Patents by Inventor Michael D. Barnes

Michael D. Barnes 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: 11921020
    Abstract: Methods for isolating viable cancer cells from a sample that comprises a mixture of cancerous cells and normal (non-cancerous) cells are provided. In the methods, a fluid preparation comprising a mixture of cancerous and normal cells is repeatedly exposed to fluid shear stresses, whereby the repeated exposure to the fluid shear stresses preferentially imparts fluid shear stress-resistance to the cancerous cells.
    Type: Grant
    Filed: July 27, 2020
    Date of Patent: March 5, 2024
    Assignee: UNIVERSITY OF IOWA RESEARCH FOUNDATION
    Inventors: Michael D. Henry, J. Matthew Barnes
  • Publication number: 20040145085
    Abstract: The present invention comprises the formation of photonic polymer-blend structures having tunable optical and mechanical properties. The photonic polymer-blend structures comprise monomer units of spherical microparticles of a polymer-blend material wherein the spherical microparticles have surfaces partially merged with one another in a robust inter-particle bond having a tunable inter-particle separation or bond length sequentially attached in a desired and programmable architecture. The photonic polymer-blend structures of the present invention can be linked by several hundred individual particles sequentially linked to form complex three-dimensional structures or highly ordered two-dimensional arrays of 3D columns with 2D spacing.
    Type: Application
    Filed: January 16, 2004
    Publication date: July 29, 2004
    Inventor: Michael D. Barnes
  • Patent number: 6756117
    Abstract: The present invention comprises the formation of photonic polymer-blend structures having tunable optical and mechanical properties. The photonic polymer-blend structures comprise monomer units of spherical microparticles of a polymer-blend material wherein the spherical microparticles have surfaces partially merged with one another in a robust inter-particle bond having a tunable inter-particle separation or bond length sequentially attached in a desired and programmable architecture. The photonic polymer-blend structures of the present invention can be linked by several hundred individual particles sequentially linked to form complex three-dimensional structures or highly ordered two-dimensional arrays of 3D columns with 2D spacing.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: June 29, 2004
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Michael D. Barnes
  • Publication number: 20040121157
    Abstract: The present invention comprises the formation of photonic polymer-blend structures having tunable optical and mechanical properties. The photonic polymer-blend structures comprise monomer units of spherical microparticles of a polymer-blend material wherein the spherical microparticles have surfaces partially merged with one another in a robust inter-particle bond having a tunable inter-particle separation or bond length sequentially attached in a desired and programmable architecture. The photonic polymer-blend structures of the present invention can be linked by several hundred individual particles sequentially linked to form complex three-dimensional structures or highly ordered two-dimensional arrays of 3D columns with 2D spacing.
    Type: Application
    Filed: December 20, 2002
    Publication date: June 24, 2004
    Inventor: Michael D. Barnes
  • Patent number: 6461546
    Abstract: This invention describes a method of producing polymer powders from solution in a compatible solvent using a new device referred to as a microdroplets on demand generator (MODG). The embodiment of this invention is the MODG apparatus and its relevance as a method to extensive application in materials science and technology. Proof of concept is demonstrated using poly(ethylene) glycol polymer microparticles generated with the MODG and captured in a microparticle levitation device.
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: October 8, 2002
    Assignees: UT-Battelle, Iowa State University Research Foundation, Inc.
    Inventors: Donald W. Noid, Joshua U. Otaigbe, Michael D. Barnes, Bobby G. Sumpter, Chung-Yi Kung
  • Patent number: 5254266
    Abstract: A self-contained oil spill cleanup craft and method which operates well in both rough and calm seas, is rapidly deployed, which provides high flow rate continuous separation and processing of recovered oil and water mixtures, and outputs water which is substantially free of oil and oil which is substantially free of water and other contaminants and, as such, refinery ready without further processing. The craft of the present invention can be used, for example, to clean up light and medium weight crude oil, lubricating oil, or diesel fuel that is floating on the surfaces of either fresh or salt water.
    Type: Grant
    Filed: March 6, 1992
    Date of Patent: October 19, 1993
    Assignee: Aquatron, Inc.
    Inventors: Michael D. Barnes, Craig R. Fischer