Patents by Inventor Vardhan Bajpai

Vardhan Bajpai 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: 11040297
    Abstract: There is disclosed a material for separating a liquid from a mixture of at least two liquids, for example, for separating water from fuel. In one embodiment, the material comprises a fibrous substrate and carbon nanotubes, both of which have at least one functional group attached thereto. There is also disclosed a method for separating one liquid from another liquid using the disclosed material. In one embodiment, the method comprises flowing a mixture of liquids through the disclosed material, and either coalescing or separating at least one liquid by use of the carbon nanotubes.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: June 22, 2021
    Assignee: Multipure International
    Inventors: Vardhan Bajpai, Christopher H. Cooper
  • Publication number: 20190275447
    Abstract: There is disclosed a material for separating a liquid from a mixture of at least two liquids, for example, for separating water from fuel. In one embodiment, the material comprises a fibrous substrate and carbon nanotubes, both of which have at least one functional group attached thereto. There is also disclosed a method for separating one liquid from another liquid using the disclosed material. In one embodiment, the method comprises flowing a mixture of liquids through the disclosed material, and either coalescing or separating at least one liquid by use of the carbon nanotubes.
    Type: Application
    Filed: May 16, 2019
    Publication date: September 12, 2019
    Inventors: Vardhan Bajpai, Christopher H. Cooper
  • Publication number: 20180071656
    Abstract: There is disclosed a material for separating a liquid from a mixture of at least two liquids, for example, for separating water from fuel. In one embodiment, the material comprises a fibrous substrate and carbon nanotubes, both of which have at least one functional group attached thereto. There is also disclosed a method for separating one liquid from another liquid using the disclosed material. In one embodiment, the method comprises flowing a mixture of liquids through the disclosed material, and either coalescing or separating at least one liquid by use of the carbon nanotubes.
    Type: Application
    Filed: July 29, 2015
    Publication date: March 15, 2018
    Inventors: Vardhan Bajpai, Christopher H. Cooper
  • Publication number: 20160038864
    Abstract: A composite filter media includes a base sheet incorporating polymer microfibers and nano-fibrillated cellulose in combination with one or more alternative upstream depth filtration layers. Embodiments of the composite filter media employ polymer or fiberglass layers arranged on the upstream face of the base sheet. A lightweight protective spun bond scrim may be applied to the upstream face of the upstream depth filtration material. The depth filtration layer or layers may be laminated to each other and/or the base sheet or co-pleated with the base sheet to form the disclosed composite media. The depth filtration layers are configured to provide a positive density gradient in the direction of fuel flow through the composite media, meaning that the depth filtration media increases in density and decreases in pore size in the direction of fuel flow.
    Type: Application
    Filed: August 6, 2015
    Publication date: February 11, 2016
    Inventors: Farrell Francis Calcaterra, Tom Green, Lei Li, Tetyana Gilbert, Vardhan Bajpai, Zhiwang Wu, Chad Andrew Taylor
  • Publication number: 20150376028
    Abstract: Disclosed herein are devices and methods for the purification of biologically contaminated water to make potable. In one embodiment, there is disclosed a low-pressure device comprising a housing having at least one inlet for receiving biologically contaminated water, and at least one outlet for removing purified water, wherein the housing contains a filter held in place by a seal sufficient to keep the biologically contaminated water separate from the purified water. Because of the novel permeability and purification properties of the disclosed carbon containing filter, the disclosed filter can remove virus, bacteria, cyst or any combination thereof, at water approaching velocity up to 5 cm/min. In various embodiments, the filter can have a flat planar design to be used in a flat pack application, or a more traditional tubular shape.
    Type: Application
    Filed: September 3, 2015
    Publication date: December 31, 2015
    Inventors: Christopher H. Cooper, Daniel Iliescu, Mikhail Starostin, Vardhan Bajpai, Beatrice Iliescu
  • Patent number: 9126128
    Abstract: There is disclosed a material for separating a liquid from a mixture of at least two liquids, for example, for separating water from fuel. In one embodiment, the material comprises a fibrous substrate and carbon nanotubes, both of which have at least one functional group attached thereto. There is also disclosed a method for separating one liquid from another liquid using the disclosed material. In one embodiment, the method comprises flowing a mixture of liquids through the disclosed material, and either coalescing or separating at least one liquid by use of the carbon nanotubes.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: September 8, 2015
    Assignee: Seldon Technologies, Inc.
    Inventors: Vardhan Bajpai, Christopher H. Cooper
  • Publication number: 20130233595
    Abstract: Disclosed herein is an electrode comprising, a capacitive carbon material located on at least one surface of a thin. The capacitive carbon material typically comprises functionalized ultra-long carbon nanotubes and optionally another carbon allotrope or mixture of carbon allotropes with sufficiently high active surface area. . Methods of forming such electrodes are also disclosed.
    Type: Application
    Filed: February 22, 2013
    Publication date: September 12, 2013
    Applicant: SELDON TECHNOLOGIES, INC.
    Inventors: Christopher H. COOPER, Daniel Iliescu, Vardhan Bajpai
  • Publication number: 20100116751
    Abstract: There is disclosed a material for separating a liquid from a mixture of at least two liquids, for example, for separating water from fuel. In one embodiment, the material comprises a fibrous substrate and carbon nanotubes, both of which have at least one functional group attached thereto. There is also disclosed a method for separating one liquid from another liquid using the disclosed material. In one embodiment, the method comprises flowing a mixture of liquids through the disclosed material, and either coalescing or separating at least one liquid by use of the carbon nanotubes.
    Type: Application
    Filed: November 10, 2009
    Publication date: May 13, 2010
    Inventors: Vardhan Bajpai, Christopher H. Cooper
  • Publication number: 20090196909
    Abstract: There is disclosed an article and method of making an article for removing at least one contaminant from a solid surface. In one embodiment, the article comprises carbon nanotubes attached to a support media, such as a nonwoven mixture of PET and cotton. There is also disclosed a method of removing at least one contaminant from a solid surface, such as areas where microbial, particle, or static contamination is undesirable, including hospitals, clean rooms, kitchens, baths, or human hands.
    Type: Application
    Filed: October 22, 2008
    Publication date: August 6, 2009
    Inventors: Christopher H. Cooper, Whitmore B. Kelley, JR., Vardhan Bajpai, Daniel Iliescu, Thomas H. Treutler, Andrei Burnin, Hai-Feng Zhang