Patents by Inventor Natalia Levit

Natalia Levit 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).

  • Molecular imprinting of small particles, and production of small particles from solid state reactants
    Patent number: 7442754
    Abstract: Small particles of polymeric material are produced by expansion of a mixture of monomers and a propellant. The size and shape of the particles can be precisely tailored by materials selection and expansion conditions. Particles of 10 nanometers to 100 microns can be produced. If monomers exhibiting solid state reactivity are utilized, the particles thus formed can be polymerized at any time after formation. The particles produced by this method can be molecularly imprinted by incorporating a template into the particle prior to fully curing the particle, in a manner which allows selective extraction of the template from the cured particle after formation without deformation of the imprint site. A two step polymerization process allows the particles to be deposited on and adhered to a wide variety of substrates without additional agents.
    Type: Grant
    Filed: October 10, 2003
    Date of Patent: October 28, 2008
    Assignee: Virginia Commonwealth University
    Inventors: Gary Tepper, Dmitry Pestov, Natalia Levit, Gary Wnek
  • MOLECULAR IMPRINTING OF SMALL PARTICLES, AND PRODUCTION OF SMALL PARTICLES FROM SOLID STATE REACTANTS
    Publication number: 20080242820
    Abstract: Small particles of polymeric material are produced by expansion of a mixture of monomers and a propellant. The size and shape of the particles can be precisely tailored by materials selection and expansion conditions. Particles of 10 nanometers to 100 microns can be produced. If monomers exhibiting solid state reactivity are utilized, the particles thus formed can be polymerized at any time after formation. The particles produced by this method can be molecularly imprinted by incorporating a template into the particle prior to fully curing the particle, in a manner which allows selective extraction of the template from the cured particle after formation without deformation of the imprint site. A two step polymerization process allows the particles to be deposited on and adhered to a wide variety of substrates without additional agents.
    Type: Application
    Filed: October 10, 2003
    Publication date: October 2, 2008
    Inventors: Gary Tepper, Dmitry Pestov, Natalia Levit, Gary Wnek
  • Molecular imprinting of small particles, and production of small particles from solid state reactants
    Patent number: 6660176
    Abstract: Small particles of polymeric material are produced by expansion of a mixture of monomers and a propellant. The size and shape of the particles can be precisely tailored by materials selection and expansion conditions. Particles of 10 nanometers to 100 microns can be produced. If monomers exhibiting solid state reactivity are utilized, the particles thus formed can be polymerized at any time after formation. The particles produced by this method can be molecularly imprinted by incorporating a template into the particle prior to fully curing the particle, in a manner which allows selective extraction of the template from the cured particle after formation without deformation of the imprint site. A two step polymerization process allows the particles to be deposited on and adhered to a wide variety of substrates without additional agents.
    Type: Grant
    Filed: January 24, 2002
    Date of Patent: December 9, 2003
    Assignee: Virginia Commonwealth University
    Inventors: Gary Tepper, Dmitry Pestov, Natalia Levit, Gary Wnek
  • Molecular imprinting of small particles, and production of small particles from solid state reactants
    Publication number: 20020102312
    Abstract: Small particles of polymeric material are produced by expansion of a mixture of monomers and a propellant. The size and shape of the particles can be precisely tailored by materials selection and expansion conditions. Particles of 10 nanometers to 100 microns can be produced. If monomers exhibiting solid state reactivity are utilized, the particles thus formed can be polymerized at any time after formation. The particles produced by this method can be molecularly imprinted by incorporating a template into the particle prior to fully curing the particle, in a manner which allows selective extraction of the template from the cured particle after formation without deformation of the imprint site. A two step polymerization process allows the particles to be deposited on and adhered to a wide variety of substrates without additional agents.
    Type: Application
    Filed: January 24, 2002
    Publication date: August 1, 2002
    Inventors: Gary Tepper, Dmitry Pestov, Natalia Levit, Gary Wnek