Patents by Inventor Edward Maleskas

Edward Maleskas 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).

  • Method of reducing the formation of scale in the production of soda ash from trona and nahcolite ores
    Patent number: 6022516
    Abstract: The methods for decreasing scale formation in processes for the production of soda ash from trona or nahcolite ores are provided. Diphosphonic acid materials such as 1-hydroxy-ethylidene diphosphonic acid, 1-hydroxy-propylidene-1,-diphosphonic acid, 1-hydroxy-butylidene-1,-diphosphonic acid and 1-hydroxy-pentylidene-1,-diphosphonic acid have been found to diminish significantly the formation of magnesium scale in such processes.
    Type: Grant
    Filed: June 17, 1998
    Date of Patent: February 8, 2000
    Assignee: FMC Corporation
    Inventors: William C. Copenhafer, Edward Maleskas