Patents by Inventor Geraud J. Dubois
Geraud J. Dubois 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).
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Patent number: 11498063Abstract: A porous substrate susceptible to one or both of hydroxylation and alkoxylation by a first protic solvent is exposed to a first relative pressure of the first protic solvent. The porous substrate includes a first plurality of pores having a first average pore diameter and a second plurality of pores having a second average pore diameter that is greater than the first average pore diameter. The first relative pressure is effective to one or both of hydroxylate or alkoxylate substantially only pores of the first average pore diameter to form a first modified porous substrate. The first modified porous substrate is reacted with a first functionalizing reagent that is effective to functionalize one or both of hydroxylated or alkoxylated surfaces, thereby functionalizing substantially only the first plurality of the pores, to form a first functionalized porous substrate.Type: GrantFiled: October 4, 2019Date of Patent: November 15, 2022Assignee: International Business Machines CorporationInventors: Geraud J. Dubois, Bruno Michel, Patrick Ruch, Sarmenio Saliba, Willi Volksen
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Patent number: 10906007Abstract: A thin film composite membrane (TFC) includes an active layer on a support. The active layer includes at least 8 barrier layers of star-polymers each having at least three linear polymers attached at a central core. Each of the barrier layers has a thickness between 5 and 50 nm, and the barrier layers have alternating charge.Type: GrantFiled: September 5, 2017Date of Patent: February 2, 2021Assignee: International Business Machines CorporationInventors: Geraud J. Dubois, Victor Y. Lee, Robert D. Miller, Young-Hye Na, Joseph Sly
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Patent number: 10695724Abstract: A porous membrane with a molecular weight cut-off (MWCO) greater than about 10 kDa, and a coating on at least a portion of a major surface of the porous membrane. The coating includes a star polymer having a hydrophobic core and hydrophilic arms, wherein the hydrophobic core contacts the porous membrane.Type: GrantFiled: February 20, 2018Date of Patent: June 30, 2020Assignee: International Business Machines CorporationInventors: Geraud J. Dubois, Robert D. Miller, Young-Hye Na, Victoria Piunova, Joseph Sly, Andy T. Tek, Ran Wang
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Patent number: 10654002Abstract: A thin film composite (TFC) forward osmosis (FO) membrane includes a porous support with surfaces having thereon a hydrophilic self-assembled monolayer. An active layer on the support is sufficiently dense to remove an ionic species from a liquid.Type: GrantFiled: May 21, 2018Date of Patent: May 19, 2020Assignees: International Business Machines Corporation, San Jose State University Research FoundationInventors: Geraud J. Dubois, Robert D. Miller, Young-Hye Na, Victoria Piunova, Joseph Sly, Daniel Stillman
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Patent number: 10640396Abstract: A method includes removing glyphosate from a solution by contacting the solution with a mesoporous inorganic particle having an average pore size of greater than zero and less than about 50 nm, wherein the mesoporous inorganic particle is functionalized with a positively charged moiety selected from ammonium, amine and combinations thereof.Type: GrantFiled: November 30, 2018Date of Patent: May 5, 2020Assignee: International Business Machines CorporationInventors: Geraud J. Dubois, Young-Hye Na, Lianna C. Samuel, Ran Wang
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Publication number: 20200030784Abstract: A porous substrate susceptible to one or both of hydroxylation and alkoxylation by a first protic solvent is exposed to a first relative pressure of the first protic solvent. The porous substrate includes a first plurality of pores having a first average pore diameter and a second plurality of pores having a second average pore diameter that is greater than the first average pore diameter. The first relative pressure is effective to one or both of hydroxylate or alkoxylate substantially only pores of the first average pore diameter to form a first modified porous substrate. The first modified porous substrate is reacted with a first functionalizing reagent that is effective to functionalize one or both of hydroxylated or alkoxylated surfaces, thereby functionalizing substantially only the first plurality of the pores, to form a first functionalized porous substrate.Type: ApplicationFiled: October 4, 2019Publication date: January 30, 2020Inventors: Geraud J. Dubois, Bruno Michel, Patrick Ruch, Sarmenio Saliba, Willi Volksen
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Patent number: 10471418Abstract: A porous substrate susceptible to one or both of hydroxylation and alkoxylation by a first protic solvent is exposed to a first relative pressure of the first protic solvent. The porous substrate includes a first plurality of pores having a first average pore diameter and a second plurality of pores having a second average pore diameter that is greater than the first average pore diameter. The first relative pressure is effective to one or both of hydroxylate or alkoxylate substantially only pores of the first average pore diameter to form a first modified porous substrate. The first modified porous substrate is reacted with a first functionalizing reagent that is effective to functionalize one or both of hydroxylated or alkoxylated surfaces, thereby functionalizing substantially only the first plurality of the pores, to form a first functionalized porous substrate.Type: GrantFiled: October 16, 2015Date of Patent: November 12, 2019Assignee: International Business Machines CorporationInventors: Geraud J. Dubois, Bruno Michel, Patrick Ruch, Sarmenio Saliba, Willi Volksen
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Patent number: 10384172Abstract: A thin film composite membrane includes an active layer on a support membrane, wherein the active layer includes at least two chemically distinct first and second crosslinked polyamide film sub-layers. The first film sub-layer includes a polyamide unit; and the second film sub-layer includes a copolyamide with two chemically distinct polyamide units. The first film sub-layer is closer to the support than is the second film sub-layer.Type: GrantFiled: February 6, 2017Date of Patent: August 20, 2019Assignees: International Business Machines Corporation, King Abdulaziz City for Science and Technology (KACST)Inventors: Radwan A. Alrasheed, Blake W. Davis, Jacquana T. Diep, Geraud J. Dubois, Young-Hye Na, Majed S. Nassar, Ankit Vora
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Publication number: 20190092651Abstract: A method includes removing glyphosate from a solution by contacting the solution with a mesoporous inorganic particle having an average pore size of greater than zero and less than about 50 nm, wherein the mesoporous inorganic particle is functionalized with a positively charged moiety selected from ammonium, amine and combinations thereof.Type: ApplicationFiled: November 30, 2018Publication date: March 28, 2019Inventors: Geraud J. Dubois, Young-Hye Na, Lianna C. Samuel, Ran Wang
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Patent number: 10217661Abstract: An article may include a structure including a patterned metal on a surface of a substrate, the patterned metal including metal features separated by gaps of an average dimension of less than about 1000 nm. A porous low dielectric constant material having a dielectric value of less than about 2.7 substantially occupies all gaps. An interface between the metal features and the porous low dielectric constant material may include less than about 0.1% by volume of voids.Type: GrantFiled: September 5, 2017Date of Patent: February 26, 2019Assignee: International Business Machines CorporationInventors: Robert L. Bruce, Geraud J. Dubois, Gregory Fritz, Teddie P. Magbitang, Hiroyuki Miyazoe, Willi Volksen
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Patent number: 10155675Abstract: A method includes removing glyphosate from a solution by contacting the solution with a mesoporous inorganic particle having an average pore size of greater than zero and less than about 50 nm, wherein the mesoporous inorganic particle is functionalized with a positively charged moiety selected from ammonium, amine and combinations thereof.Type: GrantFiled: December 21, 2015Date of Patent: December 18, 2018Assignee: International Business Machines CorporationInventors: Geraud J. Dubois, Young-Hye Na, Lianna Samuel, Ran Wang
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Publication number: 20180339271Abstract: A thin film composite (TFC) forward osmosis (FO) membrane includes a porous support with surfaces having thereon a hydrophilic self-assembled monolayer. An active layer on the support is sufficiently dense to remove an ionic species from a liquid.Type: ApplicationFiled: May 21, 2018Publication date: November 29, 2018Inventors: Geraud J. Dubois, Robert D. Miller, Young-Hye Na, Victoria Piunova, Joseph Sly, Daniel Stillman
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Publication number: 20180178168Abstract: A porous membrane with a molecular weight cut-off (MWCO) greater than about 10 kDa, and a coating on at least a portion of a major surface of the porous membrane. The coating includes a star polymer having a hydrophobic core and hydrophilic arms, wherein the hydrophobic core contacts the porous membrane.Type: ApplicationFiled: February 20, 2018Publication date: June 28, 2018Inventors: Geraud J. Dubois, Robert D. Miller, Young-Hye Na, Victoria Piunova, Joseph Sly, Andy T. Tek, Ran Wang
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Patent number: 10005042Abstract: A thin film composite (TFC) forward osmosis (FO) membrane includes a porous support with surfaces having thereon a hydrophilic self-assembled monolayer. An active layer on the support is sufficiently dense to remove an ionic species from a liquid.Type: GrantFiled: February 16, 2015Date of Patent: June 26, 2018Assignees: International Business Machines Corporation, San Jose State University Research FoundationInventors: Geraud J. Dubois, Robert D. Miller, Young-Hye Na, Victoria Piunova, Joseph Sly, Daniel Stillman
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Patent number: 9931598Abstract: A porous membrane with a molecular weight cut-off (MWCO) greater than about 10 kDa, and a coating on at least a portion of a major surface of the porous membrane. The coating includes a star polymer having a hydrophobic core and hydrophilic arms, wherein the hydrophobic core contacts the porous membrane.Type: GrantFiled: February 16, 2015Date of Patent: April 3, 2018Assignee: International Business Machines CorporationInventors: Geraud J. Dubois, Robert D. Miller, Young-hye Na, Victoria Piunova, Joseph Sly, Andy T. Tek, Ran Wang
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Patent number: 9868650Abstract: A method for removing glyphosate from a solution by contacting the solution with a polymeric particle including a moiety selected from the group consisting of ammonium, amine and combinations thereof, wherein the moiety is positively charged in the solution.Type: GrantFiled: December 21, 2015Date of Patent: January 16, 2018Assignee: International Business Machines CorporationInventors: Robert D. Allen, Geraud J. Dubois, Young-Hye Na, Lianna C. Samuel, Joseph Sly, Ran Wang
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Publication number: 20170361281Abstract: A thin film composite membrane (TFC) includes an active layer on a support. The active layer includes at least 8 barrier layers of star-polymers each having at least three linear polymers attached at a central core. Each of the barrier layers has a thickness between 5 and 50 nm, and the barrier layers have alternating charge.Type: ApplicationFiled: September 5, 2017Publication date: December 21, 2017Inventors: Geraud J. Dubois, Victor Y. Lee, Robert D. Miller, Young-Hye Na, Joseph Sly
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Publication number: 20170365511Abstract: An article may include a structure including a patterned metal on a surface of a substrate, the patterned metal including metal features separated by gaps of an average dimension of less than about 1000 nm. A porous low dielectric constant material having a dielectric value of less than about 2.7 substantially occupies all gaps. An interface between the metal features and the porous low dielectric constant material may include less than about 0.1% by volume of voids.Type: ApplicationFiled: September 5, 2017Publication date: December 21, 2017Inventors: Robert L. Bruce, Geraud J. Dubois, Gregory Fritz, Teddie P. Magbitang, Hiroyuki Miyazoe, Willi Volksen
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Patent number: 9782727Abstract: A thin film composite membrane (TFC) includes an active layer on a support. The active layer includes at least 8 barrier layers of star-polymers each having at least three linear polymers attached at a central core. Each of the barrier layers has a thickness between 5 and 50 nm, and the barrier layers have alternating charge.Type: GrantFiled: July 14, 2014Date of Patent: October 10, 2017Assignee: International Business Machines CorporationInventors: Geraud J. Dubois, Victor Y. Lee, Robert D. Miller, Young-Hye Na, Joseph Sly
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Patent number: 9773698Abstract: An article may include a structure including a patterned metal on a surface of a substrate, the patterned metal including metal features separated by gaps of an average dimension of less than about 1000 nm. A porous low dielectric constant material having a dielectric value of less than about 2.7 substantially occupies all gaps. An interface between the metal features and the porous low dielectric constant material may include less than about 0.1% by volume of voids. A method may include depositing a filling material including a silicon-based resin having a molecular weight of less than about 30,000 Da and a porogen having a molecular weight greater than about 400 Da onto a structure comprising a patterned metal. The deposited filling material may be subjected to a first thermal treatment to substantially fill all gaps, and subjected to a second thermal treatment and a UV radiation treatment.Type: GrantFiled: September 30, 2015Date of Patent: September 26, 2017Assignee: International Business Machines CorporationInventors: Robert L. Bruce, Geraud J. Dubois, Gregory Fritz, Teddie P. Magbitang, Hiroyuki Miyazoe, Willi Volksen