Patents by Inventor Dean Holunga

Dean Holunga 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).

  • System and method for making nanoparticles using atmospheric-pressure plasma microreactor
    Patent number: 7297619
    Abstract: A system and method for making nanoparticles. The system includes a first cathode including a first metal tube associated with a first end and a second end, a first anode including a second metal tube associated with a third end and a fourth end, and a first container including a first gas inlet. The first end and the third end are located inside the first container. The first end and the third end are separated by a first gap, the first metal tube is configured to allow a first gas to flow from the second end to the first end, and the first container is configured to allow a second gas to flow from the first gas inlet into the second metal tube through at least a first part of the first gap.
    Type: Grant
    Filed: May 4, 2005
    Date of Patent: November 20, 2007
    Assignee: California Institute of Technology
    Inventors: R. Mohan Sankaran, Konstantinos P. Giapis, Richard C. Flagan, Dean Holunga
  • System and method for making nanoparticles using atmospheric-pressure plasma microreactor
    Publication number: 20060042414
    Abstract: A system and method for making nanoparticles. The system includes a first cathode including a first metal tube associated with a first end and a second end, a first anode including a second metal tube associated with a third end and a fourth end, and a first container including a first gas inlet. The first end and the third end are located inside the first container. The first end and the third end are separated by a first gap, the first metal tube is configured to allow a first gas to flow from the second end to the first end, and the first container is configured to allow a second gas to flow from the first gas inlet into the second metal tube through at least a first part of the first gap.
    Type: Application
    Filed: May 4, 2005
    Publication date: March 2, 2006
    Applicant: California Institute of Technology
    Inventors: R. Sankaran, Konstantinos Giapis, Richard Flagan, Dean Holunga
  • Turbulent mixing aerosol nanoparticle reactor and method of operating the same
    Publication number: 20060024435
    Abstract: A nanoparticle reactor comprises a nucleation and core growth region providing a laminar flow of reactants in which the reactants thermally decompose to produce a supersaturated vapor that nucleates aerosol particles into particle cores. Nozzle(s) turbulently mix a preheated diluent into the heated reactants. The mixed preheated diluent and heated reactants flow into a core densification region where particle growth is quenched, coagulation limited and sufficient thermal energy for densification of the cores of the particles is provided. Nozzles turbulently mix a preheated additional reactant. A jet and chemical injection and layer formation region is used to develop the particle cores.
    Type: Application
    Filed: October 12, 2004
    Publication date: February 2, 2006
    Inventors: Dean Holunga, Richard Flagan, Harry Atwater