Patents by Inventor Leon Der

Leon Der 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).

  • SYSTEMS AND METHODS FOR IDENTIFYING AND ISOLATING INVASIVE SUBPOPULATIONS OF CANCER CELLS IN REAL-TIME
    Publication number: 20220113298
    Abstract: Systems and methods for characterizing cancer cells are disclosed. In certain embodiments, the systems and methods involve coating a first chamber with ECM material and adding a first plurality of cells to the first chamber, adding media to a second chamber, and adding a second plurality of cells and media to a third chamber. The first, second, and third chambers are then clipped together to form a chamber array. The chamber array is mounted to an electric cell impedance sensing reader and impedance readouts of cell invasion are collected from the electric array at time intervals. Cells detected to invade into the second chamber are extracted and characterized.
    Type: Application
    Filed: September 9, 2019
    Publication date: April 14, 2022
    Inventors: Anton Wellstein, Ghada M. Sharif, Makarand Paranjape, Leon Der
  • Dryer for preparation of dry nanoparticles
    Patent number: 11002482
    Abstract: A system for producing dry nanoparticles from a liquid includes a closed tubing system which incorporates a mister, heater and an electrostatic collector therein. The system is able to produce dry nanoparticles from liquid-suspensions and from solvent solutions.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: May 11, 2021
    Assignee: Georgetown University
    Inventors: Edward Van Keuren, Grace Maglieri, Roman Kosarzycki, Leon Der
  • Dryer For Preparation of Dry Nanoparticles
    Publication number: 20200064065
    Abstract: A system for producing dry nanoparticles from a liquid includes a closed tubing system which incorporates a mister, heater and an electrostatic collector therein. The system is able to produce dry nanoparticles from liquid-suspensions and from solvent solutions.
    Type: Application
    Filed: November 4, 2019
    Publication date: February 27, 2020
    Applicant: Georgetown University
    Inventors: Edward Van Keuren, Grace Maglieri, Roman Kosarzycki, Leon Der
  • Dryer for preparation of dry nanoparticles
    Patent number: 10473393
    Abstract: A system for producing dry nanoparticles from a liquid includes a closed tubing system which incorporates a mister, heater and an electrostatic collector therein. The system is able to produce dry nanoparticles from liquid-suspensions and from solvent solutions.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: November 12, 2019
    Assignee: Georgetown University
    Inventors: Edward Van Keuren, Grace Maglieri, Roman Kosarzycki, Leon Der
  • Dryer For Preparation of Dry Nanoparticles
    Publication number: 20180106536
    Abstract: A system for producing dry nanoparticles from a liquid includes a closed tubing system which incorporates a mister, heater and an electrostatic collector therein. The system is able to produce dry nanoparticles from liquid-suspensions and from solvent solutions.
    Type: Application
    Filed: September 27, 2017
    Publication date: April 19, 2018
    Applicant: Georgetown University
    Inventors: Edward Van Keuren, Grace Maglieri, Roman Kosarzycki, Leon Der
  • Radiosurgery methods that utilize stereotactic methods to precisely deliver high dosages of radiation especially to the spine
    Patent number: 6665555
    Abstract: A system for delivery of high dosage of radiation to a targeted spinal area is provided. This is accomplished by a system which provides for precise immobilization and positioning of the treated spinal area during dose planning and treatment via stereotactic radiosurgery. Advantages of the system include convenience to the patient, enhanced efficacy, and reduced risk of radiotoxicity to non-target tissues.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: December 16, 2003
    Assignee: Georgetown University School of Medicine
    Inventors: Fraser C. Henderson, James Rodgers, Azam Niroomand-Rad, Kevin Cleary, Anatoly Dritschilo, Leon Der
  • Novel radiosurgery methods that utilize stereotactic methods to precisely deliver high dosages of radiation especially to the spine
    Publication number: 20020032378
    Abstract: A system for delivery of high dosage of radiation to a targeted spinal area is provided. This is accomplished by a system which provides for precise immobilization and positioning of the treated spinal area during dose planning and treatment via stereotactic radiosurgery. Advantages of the system include convenience to the patient, enhanced efficacy, and reduced risk of radiotoxicity to non-target tissues.
    Type: Application
    Filed: April 5, 2001
    Publication date: March 14, 2002
    Inventors: Fraser C. Henderson, James Rodgers, Azam Niroomand-Rad, Kevin Cleary, Anatoly Dritschilo, Leon Der