Patents by Inventor Matthew E. Helgeson

Matthew E. Helgeson 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: 11254773
    Abstract: Nanoscale multiple emulsions, nanoparticles resulting therefrom and methods of making and using thereof are described. The nanoscale multiple emulsions are typically double nanoemulsions, such as oil-in-water-in-oil (O1/W/O2) nanoemulsions, in which nanodroplets of the first oil (O1) phase are suspended in the aqueous (W) phase and together are dispersed in the second oil (O2) phase. The double nanoemulsions are stable with high encapsulation efficiency allowing templating to form multiphase nanoparticles. The multiphase nanoparticles include nanodroplets of O1 phase dispersed in a continuous matrix that can be a liquid, a gel, or a solid at room temperature and pressure. Methods of making the double nanoemulsions include high-energy forces and serial nanoemulsifications.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: February 22, 2022
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Matthew E. Helgeson, Samir Mitragotri, Mengwen Zhang, Maksymilian Nowak, Paula Malo de Molina
  • Publication number: 20200385503
    Abstract: Nanoscale multiple emulsions, nanoparticles resulting therefrom and methods of making and using thereof are described. The nanoscale multiple emulsions are typically double nanoemulsions, such as oil-in-water-in-oil (O1/W/O2) nanoemulsions, in which nanodroplets of the first oil (O1) phase are suspended in the aqueous (W) phase and together are dispersed in the second oil (O2) phase. The double nanoemulsions are stable with high encapsulation efficiency allowing templating to form multiphase nanoparticles. The multiphase nanoparticles include nanodroplets of O1 phase dispersed in a continuous matrix that can be a liquid, a gel, or a solid at room temperature and pressure. Methods of making the double nanoemulsions include high-energy forces and serial nanoemulsifications.
    Type: Application
    Filed: May 11, 2018
    Publication date: December 10, 2020
    Inventors: Matthew E. Helgeson, Samir Mitragotri, Mengwen Zhang, Maksymilian Nowak, Paula Malo de Molina
  • Publication number: 20190002787
    Abstract: Disclosed herein are star-shaped macromolecular structures comprising a hyper-branched silicon containing core grafted with a well-defined and controllable number of alkyl (methyl)acrylate (co)polymer arms. The presence of the robust inorganic core provides additional resilience against mechanical degradation and therefore enhanced additive life time. Control over the additive architecture was complemented by tunability of the length of the grafted polymers by making use of controlled radical based polymerization techniques. The performance of these novel inorganic-organic star-shaped hybrids were compared to traditional fully organic lubricant additives. Detailed analysis revealed the multi-functional character of the hybrids by simultaneously performing as bulk viscosity modifiers, boundary lubricant, and wear protectants while being dispersed in a commercially available base oil for automotive lubrication purposes.
    Type: Application
    Filed: July 2, 2018
    Publication date: January 3, 2019
    Applicant: The Regents of the University of California
    Inventors: Bas van Ravensteijn, Raghida Bou Zerdan, Watanabe Takumi, Dongjin Seo, Nicholas Cadirov, Jeffrey Gerbec, Craig J. Hawker, Jacob Israelachvili, Matthew E. Helgeson
  • Publication number: 20160129019
    Abstract: The present invention generally relates to compositions, methods, and systems relating to controlled crystallization and/or nucleation of a molecular species. In some embodiments, the crystallization and/or nucleation of the molecular species may be controlled by tuning the surface chemistry and/or the morphology of a crystallization substrate. In some embodiments, the molecular species is a small organic molecule (e.g., pharmaceutically active agent).
    Type: Application
    Filed: July 24, 2015
    Publication date: May 12, 2016
    Inventors: Bernhardt Levy Trout, Patrick S. Doyle, Trevor Alan Hatton, Allan Stuart Myerson, Ying Diao, Matthew E. Helgeson
  • Patent number: 9138659
    Abstract: The present invention generally relates to compositions, methods, and systems relating to controlled crystallization and/or nucleation of a molecular species. In some embodiments, the crystallization and/or nucleation of the molecular species may be controlled by tuning the surface chemistry and/or the morphology of a crystallization substrate. In some embodiments, the molecular species is a small organic molecule (e.g., pharmaceutically active agent).
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: September 22, 2015
    Assignee: Massachusetts Institute of Technology
    Inventors: Bernhardt Levy Trout, Patrick S. Doyle, Trevor Alan Hatton, Allan Stuart Myerson, Ying Diao, Matthew E. Helgeson
  • Publication number: 20120076860
    Abstract: The present invention generally relates to compositions, methods, and systems relating to controlled crystallization and/or nucleation of a molecular species. In some embodiments, the crystallization and/or nucleation of the molecular species may be controlled by tuning the surface chemistry and/or the morphology of a crystallization substrate. In some embodiments, the molecular species is a small organic molecule (e.g., pharmaceutically active agent).
    Type: Application
    Filed: August 23, 2011
    Publication date: March 29, 2012
    Applicant: Massachusetts Institute of Technology
    Inventors: Bernhardt Levy Trout, Patrick S. Doyle, Trevor Alan Hatton, Allan Stuart Myerson, Ying Diao, Matthew E. Helgeson
  • Publication number: 20100264364
    Abstract: The invention comprises a method of enhancing viscosity and/or viscoelasticity of surfactant solution using nanoparticles. The particle allow a formulator to tailor-make a solution of defined rheology (viscosity and/or viscoelasticity) using nanoparticles to control these properties. Further, the particles allow independent control of each of the variable and further allow the variable to be controlled without use of additional surfactants, polymer and other components traditionally used for this end. The invention also comprises compositions thereof.
    Type: Application
    Filed: October 28, 2008
    Publication date: October 21, 2010
    Inventors: Norman Joseph Wagner, Eric William Kaler, Matthew E. Helgeson, Florian Nettesheim, Matthew Walter Liberatore, Kavssery Parameswaran Ananthapadmanabhan, Martin Swanson Vethamuthu, Alexander Lips