Patents by Inventor Michael T. Lis

Michael T. Lis 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).

  • Block copolymer ink formulation for 3D printing and method of making a 3D printed radiofrequency (RF) device
    Patent number: 10851251
    Abstract: An ink formulation for 3D printing comprises a triblock copolymer in a solvent, where the triblock copolymer includes end blocks comprising an aromatic or acrylate polymer and a midblock between the end blocks comprising an aliphatic polymer. The ink formulation exhibits a shear thinning threshold of about 0.02 rad/sec or less. A method of making a 3D printed radiofrequency (RF) device comprises extruding an ink formulation from a deposition nozzle moving relative to a substrate, where the ink formulation comprises a triblock copolymer in a solvent and the triblock copolymer includes end blocks comprising an aromatic or acrylate polymer and a midblock between the end blocks comprising an aliphatic polymer. One or more continuous filaments comprising the ink formulation are deposited in a predetermined pattern on the substrate, and the ink formulation is treated to remove or cure the solvent, thereby forming a printed RF device.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: December 1, 2020
    Assignees: Massachusetts Institute of Technology, President and Fellows of Harvard College
    Inventors: Theodore H. Fedynyshyn, Michael T. Lis, Jennifer Ann Lewis
  • BLOCK COPOLYMER INK FORMULATION FOR 3D PRINTING AND METHOD OF MAKING A 3D PRINTED RADIOFREQUENCY (RF) DEVICE
    Publication number: 20180320008
    Abstract: An ink formulation for 3D printing comprises a triblock copolymer in a solvent, where the triblock copolymer includes end blocks comprising an aromatic or acrylate polymer and a midblock between the end blocks comprising an aliphatic polymer. The ink formulation exhibits a shear thinning threshold of about 0.02 rad/sec or less. A method of making a 3D printed radiofrequency (RF) device comprises extruding an ink formulation from a deposition nozzle moving relative to a substrate, where the ink formulation comprises a triblock copolymer in a solvent and the triblock copolymer includes end blocks comprising an aromatic or acrylate polymer and a midblock between the end blocks comprising an aliphatic polymer. One or more continuous filaments comprising the ink formulation are deposited in a predetermined pattern on the substrate, and the ink formulation is treated to remove or cure the solvent, thereby forming a printed RF device.
    Type: Application
    Filed: November 1, 2016
    Publication date: November 8, 2018
    Inventors: Theodore H. Fedynyshyn, Michael T. Lis, Jennifer Ann Lewis