Patents by Inventor Stephen Pease

Stephen Pease 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: 11000781
    Abstract: Provided is a process for purifying an aqueous solution, wherein the aqueous solution comprises one or more sugars and additionally comprises furfural, hydroxymethylfurfural, or a mixture thereof; wherein the process comprises passing the aqueous solution through a collection of resin particles; and wherein the resin particles comprise covalently bound acid functional groups.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: May 11, 2021
    Assignee: DDP SPECIALTY ELECTRONIC MATERIALS US 8, LLC
    Inventors: Collin H. Martin, Stephen Pease
  • Patent number: 10550064
    Abstract: A process of separating carboxylic acids comprising two steps. The first step is to provide an aqueous solution comprising (i) one or more mono-carboxylic acids, (ii) one or more di-carboxylic acids, and (iii) one or more tri-carboxylic acids. The second step is to pass the aqueous solution through a collection of resin particles, where the resin particles comprise covalently bound quaternary ammonium groups, and wherein the collection of resin particles has uniformity coefficient of 1.5 or less.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: February 4, 2020
    Assignees: ROHM AND HAAS COMPANY, DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Collin H. Martin, Stephen Pease, Daryl J. Gisch, Stanislas Baudouin
  • 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: 20180326323
    Abstract: A method for chromatographically separating propionic acid from a liquid feed mixture including propionic acid and a carbohydrate by passing the liquid feed mixture through a bed including a strong base anion exchange resin.
    Type: Application
    Filed: November 22, 2016
    Publication date: November 15, 2018
    Applicants: Dow Global Technologies LLC, Rohm and Haas Company
    Inventors: Stephen Pease, Daryl J. Gisch, Collin H. Martin, Bianca F. Martins
  • Publication number: 20180312459
    Abstract: Provided is a process of separating carboxylic acids comprising (a) providing an aqueous solution comprising (i) one or more mono-carboxylic acids, (ii) one or more di-carboxylic acids, and (iii) one or more tri-carboxylic acids, and (b) passing the aqueous solution through a collection of resin particles, where the resin particles comprise covalently bound quaternary ammonium groups, and wherein the collection of resin particles has uniformity coefficient of 1.5 or less.
    Type: Application
    Filed: November 1, 2016
    Publication date: November 1, 2018
    Inventors: Collin H. Martin, Stephen Pease, Daryl J. Gisch, Stanislas Baudouin
  • Publication number: 20180304172
    Abstract: Provided is a process for purifying an aqueous solution, wherein the aqueous solution comprises one or more sugars and additionally comprises furfural, hydroxymethylfurfural, or a mixture thereof; wherein the process comprises passing the aqueous solution through a collection of resin particles; and wherein the resin particles comprise covalently bound acid functional groups.
    Type: Application
    Filed: November 1, 2016
    Publication date: October 25, 2018
    Inventors: Collin H. Martin, Stephen Pease
  • 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: 20160325232
    Abstract: Provided is a process for extracting valuable components from cane vinasse comprising a) filtering said cane vinasse to produce a retentate (RA) and a permeate (PA), b) concentrating said permeate (PA) to produce a permeate (PB) and a retentate (RB), c) performing ion exclusion chromatography on said retentate (RB) to produce an extract (EC) and a raffinate (RC), d) performing one or both of the following: i) performing affinity chromatography on said extract (EC) to produce a raffinate (RDI) that contains inositol and an extract (EDI) that contains glycerol, and ii) performing a separation on said raffinate (RC) to produce a retentate (RDII) that contains polycosanol.
    Type: Application
    Filed: December 9, 2014
    Publication date: November 10, 2016
    Inventors: Peter E.M. Aerts, Renato Ramos, Stephen Pease, Stanislas Baudouin
  • Publication number: 20160311743
    Abstract: Provided is a process for extracting polycosanol from cane vinasse comprising providing a cane vinasse concentrate, wherein the amount of organic compounds in said cane vinasse concentrate is 35 g/1 or more, and wherein said cane vinasse concentrate is effectively free of solid particles having diameter of 10 ?m or higher, performing an ion exclusion chromatography step c) on said cane vinasse concentrate to produce an extract (EC) and a raffinate (RC), performing a concentration step y) on said raffinate (RC) to produce a permeate (PY) and a retentate (RY), and performing a separation step d)ii) on said retentate (RY) to produce a retentate (RDII) that contains polycosanol.
    Type: Application
    Filed: December 9, 2014
    Publication date: October 27, 2016
    Inventors: Peter E.M. AERTS, Renato RAMOS, Stephen PEASE, Stanislas BAUDOUIN
  • Patent number: 9441280
    Abstract: A chromatographic method for separating a sugar from a sugar-containing liquid feed mixture by: contacting the liquid feed mixture with a stratum of cation exchange resin comprising a crosslinked copolymer matrix functionalized with sulfonic acid groups, and recovering a first product stream from the stratum that has a higher purity of the sugar than present in the liquid feed mixture. The method is characterized by the stratum of cation exchange resin including: i) at least 80 wt % of cation exchange resin including alkaline earth counter ions, and ii) at least 5 wt % of cation exchange resin including alkali earth counter ions.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: September 13, 2016
    Inventors: Stephen Pease, Gongwei Pu
  • Publication number: 20160194727
    Abstract: A chromatographic method for separating a sugar from a sugar-containing liquid feed mixture by: contacting the liquid feed mixture with a stratum of cation exchange resin comprising a crosslinked copolymer matrix functionalized with sulfonic acid groups, and recovering a first product stream from the stratum that has a higher purity of the sugar than present in the liquid feed mixture. The method is characterized by the stratum of cation exchange resin including: i) at least 80 wt % of cation exchange resin including alkaline earth counter ions, and ii) at least 5 wt % of cation exchange resin including alkali earth counter ions.
    Type: Application
    Filed: August 15, 2014
    Publication date: July 7, 2016
    Inventors: Stephen Pease, Gongwei Pu
  • Publication number: 20090291171
    Abstract: The present invention relates to beverage stabilization, more precisely to a method for stabilization of beverages by removing haze-forming substances with ion exchange resin technology.
    Type: Application
    Filed: May 21, 2009
    Publication date: November 26, 2009
    Inventors: Simon A. Bellamy, Stephen Pease