Patents by Inventor Abraham Joy

Abraham Joy 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: 11542359
    Abstract: A photoresponsive polyurethane including a hard segment, a soft segment, and a photoresponsive group that is selected from a coumarin group or a coumarin derivative and an alkoxyphencyl group or an alkoxyphencyl.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: January 3, 2023
    Assignee: The University of Akron
    Inventors: Abraham Joy, Kaushik Mishra, Yen-Ming Tseng
  • Publication number: 20210302446
    Abstract: A safe and reliable drug detection device is provided that detects the presence of opioids and other amine-containing drugs, and enables first responders, law enforcement personnel, and others to avoid inadvertent exposure to these potentially lethal drugs. The detector device includes a substrate and a dye that produces a visible color change rapidly when the device is brought into contact with an opioid or other amine-containing drug. A method for preparing the detector device and a method for detecting opioids and other amine-containing drugs on a surface are also provided.
    Type: Application
    Filed: July 9, 2019
    Publication date: September 30, 2021
    Inventor: Abraham Joy
  • Patent number: 11116211
    Abstract: A functionalized polyurethane polymer is provided, the polymer defined by the formula where each R? is independently derived from a diisocyanate, where each R? represents the soft segment of the polymer, where n is the number of repeat units within the soft segment of the polymer, where m is the number of repeating mer units in the polymer, where each E is a pendant-functionalized amide unit chain extender, wherein the nitrogen atom of the amide group is part of the polymer backbone. A method for preparing the polymer is also provided.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: September 14, 2021
    Assignee: The University of Akron
    Inventors: Abraham Joy, Chao Peng, Zhuoran Li, Nicholas Nun, Apoorva Vishwakarma
  • Patent number: 11033573
    Abstract: A non-ionic polymer coacervate is provided that is useful for forming adhesive bonds between wet surfaces, and that operates over a wide range of pH.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: June 15, 2021
    Assignee: The University of Akron
    Inventors: Abraham Joy, Amal Narayanan
  • Patent number: 10899885
    Abstract: Photoresponsive polymers that comprise a unit derived from an amide functional diol compound that includes a coumarin group are provided. Advantageously, the photoresponsive groups of the photoresponsive polymers may be used to control the viscosity of the photoresponsive polymer. The photoresponsize polymers may also include units derived from amide functional diol compounds with include a fatty acid chain or a polyethylene glycol chain. The photoresponsive polymers may be used for 3d printing. When an adhesive group is added to a photoresponsive polymer they may be used as an adhesive. Adhesive groups include catechol groups.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: January 26, 2021
    Assignee: The University of Akron
    Inventors: Abraham Joy, Ying Xu, Sudhanva Raj Govindarajan, John Swanson
  • Patent number: 10598577
    Abstract: A method includes providing a biological sample, providing a sample collection device, wherein the sample collection device includes a sample binding surface including a photodegradable polymer configured to bind the biological sample, contacting the biological sample with the sample binding surface of the sample collection device, and irradiating the sample binding surface and the bound biological sample using light emitted from a light source to initiate degradation of the photodegradable polymer of the sample binding surface to cause release of the biological sample.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: March 24, 2020
    Assignee: General Electric Company
    Inventors: Arunkumar Natarajan, John Richard Nelson, Patrick McCoy Spooner, Ralf Lenigk, Wei Gao, Kwok Pong Chan, Lakshmi Sireesha Kaanumalle, Abraham Joy, Nicholas Nun
  • Publication number: 20190297883
    Abstract: A functionalized polyurethane polymer is provided, the polymer defined by the formula where each R? is independently derived from a diisocyanate, where each R? represents the soft segment of the polymer, where n is the number of repeat units within the soft segment of the polymer, where m is the number of repeating mer units in the polymer, where each E is a pendant-functionalized amide unit chain extender, wherein the nitrogen atom of the amide group is part of the polymer backbone. A method for preparing the polymer is also provided.
    Type: Application
    Filed: June 12, 2019
    Publication date: October 3, 2019
    Inventors: Abraham Joy, Chao Peng, Zhuoran Li, Nicholas Nun, Apoorva Vishwakarma
  • Publication number: 20190276583
    Abstract: A functionalized polyurethane polymer is provided, the polymer defined by the formula where each R? is independently derived from a diisocyanate, where each R? represents the soft segment of the polymer, where n is the number of repeat units within the soft segment of the polymer, where m is the number of repeating mer units in the polymer, where each E is a pendant-functionalized amide unit chain extender, wherein the nitrogen atom of the amide group is part of the polymer backbone. A method for preparing the polymer is also provided.
    Type: Application
    Filed: March 11, 2019
    Publication date: September 12, 2019
    Inventors: Abraham Joy, Chao Peng, Zhuoran Li, Nicholas Nun, Apoorva Vishwakarma
  • Publication number: 20190211135
    Abstract: A photoresponsive polyurethane including a hard segment, a soft segment, and a photoresponsive group that is selected from a coumarin group or a coumarin derivative and an alkoxyphencyl group or an alkoxyphencyl.
    Type: Application
    Filed: August 24, 2017
    Publication date: July 11, 2019
    Applicant: The University of Akron
    Inventors: Abraham Joy, Kaushik Mishra, Yen-Ming Tseng
  • Patent number: 10336862
    Abstract: Amide compounds are defined and are polymerized to create polyesters and polyurethanes having amide units bearing a pendant functional group, where the nitrogen atom of the amide group is part of the polymer backbone. The pendant functional group of the functionalized amide polymer may be modified or added by post polymerization functionalization of the functionalized amide polymer. The pendant functional group of the functionalized amide polymer may include a protecting group that may be removed after polymerization. The pendant functional groups of the functionalized amide polymers may be used to modulate the physical, chemical and biological properties of the polymers.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: July 2, 2019
    Assignee: THE UNIVERSITY OF AKRON
    Inventors: Abraham Joy, Sachin Gokhale, Ying Xu
  • Patent number: 10336923
    Abstract: Provided is a pressure sensitive adhesive polymer comprising adhesive polymerscrosslinked with a crosslinker that includes a photoresponsive group. Also provided is a method for preparing a pressure sensitive adhesive polymer comprising: polymerizing an vinyl monomer and photoresponsive crosslinker with two acryl end groups.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: July 2, 2019
    Assignee: The University of Akron
    Inventors: Abraham Joy, Ali Dhinojwala, Kaushik Mishra
  • Publication number: 20190059395
    Abstract: The present invention discloses a platen apparatus (300) and method (400) for cooking dough using a combination of convective and conductive heating. The apparatus (300) comprises a platen unit including a top heating assembly (320) and a bottom heating assembly (310) to press a dough ball into a flat disc, the bottom heating assembly (310) including a first heating unit configured to provide conductive heat to the platen unit; a linear motion mechanism (350) configured to move the top heating assembly (320) linearly with respect to the bottom heating assembly (310); and a second heating unit (314) including a secondary heating coil (332) and a blower unit (331) to provide convective heat to the platen unit; and a control unit to control the heating of the platen unit; such that the temperature of the second heating unit (314) is higher than the temperature of the first heating unit.
    Type: Application
    Filed: August 31, 2018
    Publication date: February 28, 2019
    Inventors: Nibu Alias, Ani Abraham Joy, Midhun Skaria
  • Publication number: 20190003940
    Abstract: A method includes providing a biological sample, providing a sample collection device, wherein the sample collection device includes a sample binding surface including a photodegradable polymer configured to bind the biological sample, contacting the biological sample with the sample binding surface of the sample collection device, and irradiating the sample binding surface and the bound biological sample using light emitted from a light source to initiate degradation of the photodegradable polymer of the sample binding surface to cause release of the biological sample.
    Type: Application
    Filed: June 30, 2017
    Publication date: January 3, 2019
    Inventors: Arunkumar Natarajan, John Richard Nelson, Patrick McCoy Spooner, Ralf Lenigk, Wei Gao, Kwok Pong Chan, Lakshmi Sireesha Kaanumalle, Abraham Joy, Nicholas Nun
  • Publication number: 20180371158
    Abstract: A controlled release polymer is provided which includes a polymer that has backbone selected from polyesters and polyurethanes, and an amide group with a pendant functional group, where the nitrogen atom of the amide group is part of the polymer backbone, and an active compound dispersed in the polymer.
    Type: Application
    Filed: December 19, 2016
    Publication date: December 27, 2018
    Inventors: Abraham Joy, Tanmay Jain
  • Patent number: 10118887
    Abstract: Polymers including ?-hydroxymethylacrylate units and methods of preparing polymers from ?-hydroxymethylacrylates are provided. Advantageously, ?-hydroxymethylacrylates may be used in an emulsion polymerization and function as a polymerizable surfactant. The ability of the ?-hydroxymethylacrylates to be used as a polymerizable surfactant allows for emulsion polymerization systems to be prepared without other surfactants.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: November 6, 2018
    Assignee: The University of Akron
    Inventors: Abraham Joy, Chao Peng
  • Patent number: 10106514
    Abstract: A thermoresponsive polyester comprising units derived from an amide functional diol compound having a first amide group having a nitrogen atom and a carbonyl group; a second amide group tethered directly or indirectly through an organic group at the carbonyl group of the first amide group; and two organic groups terminated with a hydroxyl group attached to the nitrogen atom of the first amide group. The thermoresponsive polyesters exhibit a lower critical solution temperature at which they undergo a thermally induced reversible hydrophobicity change. This hydrophobicity change may involve the formation of coacervates of the thermoresponsive polyesters which can then coalesce into a precipitated polymer rich phase.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: October 23, 2018
    Assignee: The University of Akron
    Inventors: Abraham Joy, John Swanson
  • Patent number: 9963540
    Abstract: A method of preparing a polymer is provided comprising preparing a Baylis-Hillman adduct by reacting an activated alkene with a carbon electrophile; and polymerizing the Baylis-Hillman adduct. The Baylis-Hillman reaction provides an efficient platform for the synthesis of densely functionalized monomers, from which polymers with multiple functional groups can be readily synthesized. It has been discovered that that Baylis-Hillman adducts are versatile monomers for both controlled radical and step-growth polymerizations.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: May 8, 2018
    Assignee: The University of Akron
    Inventors: Abraham Joy, Chao Peng
  • Publication number: 20170298183
    Abstract: Photoresponsive polymers that comprise a unit derived from an amide functional diol compound that includes a coumarin group are provided. Advantageously, the photoresponsive groups of the photoresponsive polymers may be used to control the viscosity of the photoresponsive polymer. The photoresponsize polymers may also include units derived from amide functional diol compounds with include a fatty acid chain or a polyethylene glycol chain. The photoresponsive polymers may be used for 3d printing. When an adhesive group is added to a photoresponsive polymer they may be used as an adhesive. Adhesive groups include catechol groups.
    Type: Application
    Filed: September 22, 2015
    Publication date: October 19, 2017
    Inventors: Abraham Joy, Ying Xu, Sudhanva Raj Govindarajan, John Swanson
  • Publication number: 20170247506
    Abstract: Amide compounds are defined and are polymerized to create polyesters and polyurethanes having amide units bearing a pendant functional group, where the nitrogen atom of the amide group is part of the polymer backbone. The pendant functional group of the functionalized amide polymer may be modified or added by post polymerization functionalization of the functionalized amide polymer. The pendant functional group of the functionalized amide polymer may include a protecting group that may be removed after polymerization. The pendant functional groups of the functionalized amide polymers may be used to modulate the physical, chemical and biological properties of the polymers.
    Type: Application
    Filed: February 14, 2017
    Publication date: August 31, 2017
    Inventors: Abraham Joy, Sachin Gokhale, Ying Xu
  • Publication number: 20170172147
    Abstract: Methods for killing a microbial are provided that include introducing a functionalized amide polymer to a microbe, where the functionalized amide polymer includes a polymer backbone selected from polyesters and polyurethanes; an amide group with a pendant functional group, where the nitrogen atom of the amide group is part of the polymer backbone; and a net positive charge.
    Type: Application
    Filed: December 19, 2016
    Publication date: June 22, 2017
    Inventors: Abraham Joy, Steven Mankoci, Elaheh A. Chamsaz