Patents by Inventor Vijay T. John

Vijay T. John 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: 20180344905
    Abstract: The disclosure provides drug delivery devices and methods of making and using the drug delivery devices. The devices include single and multi-layer polymer films made by a breath figure technique having therapeutic agents associated therewith. For example, the devices may be a dual layer polymer film wherein the first layer includes a therapeutic agent incorporated into it by spin coating the first agent with a polymer solution and the second agent is incorporated into the second layer by loading the agent into pores of the second layer after it is spin coated onto the first layer. In some cases one layer provides a burst release and the second layer provides a slow release drug delivery profile. The devices may take on the form of a surgical mesh with a slow release therapeutic drug.
    Type: Application
    Filed: August 11, 2018
    Publication date: December 6, 2018
    Applicant: The Administrators of the Tulane Educational Fund
    Inventors: Diane A. BLAKE, Vijay T. John, Ramesh Ayyala, Thiruselvam Ponnusamy
  • Patent number: 10058640
    Abstract: The disclosure provides drug delivery devices and methods of making and using the drug delivery devices. The devices include single and multi-layer polymer films made by a breath figure technique having therapeutic agents associated therewith. For example, the devices may be a dual layer polymer film wherein the first layer includes a therapeutic agent incorporated into it by spin coating the first agent with a polymer solution and the second agent is incorporated into the second layer by loading the agent into pores of the second layer after it is spin coated onto the first layer. In some cases one layer provides a burst release and the second layer provides a slow release drug delivery profile. The devices may take on the form of a surgical mesh with a slow release therapeutic drug.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: August 28, 2018
    Assignee: THE ADMINISTRATORS OF THE THLANE EDUCATIONAL FUND
    Inventors: Diane A. Blake, Vijay T. John, Ramesh Ayyala, Krzysztof Reiss
  • Patent number: 9233862
    Abstract: A method for cleaning an oil spill in a marine environment includes forming a particle-stabilized emulsion containing seawater, carbon black and at least one oil spill component and allowing the at least one oil spill component to degrade, thereby removing said component from the marine environment. Carbon black can be added to an oil-seawater mixture to form a stabilized emulsion containing at least one oil spill component and the oil spill component allowed to degrade, thereby removing the at least one oil spill component from the oil spill. Also disclosed is an emulsion that includes one or more oil spill components, seawater and carbon black particles.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: January 12, 2016
    Assignee: Cabot Corporation
    Inventors: Arijit Bose, Vijay T. John, Ani Tzankova Nikova
  • Publication number: 20150209487
    Abstract: The disclosure provides drug delivery devices and methods of making and using the drug delivery devices. The devices include single and multi-layer polymer films made by a breath figure technique having therapeutic agents associated therewith. For example, the devices may be a dual layer polymer film wherein the first layer includes a therapeutic agent incorporated into it by spin coating the first agent with a polymer solution and the second agent is incorporated into the second layer by loading the agent into pores of the second layer after it is spin coated onto the first layer. In some cases one layer provides a burst release and the second layer provides a slow release drug delivery profile. The devices may take on the form of a surgical mesh with a slow release therapeutic drug.
    Type: Application
    Filed: February 27, 2015
    Publication date: July 30, 2015
    Applicant: THE ADMINISTRATORS OF THE TULANE EDUCATIONAL FUND
    Inventors: Diane A. BLAKE, Vijay T. John, Ramesh Ayyala, Krzysztof Reiss
  • Publication number: 20140166575
    Abstract: A method for cleaning an oil spill in a marine environment includes forming a particle-stabilized emulsion containing seawater, carbon black and at least one oil spill component and allowing the at least one oil spill component to degrade, thereby removing said component from the marine environment. Carbon black can be added to an oil-seawater mixture to form a stabilized emulsion containing at least one oil spill component and the oil spill component allowed to degrade, thereby removing the at least one oil spill component from the oil spill. Also disclosed is an emulsion that includes one or more oil spill components, seawater and carbon black particles.
    Type: Application
    Filed: July 10, 2012
    Publication date: June 19, 2014
    Applicants: THE ADMINISTRATORS OF THE TULANE EDUCATIONAL FUND, CABOT CORPORATION
    Inventors: Arijit Bose, Vijay T. John, Ani Tzankova Nikova
  • Patent number: 8003567
    Abstract: The present teachings are directed toward hexagonally patterned porous titania synthesized from a titanium isopropoxide precursor using a viscous template of surface-active agents separating nanoscopic bicontinuous channels of water and isooctane. Subsequent catalyst metal salt reduction in the aqueous nanochannels deposits well-separated catalyst metal nanoparticles on the pore surfaces. These nanocomposites exhibit significantly higher carbon monoxide oxidation efficiency than that obtained with known supports with higher specific surface area; efficiency is believed to be due to decreased mass transfer resistance provided the presently disclosed support material.
    Type: Grant
    Filed: August 17, 2009
    Date of Patent: August 23, 2011
    Assignees: Honda Motor Co., Ltd., The Administrators of the Tulane Educational Fund, Rhode Island Board of Governors for Higher Education, Rensselaer Polytechnic Institute
    Inventors: Christopher Brooks, Arijit Bose, Jayashri Sarkar, Ganapathiraman Ramanath, Vijay T. John
  • Publication number: 20110039692
    Abstract: The present teachings are directed toward hexagonally patterned porous titania synthesized from a titanium isopropoxide precursor using a viscous template of surface-active agents separating nanoscopic bicontinuous channels of water and isooctane. Subsequent catalyst metal salt reduction in the aqueous nanochannels deposits well-separated catalyst metal nanoparticles on the pore surfaces. These nanocomposites exhibit significantly higher carbon monoxide oxidation efficiency than that obtained with known supports with higher specific surface area; efficiency is believed to be due to decreased mass transfer resistance provided the presently disclosed support material.
    Type: Application
    Filed: August 17, 2009
    Publication date: February 17, 2011
    Inventors: Christopher Brooks, Arijit Bose, Jayashri Sarkar, Ganapathiraman Ramanath, Vijay T. John
  • Patent number: 6022500
    Abstract: A process is described for the enzyme catalyzed synthesis of polymeric microspheres from monomers such as ethylphenol, naphthols and hydroxypyrenes in reverse micelles in the presence of a detergent. Polymeric microspheres synthesized are porous with nonuniform densities. Polymers prepared from naphthols and hydroxypyrenes are fluorescent with electroluminescent properties. A number of materials such as enzymes, drugs and inorganic materials such as iron oxide and cadmium sulfide are encapsulated in the hollow polymeric microspheres synthesized. These encapsulations are carried out during or after the syntheses of the polymeric microspheres. Functional properties of the encapsulated materials such as enzyme, magnetic and nonlinear optical properties are demonstrated in the polymeric composites.
    Type: Grant
    Filed: September 25, 1996
    Date of Patent: February 8, 2000
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Vijay T John, Gary L McPherson, Joseph A Akkara, David L Kaplan
  • Patent number: 5324436
    Abstract: A process is disclosed for regulating the size and composition of the internal reaction medium of a membrane mimetic system using clathrate hydrate formation under gas pressure conditions. When the disclosed membrane mimetic system is in contact with a clathrate forming gas, some of the water in the internal reaction medium is converted to crystalline hydrate form, which physically and chemically isolates the water from the remainder of the internal reaction medium. In one preferred process embodiment, the membrane mimetic system is used for enzymatic polymer synthesis in an organized medium to control the size and morphology of the polymer particles formed.
    Type: Grant
    Filed: March 12, 1993
    Date of Patent: June 28, 1994
    Assignee: The Administrators of the Tulane Educational Fund
    Inventors: Vijay T. John, Joseph A. Akkara, David L. Kaplan