Patents by Inventor Christopher R. Eicher

Christopher R. Eicher 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).

  • Patent number: 11370853
    Abstract: A method of processing an aqueous solution, wherein the aqueous solution comprises one or more dissolved sugar, one or more dissolved sugar alcohol, or a mixture thereof, wherein the method comprises bringing the aqueous solution into contact with a collection of resin beads, wherein the resin beads comprise functional groups of structure (S1).
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: June 28, 2022
    Inventors: Chang-Soo Lee, Collin H. Martin, Daryl J. Gisch, Christopher R. Eicher
  • Patent number: 11065599
    Abstract: Provided is a resin bead comprising functional groups of structure (S1).
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: July 20, 2021
    Assignees: DDP SPECIALTY ELECTRONIC MATERIALS US, LLC, DDP SPECIALTY ELECTRONIC MATERIALS US 8, LLC
    Inventors: Chang-Soo Lee, Collin H. Martin, Daryl J. Gisch, Christopher R. Eicher
  • Publication number: 20190366233
    Abstract: A method of processing an aqueous solution, wherein the aqueous solution comprises one or more dissolved sugar, one or more dissolved sugar alcohol, or a mixture thereof, wherein the method comprises bringing the aqueous solution into contact with a collection of resin beads, wherein the resin beads comprise functional groups of structure (S1).
    Type: Application
    Filed: December 30, 2016
    Publication date: December 5, 2019
    Inventors: Chang-Soo LEE, Collin H. MARTIN, Daryl J. GISCH, Christopher R. EICHER
  • Publication number: 20190314785
    Abstract: Provided is a resin bead comprising functional groups of structure (S1).
    Type: Application
    Filed: December 30, 2016
    Publication date: October 17, 2019
    Inventors: Chang-Soo LEE, Collin H. MARTIN, Daryl J. GISCH, Christopher R. EICHER
  • Patent number: 10258903
    Abstract: A method for chromatographically separating a first saccharide from a liquid eluent comprising the first saccharide and a second saccharide by passing the liquid eluent through a bed including a polymeric macroporous alkylene-bridged resin in calcium form.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: April 16, 2019
    Inventors: Daryl J. Gisch, Christopher R. Eicher, Stephen Pease, Gongwei Pu
  • Publication number: 20180257003
    Abstract: A method for chromatographically separating a first saccharide from a liquid eluent comprising the first saccharide and a second saccharide by passing the liquid eluent through a bed including a polymeric macroporous alkylene-bridged resin in calcium form.
    Type: Application
    Filed: February 26, 2016
    Publication date: September 13, 2018
    Inventors: Daryl J. Gisch, Christopher R. Eicher, Stephen Pease, Gongwei Pu
  • Publication number: 20180001228
    Abstract: A method for chromatographically separating a first saccharide from a liquid eluent comprising the first saccharide and a second saccharide by passing the liquid eluent through a bed comprising a gel-type strong acid cation exchange resin in calcium form, wherein the resin is provided in bead form and is characterized by comprising at least 20% whole cracked beads.
    Type: Application
    Filed: February 17, 2016
    Publication date: January 4, 2018
    Inventors: Daryl J. GISCH, Collin H. MARTIN, Christopher R. EICHER
  • Publication number: 20180001313
    Abstract: A method for chromatographically separating a first saccharide from a liquid eluent comprising the first saccharide and a second saccharide by passing the liquid eluent through a bed comprising a gel-type strong acid cation exchange resin in calcium form, wherein precipitated barium sulfate is incorporated within the resin.
    Type: Application
    Filed: February 26, 2016
    Publication date: January 4, 2018
    Inventors: Daryl J. GISCH, Christopher R. EICHER
  • Patent number: 9068247
    Abstract: A method for recovering nickel and cobalt from a PLS: (a) passing the PLS through an ion exchange bed to load nickel onto the ion exchange resin and produce a cobalt-containing raffinate solution, (b) passing sulfuric acid through the loaded bed to strip nickel from the resin and produce a nickel-containing eluate, (c) rinsing the stripped ion exchange bed, (d) adjusting the pH of the cobalt-containing raffinate solution to a pH of at least 2.3, (e) passing the cobalt-containing raffinate solution through an ion exchange bed to pre-load cobalt on the ion exchange resin, (f) repeating step (a) though (e) until the cobalt concentration of the cobalt-containing raffinate solution increases to >2× of the PLS, (g) removing a portion of the cobalt-containing raffinate solution of step (d) from the nickel recovery circuit, and (h) passing a portion of the cobalt-containing raffinate solution from step (d) to step (e).
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: June 30, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Charles R. Marston, Christopher R. Eicher
  • Publication number: 20150096412
    Abstract: A method for recovering nickel and cobalt from a product liquor solution by processing the product liquor solution through a continuous ion exchange process including a plurality of ion exchange beds containing nickel selective ion exchange resin that pass through individual process zones as part of a nickel recovery circuit, wherein the method includes the following steps: (a) passing the product liquor solution through an ion exchange bed to load nickel onto the ion exchange resin and produce a cobalt-containing raffinate solution, (b) passing a sulfuric acid solution through the loaded ion exchange bed to strip nickel from the exchange resin and produce a nickel-containing eluate, (c) passing a rinse solution through the stripped ion exchange bed, (d) adjusting the pH of the cobalt-containing raffinate solution to a pH of at least 2.
    Type: Application
    Filed: April 23, 2013
    Publication date: April 9, 2015
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Charles R. Marston, Christopher R. Eicher