Patents by Inventor Joydeep Lahiri

Joydeep Lahiri 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).

  • Publication number: 20240099307
    Abstract: A method for making an antimicrobial composite film can include forming a first coating layer by applying a first coating material on a substrate and forming a second coating layer by applying a second coating material on the first coating layer. The first coating material can comprise a first resin. The second coating material can comprise an antimicrobial material in a second resin or a dispersion. The first coating material can have a lower concentration of the antimicrobial material than the second coating material. The first and second coating layers can cooperatively define a composite film. The antimicrobial material can be asymmetrically dispersed in the composite film such that the antimicrobial material is concentrated closer to the outer surface of the composite film than to the inner surface of the composite film.
    Type: Application
    Filed: February 4, 2022
    Publication date: March 28, 2024
    Inventors: Bavani Balakrisnan, Charles Brandenburg, Douglas Edmon Goforth, Cassandra Ann Haynes, Insik Jeon, Jenny Kim, Joydeep Lahiri, Jin Liu, Kevin Robert McCarthy, Michael Lesley Sorensen
  • Publication number: 20240081336
    Abstract: A biocidal material and method of forming is provided. The biocidal material includes a carrier and a plurality of treated copper-containing particles including a particle surface pre-treatment. The surface pre-treatment includes a copper-chelating material.
    Type: Application
    Filed: September 9, 2020
    Publication date: March 14, 2024
    Inventors: Bavani Balakrisnan, Stephen Joseph Caracci, David Michael Fasano, Joydeep Lahiri, Joseph Martin Rokowski
  • Patent number: 11326062
    Abstract: Aspects of this disclosure pertain to a colorless material that includes a carrier, copper-containing particles, and either one or both of sodium thiocyanate and titanium dioxide. In one or more embodiments, the material exhibits, in the CIE L*a*b* system, an L* value in the range from about 91 to about 100, and a C* value of less than about 7, wherein C* equals ?(a*2+b*2). In some embodiments, the material exhibits a greater than 3 log reduction in a concentration of Staphylococcus aureus, under the EPA Test Method for Efficacy of Copper Alloy as a Sanitizer testing conditions.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: May 10, 2022
    Assignee: Corning Incorporated
    Inventors: Joydeep Lahiri, Jeffrey Glenn Lynn, Florence Christine Monique Verrier
  • Patent number: 11186516
    Abstract: A substrate for use in fluorescent-detection methods is provided. The substrate includes at least one glass substrate portion, the at least one glass substrate portion including: between about 60 mol % to about 80 mol % SiO2; between about 0 mol % to about 15 mol % Al2O3; between about 0 mol % to about 15 mol % B2O3; and about 2 mol % to about 50 mol % RxO, wherein R is any one or more of Li, Na, K, Rb, Cs and x is 2, or wherein R is any one or more of Zn, Mg, Ca, Sr or Ba and x is 1.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: November 30, 2021
    Assignee: Corning Incorporated
    Inventors: Melissann Marie Ashton-Patton, Adam James Ellison, Ellen Anne King, Joydeep Lahiri, Shawn Michael O'Malley
  • Publication number: 20210291173
    Abstract: A microfluidic device includes a first substrate comprising a surface, a flow channel disposed in the first substrate such that a sidewall of the flow channel extends between a floor of the flow channel and the surface, a film disposed on the floor of the flow channel, an array of wells disposed in the film, and a second substrate bonded to the surface of the first substrate, whereby the second substrate at least partially covers the flow channel.
    Type: Application
    Filed: July 30, 2019
    Publication date: September 23, 2021
    Inventors: Ye Fang, Joydeep Lahiri, Georges Roussos, Paul Michael Then
  • Publication number: 20210154985
    Abstract: According to various examples of the present disclosure, an antimicrobial assembly includes a substrate comprising a matrix material having opposed first and second surfaces with a total thickness of the substrate defined therebetween. The assembly further includes an antimicrobial composition bound to the substrate and heterogeneously distributed about the antimicrobial assembly.
    Type: Application
    Filed: November 6, 2020
    Publication date: May 27, 2021
    Inventors: Bavani Balakrisnan, Brian Joseph Hanlon, Joydeep Lahiri, Bryan Patrick Livengood, Timothy James Orsley
  • Patent number: 10897907
    Abstract: Aspects of this disclosure pertain to a colorless material that includes a carrier, copper-containing particles, and quaternary ammonium. In one or more embodiments, the material exhibits, in the CIE L*a*b* system, an L* value in the range from about 91 to about 100, and a C* value of less than about 7, wherein C* equals ?(a*2+b*2). In some embodiments, the material exhibits a greater than 3 log reduction in a concentration of Staphylococcus aureus, under the EPA Test Method for Efficacy of Copper Alloy as a Sanitizer testing conditions.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: January 26, 2021
    Assignee: CORNING INCORPORATED
    Inventors: Joydeep Lahiri, Florence Christine Monique Verrier
  • Patent number: 10876096
    Abstract: Cell culture compositions containing LFM-A13 or a structurally related compound can enhance global hepatic function. For example, LFM-A13 is shown to enhance levels of a broad variety of drug metabolism enzymes, including CYP enzymes, and other hepatic enzymes. LFM-A13 is also shown to promote differentiation of stem cells into hepatocytes. LFM-A13 and structurally related compounds can be used in cell culture to enhance global drug metabolism of liver cells for enhanced in vitro study the effects of drug metabolism on other candidate drug compounds.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: December 29, 2020
    Assignee: Corning Incorporated
    Inventors: Ronald Allen Faris, Yulong Hong, Joydeep Lahiri, Jin Liu, Olivia Grace Weeks
  • Publication number: 20200323217
    Abstract: An antimicrobial floor coating is provided that includes a matrix comprising a polymeric material; and a plurality of second phase particles comprising a controlled release agent, the controlled release agent comprising a plurality of antimicrobial copper ions. The polymeric material comprises an epoxy and an acrylic, and the plurality of second phase particles is distributed within the matrix. Further, an exterior surface of the coating exhibits at least a 2 log reduction in a concentration of Staphylococcus aureus under a Modified EPA Copper Test Protocol. Further, the controlled release agent can comprise a phase-separable glass.
    Type: Application
    Filed: October 31, 2018
    Publication date: October 15, 2020
    Inventors: Jackie Lynn Frederick, Joydeep Lahiri, Paul Francis Novak, JR., Florence Christine Monique Verrier
  • Publication number: 20200120938
    Abstract: Aspects of this disclosure pertain to a colorless material that includes a carrier, copper-containing particles, and quaternary ammonium. In one or more embodiments, the material exhibits, in the CIE L*a*b* system, an L* value in the range from about 91 to about 100, and a C* value of less than about 7, wherein C* equals ?(a*2+b*2). In some embodiments, the material exhibits a greater than 3 log reduction in a concentration of Staphylococcus aureus, under the EPA Test Method for Efficacy of Copper Alloy as a Sanitizer testing conditions.
    Type: Application
    Filed: December 18, 2019
    Publication date: April 23, 2020
    Inventors: JOYDEEP LAHIRI, FLORENCE CHRISTINE MONIQUE VERRIER
  • Publication number: 20200123395
    Abstract: Aspects of this disclosure pertain to a colorless material that includes a carrier, copper-containing particles, and either one or both of sodium thiocyanate and titanium dioxide. In one or more embodiments, the material exhibits, in the CIE L*a*b* system, an L* value in the range from about 91 to about 100, and a C* value of less than about 7, wherein C* equals ?(a*2+b*2). In some embodiments, the material exhibits a greater than 3 log reduction in a concentration of Staphylococcus aureus, under the EPA Test Method for Efficacy of Copper Alloy as a Sanitizer testing conditions.
    Type: Application
    Filed: December 18, 2019
    Publication date: April 23, 2020
    Inventors: JOYDEEP LAHIRI, JEFFREY GLENN LYNN, FLORENCE CHRISTIN MONIQUE VERRIER
  • Patent number: 10561147
    Abstract: Aspects of this disclosure pertain to a colorless material that includes a carrier, copper-containing particles, and quaternary ammonium. In one or more embodiments, the material exhibits, in the CIE L*a*b* system, an L* value in the range from about 91 to about 100, and a C* value of less than about 7, wherein C* equals ?(a*2+b*2). In some embodiments, the material exhibits a greater than 3 log reduction in a concentration of Staphylococcus aureus, under the EPA Test Method for Efficacy of Copper Alloy as a Sanitizer testing conditions.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: February 18, 2020
    Assignee: CORNING INCORPORATED
    Inventors: Joydeep Lahiri, Florence Christine Monique Verrier
  • Patent number: 10550270
    Abstract: Aspects of this disclosure pertain to a colorless material that includes a carrier, copper-containing particles, and either one or both of sodium thiocyanate and titanium dioxide. In one or more embodiments, the material exhibits, in the CIE L*a*b* system, an L* value in the range from about 91 to about 100, and a C* value of less than about 7, wherein C* equals ?(a*2+b*2). In some embodiments, the material exhibits a greater than 3 log reduction in a concentration of Staphylococcus aureus, under the EPA Test Method for Efficacy of Copper Alloy as a Sanitizer testing conditions.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: February 4, 2020
    Assignee: CORNING INCORPORATED
    Inventors: Joydeep Lahiri, Jeffrey Glenn Lynn, Florence Christine Monique Verrier
  • Patent number: 10314313
    Abstract: Embodiments of the present invention pertain to a material including a carrier and a co-biocide including copper ions and a biocide such as ZnPT, Tralopyril or a combination thereof. The material may include a copper-containing glass particles or cuprous oxide particles. In some embodiments, the copper-containing glass may include glass phase and a cuprite phase. In other embodiments, the copper-containing glass may include as plurality of Cu1+ ions, a degradable phase including B2O3, P2O5 and K2O and a durable phase including SiO2. In some embodiments, the carrier is a paint.
    Type: Grant
    Filed: May 2, 2016
    Date of Patent: June 11, 2019
    Assignee: CORNING INCORPORATED
    Inventors: Joydeep Lahiri, Jeffrey Glenn Lynn, Florence Christine Monique Verrier
  • Publication number: 20190029261
    Abstract: Aspects of this disclosure pertain to a colorless material that includes a carrier, copper-containing particles, and quaternary ammonium. In one or more embodiments, the material exhibits, in the CIE L*a*b* system, an L* value in the range from about 91 to about 100, and a C* value of less than about 7, wherein C* equals ?(a*2+b*2). In some embodiments, the material exhibits a greater than 3 log reduction in a concentration of Staphylococcus aureus, under the EPA Test Method for Efficacy of Copper Alloy as a Sanitizer testing conditions.
    Type: Application
    Filed: January 26, 2017
    Publication date: January 31, 2019
    Inventors: Joydeep Lahiri, Florence Christine Monique Verrier
  • Publication number: 20180305240
    Abstract: A substrate for use in fluorescent-detection methods is provided. The substrate includes at least one glass substrate portion, the at least one glass substrate portion including: between about 60 mol % to about 80 mol % SiO2; between about 0 mol % to about 15 mol % Al2O3; between about 0 mol % to about 15 mol % B2O3; and about 2 mol % to about 50 mol % RxO, wherein R is any one or more of Li, Na, K, Rb, Cs and x is 2, or wherein R is any one or more of Zn, Mg, Ca, Sr or Ba and x is 1.
    Type: Application
    Filed: October 21, 2016
    Publication date: October 25, 2018
    Inventors: Melissann Marie Ashton-Patton, Adam James Ellison, Ellen Anne King, Joydeep Lahiri, Shawn Michael O'Malley
  • Publication number: 20180289010
    Abstract: Embodiments of the present invention pertain to a material including a carrier and a co-biocide including copper ions and a biocide such as ZnPT, Tralopyril or a combination thereof. The material may include a copper-containing glass particles or cuprous oxide particles. In some embodiments, the copper-containing glass may include glass phase and a cuprite phase. In other embodiments, the copper-containing glass may include as plurality of Cu1+ ions, a degradable phase including B2O3, P2O5 and K2O and a durable phase including SiO2. In some embodiments, the carrier is a paint.
    Type: Application
    Filed: May 2, 2016
    Publication date: October 11, 2018
    Inventors: Joydeep Lahiri, Jeffrey Glenn Lynn, Florence Christine Monique Verrier
  • Publication number: 20180171156
    Abstract: Aspects of this disclosure pertain to a colorless material that includes a carrier, copper-containing particles, and either one or both of sodium thiocyanate and titanium dioxide. In one or more embodiments, the material exhibits, in the CIE L*a*b* system, an L* value in the range from about 91 to about 100, and a C* value of less than about 7, wherein C* equals ?(a*2+b*2). In some embodiments, the material exhibits a greater than 3 log reduction in a concentration of Staphylococcus aureus, under the EPA Test Method for Efficacy of Copper Alloy as a Sanitizer testing conditions.
    Type: Application
    Filed: June 22, 2016
    Publication date: June 21, 2018
    Inventors: Joydeep LAHIRI, Jeffrey Glenn LYNN, Florence Christine Monique VERRIER
  • Patent number: 9534766
    Abstract: Lighting units and light fixtures incorporating lighting units having light-diffusing optical fiber are disclosed. Lighting units include a light source, at least one light-diffusing optical fiber optically coupled to the light source, and a support plate. The at least one light-diffusing optical fiber scatters light that is optically coupled into the at least one light-diffusing optical fiber from the light source. The support plate has a retention groove to which a portion of the at least one light-diffusing optical fiber is coupled. The support plate also includes a perimeter. A groove length of the retention groove is greater than the perimeter of the support plate.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: January 3, 2017
    Assignee: Corning Incorporated
    Inventors: Edward John Fewkes, Jacques Gollier, Joydeep Lahiri, Stephan Lvovich Logunov, William James Miller, Ying Zhang
  • Publication number: 20160010833
    Abstract: Lighting units and light fixtures incorporating lighting units having light-diffusing optical fiber are disclosed. Lighting units include a light source, at least one light-diffusing optical fiber optically coupled to the light source, and a support plate. The at least one light-diffusing optical fiber scatters light that is optically coupled into the at least one light-diffusing optical fiber from the light source. The support plate has a retention groove to which a portion of the at least one light-diffusing optical fiber is coupled. The support plate also includes a perimeter. A groove length of the retention groove is greater than the perimeter of the support plate.
    Type: Application
    Filed: July 9, 2014
    Publication date: January 14, 2016
    Inventors: Edward John Fewkes, Jacques Gollier, Joydeep Lahiri, Stephan Lvovich Logunov, William James Miller, Ying Zhang