Patents by Inventor Dhananjay Dendukuri

Dhananjay Dendukuri 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: 20180072987
    Abstract: The method provides a hyaluronic-acid binding based technique to separate functionally competent and mature sperm. The method for extracting viable sperms from a semen sample comprises incubating functionalized HA with functionalized paramagnetic beads to obtain a plurality of HA coated paramagnetic beads. The method further comprises incubating the plurality of HA coated paramagnetic beads with the semen sample to obtain a first population and a second population of sperm. The first population comprises sperm bound to the plurality of HA coated paramagnetic beads and the second population comprises sperms not bound to the plurality of HA coated paramagnetic beads. The method comprises magnetically separating the first population from the second population and separating sperms from the plurality of HA coated paramagnetic beads in the separated first population to obtain the viable sperms.
    Type: Application
    Filed: September 7, 2017
    Publication date: March 15, 2018
    Inventors: Dhananjay Dendukuri, Satish Kalme, Vijetha Nagendra Prakash, Gokul R. Prasath, Vasan Satya Srini
  • Patent number: 9910352
    Abstract: In a method for synthesizing polymeric microstructures, a monomer stream is flowed, at a selected flow rate, through a fluidic channel. At least one shaped pulse of illumination is projected to the monomer stream, defining in the monomer stream a shape of at least one microstructure corresponding to the illumination pulse shape while polymerizing that microstructure shape in the monomer stream by the illumination pulse. An article of manufacture includes a non-spheroidal polymeric microstructure that has a plurality of distinct material regions.
    Type: Grant
    Filed: May 1, 2015
    Date of Patent: March 6, 2018
    Assignee: Massachusetts Institute of Technology
    Inventors: Patrick Seamus Doyle, Daniel Colin Pregibon, Dhananjay Dendukuri
  • Publication number: 20150234270
    Abstract: In a method for synthesizing polymeric microstructures, a monomer stream is flowed, at a selected flow rate, through a fluidic channel. At least one shaped pulse of illumination is projected to the monomer stream, defining in the monomer stream a shape of at least one microstructure corresponding to the illumination pulse shape while polymerizing that microstructure shape in the monomer stream by the illumination pulse. An article of manufacture includes a non-spheroidal polymeric microstructure that has a plurality of distinct material regions.
    Type: Application
    Filed: May 1, 2015
    Publication date: August 20, 2015
    Applicant: Massachusetts Institute of Technology
    Inventors: Patrick Seamus Doyle, Daniel Colin Pregibon, Dhananjay Dendukuri
  • Patent number: 8252517
    Abstract: Stop flow interference lithography system for high throughput synthesis of 3-dimensionally patterned polymer particles. The system includes a microfluidic channel containing a stationary oligomer film and a phase mask located adjacent to the microfluidic channel. A source of collimated light is provided for passing the collimated light through the phase mask and into the microfluidic channel for interaction with the oligomer. The passage of the collimated light through the phase mask generates a 3-dimensional distribution of light intensity to induce crosslinking of the oligomer in high intensity regions thereby forming 3-dimensional structures.
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: August 28, 2012
    Assignee: Massachusetts Institute of Technology
    Inventors: Edwin L. Thomas, Patrick Seamus Doyle, Dhananjay Dendukuri, Ji-Hyun Jang, Chaitanya K. Ullal
  • Publication number: 20100172898
    Abstract: In a method for synthesizing polymeric microstructures, a monomer stream is flowed, at a selected flow rate, through a fluidic channel. At least one shaped pulse of illumination is projected to the monomer stream, defining in the monomer stream a shape of at least one microstructure corresponding to the illumination pulse shape while polymerizing that microstructure shape in the monomer stream by the illumination pulse. An article of manufacture includes a non-spheroidal polymeric microstructure that has a plurality of distinct material regions.
    Type: Application
    Filed: March 15, 2010
    Publication date: July 8, 2010
    Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Patrick S. DOYLE, Daniel C. PREGIBON, Dhananjay DENDUKURI
  • Patent number: 7709544
    Abstract: In a method for synthesizing polymeric microstructures, a monomer stream is flowed, at a selected flow rate, through a fluidic channel. At least one shaped pulse of illumination is projected to the monomer stream, defining in the monomer stream a shape of at least one microstructure corresponding to the illumination pulse shape while polymerizing that microstructure shape in the monomer stream by the illumination pulse.
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: May 4, 2010
    Assignee: Massachusetts Institute of Technology
    Inventors: Patrick S. Doyle, Daniel C. Pregibon, Dhananjay Dendukuri
  • Publication number: 20100099048
    Abstract: Stop flow interference lithography system for high throughput synthesis of 3-dimensionally patterned polymer particles. The system includes a microfluidic channel containing a stationary oligomer film and a phase mask located adjacent to the microfluidic channel. A source of collimated light is provided for passing the collimated light through the phase mask and into the microfluidic channel for interaction with the oligomer. The passage of the collimated light through the phase mask generates a 3-dimensional distribution of light intensity to induce crosslinking of the oligomer in high intensity regions thereby forming 3-dimensional structures.
    Type: Application
    Filed: July 16, 2009
    Publication date: April 22, 2010
    Applicant: Massachusetts Institute of Technology
    Inventors: Edwin L. Thomas, Patrick Seamus Doyle, Dhananjay Dendukuri, Ji-Hyun Jang, Chaitanya K. Ullal
  • Publication number: 20070105972
    Abstract: In a method for synthesizing polymeric microstructures, a monomer stream is flowed, at a selected flow rate, through a fluidic channel. At least one shaped pulse of illumination is projected to the monomer stream, defining in the monomer stream a shape of at least one microstructure corresponding to the illumination pulse shape while polymerizing that microstructure shape in the monomer stream by the illumination pulse.
    Type: Application
    Filed: October 25, 2006
    Publication date: May 10, 2007
    Applicant: Massachusetts Institute of Technology
    Inventors: Patrick Doyle, Daniel Pregibon, Dhananjay Dendukuri