Patents by Inventor Gregory E. McWright

Gregory E. McWright 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).

  • Dispersing agents for comminuted solids
    Patent number: 5279664
    Abstract: A method for dispersing a comminuted solid in an aqueous medium is described. An aqueous dispersing agent is added to an aqueous medium in an amount sufficient to disperse the comminuted solid in the aqueous medium. The aqueous dispersing agent includes from about 10 wt. % to about 55 wt. % of an amine compound selected from the group consisting of alkanolamines, triethylamine and morpholine, from about 15 wt. % to about 35 wt. % of a base selected from the group consisting of sodium hydroxide and potassium hydroxide, and from about 0.1 wt. % to about 15 wt. % chelating agent.
    Type: Grant
    Filed: December 17, 1991
    Date of Patent: January 18, 1994
    Assignee: Angus Chemical Company
    Inventors: Glenn N. Robinson, Gregory E. McWright