A multi-layer filter of cotton, plastic mesh and burlap with top and bottom metal mesh is sandwiched between two sections of wooden frame and mounted on a wind chamber. An even non-deflected steady stream of air under the filter produces an electro dynamic charge in the filter to attract fine particles of gold, silver, platinum, or mercury to the filter from a steady stream of earth material, containing fine particles, flowing over the downwardly angled filter.
    Type: Application
    Filed: October 17, 2006
    Publication date: April 17, 2008
    Inventor: Ronald K. Coen