Patents by Inventor Bradley P. DUNCAN

Bradley P. DUNCAN 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: 11845219
    Abstract: A 3-D printed device comprising one or more structures, the structures comprising a plurality of magnetically responsive particles and one or more diblock or triblock copolymers; the diblock or triblock copolymers having an A-B, A-B-A, or A-B-C block-type structure in which the A-blocks and C-blocks are an aromatic-based polymer or an acrylate-based polymer and the B-blocks are an aliphatic-based polymer. These 3-D printed devices may be formed using a method that comprises providing a magnetic ink composition; applying the magnetic ink composition to a substrate in a 3-D solvent cast printing process to form one or more structures; and drying the one or more structures formed from the magnetic ink composition. The dried structures can exhibit one or more regions of magnetic permeability greater than 1.3×10?6 H/m.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: December 19, 2023
    Assignees: Massachusetts Institute of Technology, President and Fellows of Harvard College
    Inventors: Theodore H. Fedynyshyn, Jennifer A. Lewis, Bradley P. Duncan
  • Patent number: 11499234
    Abstract: In some embodiments, a method of forming a structure includes: forming a liquid oxide material at a low temperature by dissolving fumed nanoparticles in a liquid hydrate of a silicate or an aluminate; applying the liquid oxide material on a substrate; and at a low temperature, curing the liquid oxide material to evolve gaseous water, leaving structural silicate glass.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: November 15, 2022
    Assignee: Massachusetts Institute of Technology
    Inventors: Melissa A. Smith, Bradley P. Duncan
  • Patent number: 11267981
    Abstract: A 3-D printed device comprising one or more interconnect structures, the interconnect structures comprising a plurality of conductive particles and one or more diblock or triblock copolymers; the diblock or triblock copolymers having an A-B, A-B-A, or A-B-C block-type structure in which the A-blocks and C-blocks are an aromatic-based polymer or an acrylate-based polymer and the B-blocks are an aliphatic-based polymer. These 3-D printed devices may be formed using a method that comprises providing a conductive ink composition; applying the conductive ink composition to a substrate in a 3-D solvent cast printing process to form one or more interconnect structures; and drying the one or more interconnect structures formed from the conductive ink composition. The dried interconnect structures exhibit a conductivity equal to or greater than 1×105 S/m without having to be subjected to any post-processing sintering treatment.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: March 8, 2022
    Assignees: Massachusetts Institute of Technology, President and Fellows of Harvard College
    Inventors: Bradley P. Duncan, Maxwell E. Plaut, Theodore H. Fedynyshyn, Jennifer A. Lewis
  • Publication number: 20200353682
    Abstract: A 3-D printed device comprising one or more structures, the structures comprising a plurality of magnetically responsive particles and one or more diblock or triblock copolymers; the diblock or triblock copolymers having an A-B, A-B-A, or A-B-C block-type structure in which the A-blocks and C-blocks are an aromatic-based polymer or an acrylate-based polymer and the B-blocks are an aliphatic-based polymer. These 3-D printed devices may be formed using a method that comprises providing a magnetic ink composition; applying the magnetic ink composition to a substrate in a 3-D solvent cast printing process to form one or more structures; and drying the one or more structures formed from the magnetic ink composition. The dried structures can exhibit one or more regions of magnetic permeability greater than 1.3×10?6 H/m.
    Type: Application
    Filed: May 1, 2020
    Publication date: November 12, 2020
    Inventors: Theodore H. Fedynyshyn, Jennifer A. Lewis, Bradley P. Duncan
  • Publication number: 20200291530
    Abstract: In some embodiments, a method of forming a structure includes: forming a liquid oxide material at a low temperature by dissolving fumed nanoparticles in a liquid hydrate of a silicate or an aluminate; applying the liquid oxide material on a substrate; and at a low temperature, curing the liquid oxide material to evolve gaseous water, leaving structural silicate glass.
    Type: Application
    Filed: March 11, 2020
    Publication date: September 17, 2020
    Inventors: Melissa A. Smith, Bradley P. Duncan
  • Publication number: 20190300741
    Abstract: A 3-D printed device comprising one or more interconnect structures, the interconnect structures comprising a plurality of conductive particles and one or more diblock or triblock copolymers; the diblock or triblock copolymers having an A-B, A-B-A, or A-B-C block-type structure in which the A-blocks and C-blocks are an aromatic-based polymer or an acrylate-based polymer and the B-blocks are an aliphatic-based polymer. These 3-D printed devices may be formed using a method that comprises providing a conductive ink composition; applying the conductive ink composition to a substrate in a 3-D solvent cast printing process to form one or more interconnect structures; and drying the one or more interconnect structures formed from the conductive ink composition. The dried interconnect structures exhibit a conductivity equal to or greater than 1×105 S/m without having to be subjected to any post-processing sintering treatment.
    Type: Application
    Filed: March 29, 2019
    Publication date: October 3, 2019
    Inventors: Bradley P. DUNCAN, Maxwell E. PLAUT, Theodore H. FEDYNYSHYN, Jennifer A. LEWIS
  • Patent number: 9849435
    Abstract: The present invention relates to microcapsules with a core-shell or matrix morphology stabilized by cross-linked nanoparticles. A process for the preparation of said microcapsules comprising selecting internal crosslinking of a Pickering emulsion is also an object of the invention. Perfumed consumer products, in particular fine fragrance, home and personal care products are also part of the invention.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: December 26, 2017
    Assignee: Firmenich SA
    Inventors: Vincent M. Rotello, Bradley P. Duncan, Valery Normand, Huda Jerri, Lahoussine Ouali, Daniel Benczedi
  • Publication number: 20160317993
    Abstract: The present invention relates to microcapsules with a core-shell or matrix morphology stabilized by cross-linked nanoparticles. A process for the preparation of said microcapsules comprising selecting internal crosslinking of a Pickering emulsion is also an object of the invention. Perfumed consumer products, in particular fine fragrance, home and personal care products are also part of the invention.
    Type: Application
    Filed: December 18, 2014
    Publication date: November 3, 2016
    Applicants: Firmenich SA, UNIVERSITY OF MASSACHUSSETTS
    Inventors: Vincent M. ROTELLO, Bradley P. DUNCAN, Valery NORMAND, Huda JERRI, Lahoussine OUALI, Daniel BENCZEDI