Patents by Inventor Dan Lupu

Dan Lupu 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).

  • Apparatus and methods for synthesis of large size batches of carbon nanostructures
    Patent number: 8017892
    Abstract: An apparatus and method for synthesizing nanostructures. In one embodiment, the apparatus includes a reactor having a reaction zone and a conductive susceptor positioned in the reaction zone. The method includes the steps of transporting a gas mixture having an aerosolized catalyst, a feedstock and a carrier gas into the reaction zone of the reactor, inductively heating the reaction zone, and regulating a flow rate of the gas mixture to allow the catalyst to spend a sufficient amount of time in the reaction zone for the growth of nanostructures.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: September 13, 2011
    Assignee: Board of Turstees of the University of Arkansas
    Inventors: Alexandru Sorin Biris, Alexandru Radu Biris, Dan Lupu, Jon Gardner Wilkes, Dan Alexander Buzatu, Dwight Wayne Miller, Jerry A. Darsey
  • Apparatus and methods for synthesis of large size batches of carbon nanostructures
    Patent number: 7473873
    Abstract: An apparatus and method for synthesizing nanostructures. In one embodiment, the apparatus includes a reactor having a reaction zone and a conductive susceptor positioned in the reaction zone. The method includes the steps of transporting a gas mixture having an aerosolized catalyst, a feedstock and a carrier gas into the reaction zone of the reactor, inductively heating the reaction zone, and regulating a flow rate of the gas mixture to allow the catalyst to spend a sufficient amount of time in the reaction zone for the growth of nanostructures.
    Type: Grant
    Filed: September 15, 2005
    Date of Patent: January 6, 2009
    Assignee: The Board of Trustees of the University of Arkansas
    Inventors: Alexandru Sorin Biris, Alexandru Radu Biris, Dan Lupu, Jon Gardner Wilkes, Dan Alexander Buzatu, Dwight Wayne Miller, Jerry A. Darsey
  • Apparatus and methods for synthesis of large size batches of carbon nanostructures
    Publication number: 20080274280
    Abstract: An apparatus and method for synthesizing nanostructures. In one embodiment, the apparatus includes a reactor having a reaction zone and a conductive susceptor positioned in the reaction zone. The method includes the steps of transporting a gas mixture having an aerosolized catalyst, a feedstock and a carrier gas into the reaction zone of the reactor, inductively heating the reaction zone, and regulating a flow rate of the gas mixture to allow the catalyst to spend a sufficient amount of time in the reaction zone for the growth of nanostructures.
    Type: Application
    Filed: July 10, 2008
    Publication date: November 6, 2008
    Applicants: The Government of the United States of America, Department of Health and Human Sevices, Board of Trustees of the University of Arkansas
    Inventors: Alexandru Sorin Biris, Alexandru Radu Biris, Dan Lupu, Jon Gardner Wilkes, Dan Alexander Buzatu, Dwight Wayne Miller, Jerry A. Darsey
  • Production of nanostructure by curie point induction heating
    Publication number: 20080264330
    Abstract: An apparatus for synthesizing nanostructures. In one embodiment, the apparatus includes a heating device that defines a reaction zone therein and a susceptor made of a ferromagnetic material with a Curie temperature and placed in the reaction zone, where the Curie temperature substantially corresponds to a temperature at which the growth of desired nanostructures occurs and the heating device is capable of heating the susceptor substantially at the Curie temperature.
    Type: Application
    Filed: March 6, 2008
    Publication date: October 30, 2008
    Applicant: Board of Trustees of the University of Arkansas
    Inventors: Jon Gardner Wilkes, Dan Alexander Buzatu, Dwight Wayne Miller, Alexandru Sorin Biris, Alexandru Radu Biris, Dan Lupu, Jerry A. Darsey
  • APPARATUS AND METHODS FOR SYNTHESIS OF LARGE SIZE BATCHES OF CARBON NANOSTRUCTURES
    Publication number: 20080223851
    Abstract: An apparatus and method for synthesizing nanostructures. In one embodiment, the apparatus includes a reactor having a reaction zone and a conductive susceptor positioned in the reaction zone. The method includes the steps of transporting a gas mixture having an aerosolized catalyst, a feedstock and a carrier gas into the reaction zone of the reactor, inductively heating the reaction zone, and regulating a flow rate of the gas mixture to allow the catalyst to spend a sufficient amount of time in the reaction zone for the growth of nanostructures.
    Type: Application
    Filed: September 15, 2005
    Publication date: September 18, 2008
    Applicant: Board of Trustees of the University of Arkansas
    Inventors: Alexandru Sorin Biris, Alexandru Radu Biris, Dan Lupu, Jon Gardner Wilkes, Dan Alexander Buzatu, Dwight Wayne Miller, Jerry A. Darsey
  • Production of nanostructures by curie point induction heating
    Patent number: 7365289
    Abstract: An apparatus for synthesizing nanostructures. In one embodiment, the apparatus includes a heating device that defines a reaction zone therein and a susceptor made of a ferromagnetic material with a Curie temperature and placed in the reaction zone, where the Curie temperature substantially corresponds to a temperature at which the growth of desired nanostructures occurs and the heating device is capable of heating the susceptor substantially at the Curie temperature.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: April 29, 2008
    Assignees: The United States of America as represented by the Department of Health and Human Services, Board of Trustees of the University of Arkansas
    Inventors: Jon Gardner Wilkes, Dan Alexander Buzatu, Dwight Wayne Miller, Alexandru Sorin Biris, Alexandru Radu Biris, Dan Lupu, Jerry A. Darsey
  • Production of nanostructures by curie point induction heating
    Publication number: 20070068933
    Abstract: An apparatus for synthesizing nanostructures. In one embodiment, the apparatus includes a heating device that defines a reaction zone therein and a susceptor made of a ferromagnetic material with a Curie temperature and placed in the reaction zone, where the Curie temperature substantially corresponds to a temperature at which the growth of desired nanostructures occurs and the heating device is capable of heating the susceptor substantially at the Curie temperature.
    Type: Application
    Filed: December 14, 2005
    Publication date: March 29, 2007
    Applicant: Board of Trustees of the University of Arkansas
    Inventors: Jon Wilkes, Dan Buzatu, Dwight Miller, Alexandru Biris, Alexandru Biris, Dan Lupu, Jerry Darsey
  • Apparatus and methods of making nanostructures by inductive heating
    Publication number: 20050287297
    Abstract: An apparatus and methods for making nanostructures. In one embodiment, the apparatus has a process chamber having a reaction zone, a conductive susceptor with catalysts placed in the reaction zone, means for providing a time-dependent electromagnetic field in the reaction zone so as to induce a current in the conductive susceptor to generate a heat flow, and means for supplying a carbon-containing gas to the reaction zone under a set of conditions to interact with the catalysts to allow nanostructures to be formed.
    Type: Application
    Filed: May 18, 2005
    Publication date: December 29, 2005
    Applicant: Board of trustees of the University of Arkansas
    Inventors: Alexandru Biris, Dan Lupu, Alexandru Biris, Jon Wilkes, Dan Buzatu, Dwight Miller, Jerry Darsey
  • Apparatus for mounting on a land vehicle for the distribution of markers
    Patent number: 4747515
    Abstract: An apparatus for dispensing markers for distribution in a terrain. The apatus is designed as an add-on unit for mounting on the rear of a self-propelled land vehicle.The markers are units of a foldable type comprising each a base plate and a visible marker member hingedly connected thereto and they are stacked in folded state inside one or more shafts of the apparatus. Near the bottom of each shaft there is provided a delivery gate and shears controllable from the vehicle for the sequential release of individual marker units.
    Type: Grant
    Filed: July 9, 1986
    Date of Patent: May 31, 1988
    Assignee: The State of Israel, Ministry of Defence, Israel Military Industries
    Inventors: Igal Kasher, Dan Lupu