Patents by Inventor Randall M. Hill

Randall M. Hill 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).

  • Microemulsions comprising an alkyl propoxylated sulfate surfactant, and related methods
    Patent number: 11512243
    Abstract: Microemulsions comprising an alkyl propoxylated sulfate surfactant and related methods, including methods of use in the treatment of subterranean formations, such as oil and condensate wells, are provided. In some embodiments, the microemulsions and/or methods of use achieve ultra-low interfacial tensions (i.e. less than or equal to 0.01 mN/m) between a wide variety of crude oils and well treatment fluids at various reservoir conditions. In some embodiments, the microemulsion comprises water, an anionic alkyl propoxylated sulfate surfactant, a solvent (e.g., a terpene solvent), and a co-solvent. In some embodiments, the microemulsion further comprises a second and/or third surfactant (e.g., a nonionic and/or an anionic surfactant).
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: November 29, 2022
    Assignee: Flotek Chemistry, LLC
    Inventors: Siwar Trabelsi, Randall M. Hill
  • Highly reactive multilayer assembled coating of metal oxides on organic and inorganic substrates
    Patent number: 8906814
    Abstract: One aspect of the invention relates to a method of preparing metal oxide coated substrates for various potential applications, and the coated substrate formed thereby.
    Type: Grant
    Filed: August 17, 2009
    Date of Patent: December 9, 2014
    Assignee: Massachusetts Institute of Technology
    Inventors: Jung Ah Lee, Randall M. Hill, Paula T. Hammond, Gregory C. Rutledge, Kevin C. Krogman
  • MULTI-COLOR ELECTRO-OPTIC DISPLAYS
    Publication number: 20140055841
    Abstract: An electro-optic display comprising at least two separate layers of electro-optic material, with one of these layers being capable of displaying at least one optical state which cannot be displayed by the other layer. The display is driven by a single set of electrodes between which both layers are sandwiched, the two layers being controllable at least partially independently of one another. Another form of the invention uses three different types of particles within a single electrophoretic layer, with the three types of particles being arranged to shutter independently of one another.
    Type: Application
    Filed: November 4, 2013
    Publication date: February 27, 2014
    Applicant: E INK CORPORATION
    Inventors: Stephen J. Telfer, Richard J. Paolini, JR., Sunil Krishna Sainis, Randall M. Hill, Isaac W. Moran, Lee Yezek, Alain Bouchard, William Vetterling, George G. Harris, Hywel Morgan, Luke Slominski, Jay William Anseth, Jennifer Quimby, Craig A. Herb
  • Multi-color electro-optic displays
    Patent number: 8576476
    Abstract: An electro-optic display comprising at least two separate layers of electro-optic material, with one of these layers being capable of displaying at least one optical state which cannot be displayed by the other layer. The display is driven by a single set of electrodes between which both layers are sandwiched, the two layers being controllable at least partially independently of one another. Another form of the invention uses three different types of particles within a single electrophoretic layer, with the three types of particles being arranged to shutter independently of one another.
    Type: Grant
    Filed: May 23, 2011
    Date of Patent: November 5, 2013
    Assignee: E Ink Corporation
    Inventors: Stephen J. Telfer, Richard J. Paolini, Jr., Sunil Krishna Sainis, Randall M. Hill, Isaac W. Moran, Lee Yezek, Alain Bouchard, William Vetterling, George G. Harris, Hywel Morgan, Luke Slominski, Jay William Anseth, Jennifer Quimby, Craig A. Herb
  • MULTI-COLOR ELECTRO-OPTIC DISPLAYS
    Publication number: 20120008188
    Abstract: An electro-optic display comprising at least two separate layers of electro-optic material, with one of these layers being capable of displaying at least one optical state which cannot be displayed by the other layer. The display is driven by a single set of electrodes between which both layers are sandwiched, the two layers being controllable at least partially independently of one another. Another form of the invention uses three different types of particles within a single electrophoretic layer, with the three types of particles being arranged to shutter independently of one another.
    Type: Application
    Filed: May 23, 2011
    Publication date: January 12, 2012
    Applicant: E INK CORPORATION
    Inventors: Stephen J. Telfer, Richard J. Paolini, JR., Sunil Krishna Sainis, Randall M. Hill, Isaac W. Moran, Lee Yezek, Alain Bouchard, William Vetterling, George G. Harris, Hywel Morgan, Luke Slominski, Jay William Anseth, Jennifer Quimby, Craig A. Herb
  • Highly Reactive Multilayer Assembled Coating of Metal Oxides on Organic and Inorganic Substrates
    Publication number: 20100130082
    Abstract: One aspect of the invention relates to a method of preparing metal oxide coated substrates for various potential applications, and the coated substrate formed thereby.
    Type: Application
    Filed: August 17, 2009
    Publication date: May 27, 2010
    Applicant: Massachusetts Institute of Technology
    Inventors: Jung Ah Lee, Randall M. Hill, Paula T. Hammond, Gregory C. Rutledge, Kevin C. Krogman