Patents by Inventor Julia A. Kornfield

Julia A. Kornfield 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: 7837326
    Abstract: The present invention relates to lenses that are capable of post-fabrication power modifications. In general, the inventive lenses comprise (i) a first polymer matrix and (ii) a refraction modulating composition that is capable of stimulus-induced polymerization dispersed therein. When at least a portion of the lens is exposed to an appropriate stimulus, the refraction modulating composition forms a second polymer matrix. The amount and location of the second polymer matrix may modify a lens characteristic such as lens power by changing its refractive index and/or by altering its shape. The inventive lenses have a number of applications in the electronics and medical fields as data storage means and as medical lenses, particularly intraocular lenses, respectively.
    Type: Grant
    Filed: June 16, 2006
    Date of Patent: November 23, 2010
    Assignee: Calhoun Vision, Inc.
    Inventors: Jagdish M. Jethmalani, Daniel M. Schwartz, Julia A. Kornfield, Robert H. Grubbs, Christian A. Sandstedt
  • Publication number: 20100258170
    Abstract: Systems and methods for concentrating solar energy without tracking the sun are provided. In one embodiment, the invention relates to a solar collector assembly for collecting and concentrating light for solar cell assemblies, the collector assembly including an array of solar collectors, each including a funnel shaped collector including a side wall defining a tapered opening having a base aperture and an upper aperture, the side wall including an outer surface, and a solar cell assembly positioned at the base aperture, where the outer surface is coated with a material that substantially reflects light, where the upper aperture is wider than the base aperture, where the funnel shaped collector is configured to substantially confine light, incident via the upper aperture, within the funnel shaped collector until the light exits proximate the base aperture, and where the solar cell assembly is configured to capture light exiting the base aperture.
    Type: Application
    Filed: March 13, 2010
    Publication date: October 14, 2010
    Inventors: Julia A. Kornfield, Richard C. Flagan
  • Publication number: 20100261652
    Abstract: There is provided in one embodiment of the disclosure a tissue adhesive composition comprising an engineered protein having repeated blocks of an elastin domain and at least one cell-binding domain and further comprising a polymer crosslinker. When the engineered protein and the polymer crosslinker are introduced onto a tissue, the engineered protein and the polymer crosslinker initiate an in situ crosslinking reaction to form an adhesive bond that is mechanically strong, transparent, biocompatible, and stimulates regrowth of one or more tissue layers over the adhesive bond. In another embodiment of the disclosure there is provided a molded corneal onlay and method of making the same.
    Type: Application
    Filed: March 29, 2010
    Publication date: October 14, 2010
    Applicant: California Institute of Technology
    Inventors: Muzhou Wang, Matthew S. Mattson, David A. Tirrell, Julia A. Kornfield
  • Patent number: 7798644
    Abstract: The present invention relates to lenses that are capable of post-fabrication power modifications. In general, the inventive lenses comprise (i) a first polymer matrix and (ii) a refraction modulating composition that is capable of stimulus-induced polymerization dispersed therein. When at least a portion of the lens is exposed to an appropriate stimulus, the refraction modulating composition forms a second polymer matrix. The amount and location of the second polymer matrix may modify a lens characteristic such as lens power by changing its refractive index and/or by altering its shape. The inventive lenses have a number of applications in the electronics and medical fields as data storage means and as medical lenses, particularly intraocular lenses, respectively.
    Type: Grant
    Filed: May 1, 2007
    Date of Patent: September 21, 2010
    Assignees: California Institute of Technology, The Regents of the University of California
    Inventors: Jagdish M. Jethmalani, Daniel M. Schwartz, Julia A. Kornfield, Robert H. Grubbs, Christian A. Sandstedt
  • Publication number: 20100220279
    Abstract: A system having a ferroelectric liquid host material and a small amount of polymer additive is provided. In an embodiment, the polymer additive improves the physical characteristics of the system. In an embodiment, the system can be used in FLC applications.
    Type: Application
    Filed: January 28, 2010
    Publication date: September 2, 2010
    Inventors: Julia A. Kornfield, Michael Wand, Zuleikha Kurji
  • Patent number: 7727544
    Abstract: The present invention relates to altering the physical and/or chemical properties of at least part of at least one tissue in the eye. In a specific embodiment, it relates to the treatment and/or prevention of myopia. An activating energy source is utilized to photopolymerize or crosslink molecules in the sclera, thereby increasing the strength of the tissue. The individual is administered a crosslinking reagent or photopolymerizable molecule that becomes associated with the membrane, which is then precisely exposed to an energy source, such as light or ultrasound.
    Type: Grant
    Filed: May 9, 2005
    Date of Patent: June 1, 2010
    Assignees: The Regents of the University of California, California Institute of Technology
    Inventors: Daniel M. Schwartz, Chang Jun Yu, Robert H. Grubbs, Julia A. Kornfield, Scott E. Fraser, Matthew S. Mattson
  • Publication number: 20090176941
    Abstract: A process for the preparation of functional molecules using the thiol-ene coupling reaction and a process for the preparation of protected functional thiols, specifically thioesters is provided. The methods may be used to make functional polymers and other molecules. The method of making a functionalized polymer using a thiol-ene reaction comprises: providing a functionalized thioester having the following formula: wherein R is a functional group and COR? is a protecting group; cleaving the functionalized thioester, forming a functional thiol and an acyl group; providing a polymer having a pendant vinyl group; and reacting the polymer with the functional thiol whereby a functionalized polymer is formed, wherein the functional thiol is not isolated prior to reacting with the polymer.
    Type: Application
    Filed: October 15, 2008
    Publication date: July 9, 2009
    Inventors: Ralph L. David, Julia A. Kornfield
  • Publication number: 20080114283
    Abstract: The disclosure concerns altering the mechanical and/or chemical property of a body tissue, particularly an ocular tissue. In specific cases, it concerns altering or stabilizing the shape of the cornea, such as in a subject suffering or at risk for ectasia or keratoconus. In other specific cases, it concerns strengthening the sclera in a subject suffering or at risk for myopia. The invention employs light irradiation of a photoactivatable compound, such as one that applies crosslinking to the tissue, for example.
    Type: Application
    Filed: October 24, 2007
    Publication date: May 15, 2008
    Inventors: Matthew S. Mattson, Julia A. Kornfield, Daniel M. Schwartz, Robert K. Maloney
  • Publication number: 20070260311
    Abstract: The present invention relates to lenses that are capable of post-fabrication power modifications. In general, the inventive lenses comprise (i) a first polymer matrix and (ii) a refraction modulating composition that is capable of stimulus-induced polymerization dispersed therein. When at least a portion of the lens is exposed to an appropriate stimulus, the refraction modulating composition forms a second polymer matrix. The amount and location of the second polymer matrix may modify a lens characteristic such as lens power by changing its refractive index and/or by altering its shape. The inventive lenses have a number of applications in the electronics and medical fields as data storage means and as medical lenses, particularly intraocular lenses, respectively.
    Type: Application
    Filed: May 1, 2007
    Publication date: November 8, 2007
    Inventors: Jagdish Jethmalani, Daniel Schwartz, Julia Kornfield, Robert Grubbs, Christian Sandstedt
  • Patent number: 7241009
    Abstract: Methods and materials are disclosed for the production of optical elements, in particular intraocular lenses (IOL) that incorporate any amount (0 to 99%) of refraction and/or shape modulating compound into a substantially crosslinked first polymeric matrix. The materials produced according to the inventive methods exhibit certain rheological parameters useful in defining medical lenses. These medical lenses have the ability to change their refractive power via changing the refractive index and/or by altering the shape by stimulus induced polymerization.
    Type: Grant
    Filed: June 17, 2004
    Date of Patent: July 10, 2007
    Assignee: Calhoun Vision, Inc.
    Inventors: Julia A. Kornfield, Robert H. Grubbs, Shiao H. Chang, Jagdish M. Jethmalani
  • Patent number: 7237893
    Abstract: The invention relates to novel photoinitiators and their use in light adjustable compositions. The initiatives comprise two or more multiphoton chromophores linked by a bridging compound. The bridging compound consists of a material that is compatible with the base material of the light adjustable composition. The novel photoinitiator permit the readjustment of light adjustable material without the need for significant amounts of photoabsorbers.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: July 3, 2007
    Inventors: Shiao H. Chang, Robert H. Grubbs, Julia A. Kornfield, Axel Brait, Patrick Case
  • Publication number: 20070129802
    Abstract: The present invention relates to a method for creating shaped implants, such as intraocular lenses in vivo, as well as the novel implants themselves. Utilizing the method of the invention, it is possible to create an implant in vivo and to adjust either the physical properties such as refractive index, viscosity, etc., mechanical properties such as modulus, tensile strength, tear, etc., or the shape of the implant by noninvasive means. For example, using the method of the patent it is possible to create an intraocular lens in vivo and then adjust the shape and power of the lens through no invasion means. The novel implants are also addressed in this application.
    Type: Application
    Filed: November 10, 2006
    Publication date: June 7, 2007
    Applicant: CALHOUN VISION, INC.
    Inventors: Jagdish Jethmalani, Shiao Chang, Robert Grubbs, Julia Kornfield, Daniel Schwartz, Christian Sandstedt, F. Christ
  • Patent number: 7210783
    Abstract: The present invention relates to lenses that are capable of post-fabrication power modifications. In general, the inventive lenses comprise (i) a first polymer matrix and (ii) a refraction modulating composition that is capable of stimulus-induced polymerization dispersed therein. When at least a portion of the lens is exposed to an appropriate stimulus, the refraction modulating composition forms a second polymer matrix. The amount and location of the second polymer matrix may modify a lens characteristic such as lens power by changing its refractive index and/or by altering its shape. The inventive lenses have a number of applications in the electronics and medical fields as data storage means and as medical lenses, particularly intraocular lenses, respectively.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: May 1, 2007
    Assignees: California Institute of Technology, The Regents of the University of California
    Inventors: Jagdish M. Jethmalani, Daniel M. Schwartz, Julia A. Kornfield, Robert H. Grubbs, Christian A. Sandstedt
  • Patent number: 7192629
    Abstract: Devices such as capillaries for capillary electrophoresis are formed by contacting a gel precursor with a substrate comprising a permeable material that has higher permeability for organic solvents than water. The gel precursor is made of a water soluble polymer having hydrophobic moieties in a solvent mixture comprising water and an organic solvent, wherein in the absence of the organic solvent, the polymer forms a self-assembled gel. The organic solvent is allowed to permeate through the permeable material resulting in the formation of the self-assembled gel.
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: March 20, 2007
    Assignee: California Institute of Technology
    Inventors: Rob G. H. Lammertink, Todd Thorsen, Stephen R. Quake, Julia A. Kornfield
  • Patent number: 7179509
    Abstract: An electro-optically active polymer gel material comprising a high molecular weight alignment polymer adapted to be homogeneously dispersed throughout a liquid crystal to control the alignment of the liquid crystal molecules and/or confer mechanical stability is provided. The electro-optically active polymer gel comprises a homogenous gel in which the polymer strands of the gel are provided in low concentration and are well solvated by the small molecule liquid crystal without producing unacceptable slowing of its electrooptic response. During formation of the gel, a desired orientation is locked into the gel by physical or chemical cross-linking of the polymer chains. The electro-optically active polymer is then utilized to direct the orientation in the liquid crystal gel in the “field off” state of a liquid crystal display.
    Type: Grant
    Filed: January 12, 2004
    Date of Patent: February 20, 2007
    Assignee: California Institute of Technology
    Inventors: Julia A. Kornfield, Michael D. Kempe
  • Publication number: 20070035698
    Abstract: The present invention relates to lenses that are capable of post-fabrication power modifications. In general, the inventive lenses comprise (i) a first polymer matrix and (ii) a refraction modulating composition that is capable of stimulus-induced polymerization dispersed therein. When at least a portion of the lens is exposed to an appropriate stimulus, the refraction modulating composition forms a second polymer matrix. The amount and location of the second polymer matrix may modify a lens characteristic such as lens power by changing its refractive index and/or by altering its shape. The inventive lenses have a number of applications in the electronics and medical fields as data storage means and as medical lenses, particularly intraocular lenses, respectively.
    Type: Application
    Filed: June 16, 2006
    Publication date: February 15, 2007
    Applicant: CALHOUN VISION, INC
    Inventors: Jagdish Jethmalani, Daniel Schwartz, Julia Kornfield, Robert Grubbs, Christian Sandstedt
  • Patent number: 7074840
    Abstract: The invention relates to novel photoinitiators and their use in light adjustable compositions. The initiatives comprise two or more multiphoton chromophores linked by a bridging compound. The bridging compound consists of a material that is compatible with the base material of the light adjustable composition. The novel photoinitiator permit the readjustment of light adjustable material without the need for significant amounts of photoabsorbers.
    Type: Grant
    Filed: August 9, 2004
    Date of Patent: July 11, 2006
    Assignee: Calhoun Vision
    Inventors: Shiao H. Chang, Robert H. Grubbs, Julia A. Kornfield, Axel Brait
  • Publication number: 20060106126
    Abstract: The invention relates to novel photoinitiators and their use in light adjustable compositions. The initiatives comprise two or more multiphoton chromophores linked by a bridging compound. The bridging compound consists of a material that is compatible with the base material of the light adjustable composition. The novel photoinitiator permit the readjustment of light adjustable material without the need for significant amounts of photoabsorbers.
    Type: Application
    Filed: October 21, 2005
    Publication date: May 18, 2006
    Applicant: CALHOUN VISION, INC
    Inventors: Shiao Chang, Robert Grubbs, Julia Kornfield, Axel Brait, Patrick Case
  • Patent number: 7008675
    Abstract: An electro-optically active polymer gel material comprising a high molecular weight alignment polymer adapted to be homogeneously dispersed throughout a liquid crystal to control the alignment of the liquid crystal molecules and/or confer mechanical stability is provided. The electro-optically active polymer gel comprises a homogenous gel in which the polymer strands of the gel are provided in low concentration and are well solvated by the small molecule liquid crystal without producing unacceptable slowing of its electrooptic response. During formation of the gel, a desired orientation is locked into the gel by physical or chemical cross-linking of the polymer chains. The electro-optically active polymer is then utilized to direct the orientation in the liquid crystal gel in the “field off” state of a liquid crystal display.
    Type: Grant
    Filed: November 19, 2004
    Date of Patent: March 7, 2006
    Assignee: California Institute of Techology
    Inventors: Julia A. Kornfield, Michael D. Kempe
  • Publication number: 20050271590
    Abstract: The present invention relates to altering the physical and/or chemical properties of at least part of at least one tissue in the eye. In a specific embodiment, it relates to the treatment and/or prevention of myopia. An activating energy source is utilized to photopolymerize or crosslink molecules in the sclera, thereby increasing the strength of the tissue. The individual is administered a crosslinking reagent or photopolymerizable molecule that becomes associated with the membrane, which is then precisely exposed to an energy source, such as light or ultrasound.
    Type: Application
    Filed: May 9, 2005
    Publication date: December 8, 2005
    Applicants: CALIFORNIA INSTITUTE OF TECHNOLOGY, THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Daniel Schwartz, Chang Yu, Robert Grubbs, Julia Kornfield, Scott Fraser, Matthew Mattson