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).

  • Publication number: 20050244589
    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: Application
    Filed: November 19, 2004
    Publication date: November 3, 2005
    Inventors: Julia Kornfield, Michael Kempe
  • Publication number: 20050226933
    Abstract: The invention features materials and methods for the liquid to solid transition of an injectable pre-hydrogel composition to a hydrogel. These methods can be carried out in situ.
    Type: Application
    Filed: February 22, 2005
    Publication date: October 13, 2005
    Inventors: Jeffrey Hubbell, Julia Kornfield, Giyoong Tae
  • Patent number: 6858229
    Abstract: The invention features materials and methods for the liquid to solid transition of an injectable pre-hydrogel composition to a hydrogel. These methods can be carried out in situ.
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: February 22, 2005
    Assignee: California Institute of Technology
    Inventors: Jeffrey A. Hubbell, Julia A. Kornfield, Giyoong Tae
  • Publication number: 20050027031
    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: August 9, 2004
    Publication date: February 3, 2005
    Inventors: Shiao Chang, Robert Grubbs, Julia Kornfield, Axel Brait
  • Publication number: 20050018310
    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: Application
    Filed: June 17, 2004
    Publication date: January 27, 2005
    Inventors: Julia Kornfield, Robert Grubbs, Shiao Chang
  • Patent number: 6824266
    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: February 3, 2003
    Date of Patent: November 30, 2004
    Assignees: California Institute of Technology, Regents of the University of California
    Inventors: Jagdish M. Jethmalani, Daniel M. Schwartz, Julia A. Kornfield, Robert H. Grubbs, Christian A. Sandstedt
  • Patent number: 6821455
    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: April 5, 2001
    Date of Patent: November 23, 2004
    Assignee: California Institute of Technology
    Inventors: Julia A. Kornfield, Michael D. Kempe
  • Patent number: 6813097
    Abstract: Novel optical elements are provided which are capable of post fabrication modifications. Specifically, the invention includes lenses, such as intraocular lens, which can undergo changes in storage modulus after fabrication.
    Type: Grant
    Filed: August 15, 2002
    Date of Patent: November 2, 2004
    Assignees: California Institute of Technology, The Regents of the University of California
    Inventors: Jagdish M. Jethmalani, Robert H. Grubbs, Julia A. Kornfield, Daniel M. Schwartz, Christian A. Sandstedt, Eric Pape
  • Publication number: 20040142117
    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: Application
    Filed: January 12, 2004
    Publication date: July 22, 2004
    Applicant: California Institute of Technology
    Inventors: Julia A. Kornfield, Michael D. Kempe
  • Patent number: 6749632
    Abstract: The present invention relates to methods of implementing an optical element having a refraction modulating composition. The methods include using a wavefront sensor to provide an optical measurement of the optical element. The present invention also relates to systems comprising an optical element having a refraction modulating composition and a wavefront sensor.
    Type: Grant
    Filed: March 20, 2001
    Date of Patent: June 15, 2004
    Assignees: California Institute of Technology, The Regents of the University of California, Calhoun Vision, Inc.
    Inventors: Christian A. Sandstedt, Jagdish M. Jethmalani, Robert H. Grubbs, Julia A. Kornfield, Daniel M. Schwartz, Robert Maloney
  • Publication number: 20030173691
    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: February 3, 2003
    Publication date: September 18, 2003
    Inventors: Jagdish M. Jethmalani, Daniel M. Schwartz, Julia A. Kornfield, Robert H. Grubbs, Christian A. Sandstedt
  • Publication number: 20030151825
    Abstract: The invention relates to novel, light adjustable optical elements. The optical elements contain an acrylate-based modifying composition which is capable of stimulus-induced polymerization. Novel telechelic acrylate polymers are also disclosed.
    Type: Application
    Filed: December 23, 2002
    Publication date: August 14, 2003
    Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Christopher W. Bielawski, Jagdish M. Jethmalani, Robert H. Grubbs, Julia A. Kornfield
  • Publication number: 20030151719
    Abstract: Novel optical elements are provided which are capable of post fabrication modifications. Specifically, the invention includes lenses, such as intraocular lens, which can undergo changes in storage modulus after fabrication.
    Type: Application
    Filed: August 15, 2002
    Publication date: August 14, 2003
    Inventors: Jagdish M. Jethmalani, Robert H. Grubbs, Julia A. Kornfield, Daniel M. Schwartz, Christian A. Sandstedt, Eric Pape
  • Publication number: 20030134129
    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: Application
    Filed: October 11, 2002
    Publication date: July 17, 2003
    Inventors: Rob G.H. Lammertink, Todd Thorsen, Stephen R. Quake, Julia A. Kornfield
  • Publication number: 20030090013
    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 18, 2002
    Publication date: May 15, 2003
    Inventors: Jagdish M. Jethmalani, Daniel M. Schwartz, Julia A. Kornfield, Robert H. Grubbs, Christian A. Sandstedt
  • Publication number: 20030093150
    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 18, 2002
    Publication date: May 15, 2003
    Inventors: Jagdish M. Jethmalani, Daniel M. Schwartz, Julia A. Kornfield, Robert H. Grubbs, Christian A. Sandstedt
  • Publication number: 20030090624
    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 18, 2002
    Publication date: May 15, 2003
    Inventors: Jagdish M. Jethmalani, Daniel M. Schwartz, Julia A. Kornfield, Robert H. Grubbs, Christian A. Sandstedt
  • Publication number: 20030048411
    Abstract: A method for evaluating the effectiveness of adjustable optical implants is provided The implants are first inserted into a test subject. The implant is then exposed to an external stimulus, such as light, to induce a change in the properties of the implant. The implants are then evaluated to determine the nature and extent of the change in properties.
    Type: Application
    Filed: July 10, 2002
    Publication date: March 13, 2003
    Inventors: Jagdish M. Jethmalani, Robert K. Maloney, Robert H. Grubbs, Julia A. Kornfield, Christian A. Sandstedt, Daniel M. Schwartz
  • Publication number: 20020167735
    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: November 21, 2001
    Publication date: November 14, 2002
    Inventors: Jagdish M. Jethmalani, Robert H. Grubbs, Christian A. Sandstedt, Julia A. Kornfield, Daniel M. Schwartz, Eric Pape
  • Publication number: 20020169505
    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: March 21, 2002
    Publication date: November 14, 2002
    Inventors: Jagdish M. Jethmalani, Shiao H. Chang, Robert H. Grubbs, Julia A. Kornfield, Daniel M. Schwartz, Christian A. Sandstedt, F. Richard Christ