Patents by Inventor William C. Schwerin

William C. Schwerin 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).

  • Preferential removal of hexavalent chromium from contaminated water
    Patent number: 10759680
    Abstract: A composition, process and apparatuses for removal of one or more contaminant anions from water are provided. In an embodiment, the process includes treating the water with a composition comprising a layered metal hydroxy salt, wherein the layered metal hydroxy salt is a compound comprising (a) a metal (b) a framework hydroxide, and (c) a replaceable anion.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: September 1, 2020
    Assignee: UOP LLC
    Inventors: Rashmi Patwardhan, Richard R. Willis, Jon E. Ball, Paulina Jakubczak, Mark G. Riley, William C. Schwerin, Roberto C. Flores
  • PREFERENTIAL REMOVAL OF HEXAVALENT CHROMIUM FROM CONTAMINATED WATER
    Publication number: 20170334746
    Abstract: A composition, process and apparatuses for removal of one or more contaminant anions from water are provided. In an embodiment, the process includes treating the water with a composition comprising a layered metal hydroxy salt, wherein the layered metal hydroxy salt is a compound comprising (a) a metal (b) a framework hydroxide, and (c) a replaceable anion.
    Type: Application
    Filed: May 5, 2017
    Publication date: November 23, 2017
    Inventors: Rashmi Patwardhan, Richard R. Willis, Jon E. Ball, Paulina Jakubczak, Mark G. Riley, William C. Schwerin, Roberto C. Flores
  • Extraction of certain metal cations from aqueous solutions
    Patent number: 5458787
    Abstract: Carbonaceous pyropolymers possessing recurring units containing at least carbon and hydrogen atoms on their surface are effective in removing from solution metal cations having a standard reduction potential to their zerovalent state of greater than -0.2 volts. Their mode of action appears to be via reduction of the metal to the zerovalent state which then is deposited on the pyropolymer surface.
    Type: Grant
    Filed: October 27, 1994
    Date of Patent: October 17, 1995
    Assignee: UOP
    Inventors: Richard R. Rosin, William C. Schwerin