Patents by Inventor Rajeev Dhiman

Rajeev Dhiman 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: 20220126001
    Abstract: Described herein are medical devices and medical implements with high lubricity to flesh (or biological fluid) and/or inhibited nucleation on its surface. The device has a surface comprising an impregnating liquid and a plurality of micro-scale and/or nano-scale solid features spaced sufficiently close to stably contain the impregnating liquid therebetween. The impregnating liquid fills spaces between said solid features, the surface stably contains the impregnating liquid between the solid features, and the impregnating liquid is substantially held in place between the plurality of solid features regardless of orientation of the surface.
    Type: Application
    Filed: June 9, 2021
    Publication date: April 28, 2022
    Applicant: Massachusetts Institute of Technology
    Inventors: J. David Smith, Rajeev Dhiman, Adam T. Paxson, Christopher J. Love, Brian R. Solomon, Kripa K. Varanasi
  • Publication number: 20220024682
    Abstract: In certain embodiments, the invention relates to an article having a liquid-impregnated surface. The surface includes a matrix of solid features (e.g., non-toxic and/or edible features) spaced sufficiently close to stably contain a liquid therebetween or therewithin, wherein the liquid is non-toxic and/or edible. The article may contain, for example, a food or other consumer product, such as ketchup, mustard, or mayonnaise.
    Type: Application
    Filed: March 5, 2021
    Publication date: January 27, 2022
    Applicant: Massachusetts Institute of Technology
    Inventors: Jonathan David Smith, Rajeev Dhiman, Adam T. Paxson, Christopher J. Love, Brian R. Solomon, Kripa K. Varanasi
  • Patent number: 11058803
    Abstract: Described herein are medical devices and medical implements with high lubricity to flesh (or biological fluid) and/or inhibited nucleation on its surface. The device has a surface comprising an impregnating liquid and a plurality of micro-scale and/or nano-scale solid features spaced sufficiently close to stably contain the impregnating liquid therebetween. The impregnating liquid fills spaces between said solid features, the surface stably contains the impregnating liquid between the solid features, and the impregnating liquid is substantially held in place between the plurality of solid features regardless of orientation of the surface.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: July 13, 2021
    Assignee: Massachusetts Institute of Technology
    Inventors: J. David Smith, Rajeev Dhiman, Adam T. Paxson, Christopher J. Love, Brian R. Solomon, Kripa K. Varanasi
  • Patent number: 10994035
    Abstract: A system includes multiple devices configured to emit and detect germicidal radiation. Each of the multiple devices operates in emitting mode when connected to a drive source in a forward bias configuration and operates in detecting mode when disconnected from the drive source or when connected to the drive source in a reverse bias configuration. Cycling circuitry generates a sequence of control signals that control switching circuitry to change the connections of the devices to the drive source in a cycle in which one or more of the multiple devices are switched to detecting mode and senses radiation emitted by one or more of the multiple devices simultaneously operating in emitting mode. Each device operating in detecting mode generates a signal in response to the sensed radiation. Detection circuitry detects signals of the devices operating in detecting mode and generates a detection output in response to the detected signals.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: May 4, 2021
    Assignee: 3M Innovative Properties Company
    Inventors: Rajeev Dhiman, Michael E. Griffin, Robert E. Astle, Michael N. Cormier
  • Patent number: 10968035
    Abstract: In certain embodiments, the invention relates to an article having a liquid-impregnated surface. The surface includes a matrix of solid features (e.g., non-toxic and/or edible features) spaced sufficiently close to stably contain a liquid therebetween or therewithin, wherein the liquid is non-toxic and/or edible. The article may contain, for example, a food or other consumer product, such as ketchup, mustard, or mayonnaise.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: April 6, 2021
    Assignee: Massachusetts Institute of Technology
    Inventors: Jonathan David Smith, Rajeev Dhiman, Adam T. Paxson, Christopher J. Love, Brian R. Solomon, Kripa K. Varanasi
  • Patent number: 10961132
    Abstract: A UV treatment cartridge having an exterior housing and a UV treatment module located inside of the exterior housing. The UV treatment module having a UVLED array for UV treatment of a fluid passing through the UV treatment module. An internal annular space between the exterior sidewall and the module sidewall forms an entry flow path to the UV treatment module thereby substantially balancing fluid pressure acting on the inside of the module sidewall and acting on the outside of the module sidewall.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: March 30, 2021
    Assignee: 3M Innovative Properties Company
    Inventors: Rajeev Dhiman, Justin M. Mazzoni, Michael E. Griffin, Hemang Patel
  • Publication number: 20200398289
    Abstract: Presented herein are articles and methods relating to manufactured superhydrophobic, superoleophobic, and/or supermetallophobic surfaces with macro-scale features (macro features) configured to induce controlled asymmetry in a liquid film produced by impinging phase (e.g., impinging droplet(s)) onto the surface, thereby further reducing the contact time between an impinging liquid and the surface.
    Type: Application
    Filed: February 7, 2020
    Publication date: December 24, 2020
    Applicant: Massachusetts Institute of Technology
    Inventors: Rajeev Dhiman, James C. Bird, Hyukmin Kwon, Kripa K. Varanasi
  • Publication number: 20200144676
    Abstract: A cell of an energy storage device with at least one electrode that is tabless, and methods of forming thereof, are described. The cell includes a first substrate having a first coating disposed thereon, wherein a second portion of the first substrate at a proximal end along the width of the first substrate comprises a conductive material. An inner separator is disposed over the first substrate. A second substrate is disposed over the inner separator. The second substrate has a second coating disposed thereon. The first substrate, the inner separator, and the second substrate in a successive manner, the first substrate, the inner separator, and the second substrate are rolled about a central axis.
    Type: Application
    Filed: November 4, 2019
    Publication date: May 7, 2020
    Inventors: Kunio Tsuruta, Mikel Ehrlich Dermer, Rajeev Dhiman
  • Patent number: 10603613
    Abstract: The descriptions relate to preventing assembly of a fluid filter apparatus unless a filter cartridge is installed, and preventing assembly of a fluid filter apparatus if the incorrect filter cartridge is installed. A mechanism includes cooperation of a movable member and a structure that can move the movable member to ensure that a fluid filter apparatus cannot be completely assembled, for example connecting its filter head to its shell, when there is no cartridge installed inside the shell or when there is an attempt to install an incorrect cartridge. This can protect from an inadvertent or intentional failure to install a cartridge (or correct cartridge) in the fluid filter apparatus.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: March 31, 2020
    Assignee: Cummins Filtration IP, Inc.
    Inventor: Rajeev Dhiman
  • Publication number: 20190224695
    Abstract: This invention relates generally to an article that includes a non-wetting surface having a dynamic contact angle of at least about 90°. The surface is patterned with macro-scale features configured to induce controlled asymmetry in a liquid film produced by impingement of a droplet onto the surface, thereby reducing time of contact between the droplet and the surface.
    Type: Application
    Filed: August 16, 2018
    Publication date: July 25, 2019
    Applicant: Massachusetts Institute of Technology
    Inventors: Rajeev Dhiman, James C. Bird, Hyukmin Kwon, Kripa K. Varanasi
  • Publication number: 20190225509
    Abstract: A UV treatment cartridge having an exterior housing and a UV treatment module located inside of the exterior housing. The UV treatment module having a UVLED array for UV treatment of a fluid passing through the UV treatment module. An internal annular space between the exterior sidewall and the module sidewall forms an entry flow path to the UV treatment module thereby substantially balancing fluid pressure acting on the inside of the module sidewall and acting on the outside of the module sidewall.
    Type: Application
    Filed: August 28, 2017
    Publication date: July 25, 2019
    Inventors: Rajeev Dhiman, Justin M. Mazzoni, Michael E. Griffin, Hemang Patel
  • Patent number: 10352574
    Abstract: A falling film of liquid desiccant in direct contact with a gas stream is formed, which allows water vapor transfer between a gas stream (air) and the desiccant, enabling dehumidification and/or humidification of air. Thin films are created in one way by a wettable layer that is in contact with a support structure and in another way directly on the support structure. The devices can be installed on an absorber (conditioner) side or a desorber (regenerator) side or both of air conditioning systems; for example, liquid desiccant air conditioning (LDAC) applications.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: July 16, 2019
    Assignee: 3M Innovative Properties Company
    Inventors: Thomas J. Hamlin, Rajeev Dhiman, Laurence W. Bassett
  • Publication number: 20190118232
    Abstract: Presented herein are articles and methods relating to manufactured superhydrophobic, superoleophobic, and/or supermetallophobic surfaces with macro-scale features (macro features) configured to induce controlled asymmetry in a liquid film produced by impinging phase (e.g., impinging droplet(s)) onto the surface, thereby further reducing the contact time between an impinging liquid and the surface.
    Type: Application
    Filed: May 15, 2018
    Publication date: April 25, 2019
    Applicant: Massachusetts Institute of Technology
    Inventors: Rajeev Dhiman, James C. Bird, Hyukmin Kwon, Kripa K. Varanasi
  • Publication number: 20180369435
    Abstract: A system includes multiple devices configured to emit and detect germicidal radiation. Each of the multiple devices operates in emitting mode when connected to a drive source in a forward bias configuration and operates in detecting mode when disconnected from the drive source or when connected to the drive source in a reverse bias configuration. Cycling circuitry generates a sequence of control signals that control switching circuitry to change the connections of the devices to the drive source in a cycle in which one or more of the multiple devices are switched to detecting mode and senses radiation emitted by one or more of the multiple devices simultaneously operating in emitting mode. Each device operating in detecting mode generates a signal in response to the sensed radiation. Detection circuitry detects signals of the devices operating in detecting mode and generates a detection output in response to the detected signals.
    Type: Application
    Filed: December 19, 2016
    Publication date: December 27, 2018
    Inventors: Rajeev Dhiman, Michael E. Griffin, Robert E. Astle, Michael N. Cormier
  • Publication number: 20180290084
    Abstract: The descriptions relate to preventing assembly of a fluid filter apparatus unless a filter cartridge is installed, and preventing assembly of a fluid filter apparatus if the incorrect filter cartridge is installed. A mechanism includes cooperation of a movable member and a structure that can move the movable member to ensure that a fluid filter apparatus cannot be completely assembled, for example connecting its filter head to its shell, when there is no cartridge installed inside the shell or when there is an attempt to install an incorrect cartridge. This can protect from an inadvertent or intentional failure to install a cartridge (or correct cartridge) in the fluid filter apparatus.
    Type: Application
    Filed: June 7, 2018
    Publication date: October 11, 2018
    Applicant: Cummins Filtration IP, Inc.
    Inventor: Rajeev Dhiman
  • Patent number: 10016711
    Abstract: The descriptions relate to preventing assembly of a fluid filter apparatus unless a filter cartridge is installed, and preventing assembly of a fluid filter apparatus if the incorrect filter cartridge is installed. A mechanism includes cooperation of a movable member and a structure that can move the movable member to ensure that a fluid filter apparatus cannot be completely assembled, for example connecting its filter head to its shell, when there is no cartridge installed inside the shell or when there is an attempt to install an incorrect cartridge. This can protect from an inadvertent or intentional failure to install a cartridge (or correct cartridge) in the fluid filter apparatus.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: July 10, 2018
    Assignee: Cummins Filtration IP, Inc.
    Inventor: Rajeev Dhiman
  • Publication number: 20180180364
    Abstract: The invention is directed to an article with a liquid-impregnated surface, the surface having a matrix of features thereupon, spaced sufficiently close to stably contain a liquid therebetween or therewithin, and preferable also a thin film thereupon. The surface provides the article with advantageous non-wetting properties. Compared to previous non-wetting surfaces, which include a gas (e.g., air) entrained within surface textures, these liquid-impregnated surfaces are resistant to impalement and frost formation, and are therefore more robust.
    Type: Application
    Filed: July 31, 2017
    Publication date: June 28, 2018
    Applicant: Massachusetts Institute of Technology
    Inventors: Rajeev Dhiman, J. David Smith, Kripa K. Varanasi, Ernesto Reza-Garduño Cabello
  • Publication number: 20180050133
    Abstract: Described herein are medical devices and medical implements with high lubricity to flesh (or biological fluid) and/or inhibited nucleation on its surface. The device has a surface comprising an impregnating liquid and a plurality of micro-scale and/or nano-scale solid features spaced sufficiently close to stably contain the impregnating liquid therebetween. The impregnating liquid fills spaces between said solid features, the surface stably contains the impregnating liquid between the solid features, and the impregnating liquid is substantially held in place between the plurality of solid features regardless of orientation of the surface.
    Type: Application
    Filed: March 31, 2017
    Publication date: February 22, 2018
    Applicant: Massachusetts Institute of Technology
    Inventors: J. David Smith, Rajeev Dhiman, Adam T. Paxson, Christopher J. Love, Brian R. Solomon, Kripa K. Varanasi
  • Publication number: 20170370598
    Abstract: A falling film of liquid desiccant in direct contact with a gas stream is formed, which allows water vapor transfer between a gas stream (air) and the desiccant, enabling dehumidification and/or humidification of air. Thin films are created in one way by a wettable layer that is in contact with a support structure and in another way directly on the support structure. The devices can be installed on an absorber (conditioner) side or a desorber (regenerator) side or both of air conditioning systems; for example, liquid desiccant air conditioning (LDAC) applications.
    Type: Application
    Filed: December 10, 2015
    Publication date: December 28, 2017
    Inventors: Thomas J. Hamlin, Rajeev Dhiman, Laurence W. Bassett
  • Patent number: RE48537
    Abstract: Disclosed are filter assembly systems that utilize replaceable filter elements. The filter elements may include a ramp or sleeve for redirecting air intake when the filter elements are installed in the filter assembly systems and air is drawn into the systems. The filter elements and assembly systems may utilize co-acting components that mate with each other to at least one of: a) orient and permit mounting of the filter element in the systems; and b) permit mounting of only an authorized filter element in the systems.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: April 27, 2021
    Assignee: CUMMINS FILTRATION IP INC.
    Inventors: Rajeev Dhiman, Jim Alonzo, Kelly Detra, Barry Mark Verdegan