Patents by Inventor David M. Murdoch

David M. Murdoch 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).

  • Polyether polymerization process
    Patent number: 12152104
    Abstract: Polyethers are prepared by polymerizing an alkylene oxide in the presence of a double metal cyanide catalyst complex and certain M5 metal or semi-metal compounds. The double metal cyanide catalyst complex contains 0.5 to 2 weight percent potassium. The ability of this catalyst system to tolerate such high amounts of potassium permits the catalyst preparation procedure to be simplified and less expensive.
    Type: Grant
    Filed: February 17, 2020
    Date of Patent: November 26, 2024
    Assignee: Dow Global Technologies LLC
    Inventors: Haifeng Shi, Mrunmayi Kumbhalkar, Jason S. Fisk, Curtis M. Whaley, David A. Babb, Brian J. Murdoch
  • Platforms for single cell analysis
    Patent number: 11420204
    Abstract: Provided herein are devices, systems, and methods for analysis of objects, such as cells. The devices, systems, and methods organize a plurality of objects in a plurality of partitions by trapping an object in a trap and transferring the object to an adjacent partition. The devices, systems, and methods provide for parallel analysis of a plurality of objects.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: August 23, 2022
    Assignee: Duke University
    Inventors: Benjamin B. Yellen, Roozbeh Abedini-Nassab, Korine A. Ohiri, David M. Murdoch, Kris Wood
  • PLATFORMS FOR SINGLE CELL ANALYSIS
    Publication number: 20200269246
    Abstract: Provided herein are devices, systems, and methods for analysis of objects, such as cells. The devices, systems, and methods organize a plurality of objects in a plurality of partitions by trapping an object in a trap and transferring the object to an adjacent partition. The devices, systems, and methods provide for parallel analysis of a plurality of objects.
    Type: Application
    Filed: January 12, 2017
    Publication date: August 27, 2020
    Inventors: Benjamin B. Yellen, Roozbeh Abedini-Nassab, Korine A. Ohiri, David M. Murdoch, Kris Wood
  • MAGNETIC SINGLE CELL ARRAYS FOR PROBING CELL-DRUG AND CELL-CELL COMMUNICATION
    Publication number: 20180257075
    Abstract: The current invention relates to systems for transporting, trapping, and releasing magnetically-labeled bioparticles within microfluidic environments.
    Type: Application
    Filed: August 10, 2016
    Publication date: September 13, 2018
    Inventors: Benjamin B. Yellen, David M. Murdoch, Roozbeh Abedini-Nassab, Kris C. Wood
  • DEVICES, SYSTEMS, AND METHODS FOR ACOUSTICALLY-ENHANCED MAGNETOPHORESIS
    Publication number: 20160016180
    Abstract: The present disclosure provides systems and devices for the sorting of objects using acoustic waves and magnetic forces as well as methods of using the systems and devices.
    Type: Application
    Filed: March 8, 2014
    Publication date: January 21, 2016
    Inventors: Gabriel P Lopez, Benjamin B Yellen, Lu Gao, David M. Murdoch