Patents Assigned to Chromagen
  • Patent number: 9028064
    Abstract: Methods of fabricating and prescribing lenses suitable for color blindness and dyslexia correction are disclosed. The corrective lens may be formed of an optically transparent base material, which is tinted to a desired color for correction by immersion in a colorant dye. The color tinted lens is then tinted by a neutral tint dye to render the lens observable as a regular corrective lens. Prescription of such lenses may be based on a dynamically balanced, or haploscopic, fashion of prescription that comprises selecting a first visual filter from a set of sixteen filters and a second visual filter from the remaining set of fifteen filters, the first for the dominant eye and the second for non-dominant eye.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: May 12, 2015
    Assignee: ChromaGen Vision LLC
    Inventor: David Andrew Harris
  • Patent number: 8414127
    Abstract: Methods of fabricating and prescribing lenses suitable for color blindness and dyslexia correction are disclosed. The corrective lens may be formed of an optically transparent base material, which is tinted to a desired color for correction by immersion in a colorant dye. The color tinted lens is then tinted by a neutral tint dye to render the lens observable as a regular corrective lens. Prescription of such lenses may be based on a dynamically balanced, or haploscopic, fashion of prescription that comprises selecting a first visual filter from a set of sixteen filters and a second visual filter from the remaining set of fifteen filters, the first for the dominant eye and the second for non-dominant eye.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: April 9, 2013
    Assignee: ChromaGen Vision LLC
    Inventor: David Andrew Harris
  • Publication number: 20120273110
    Abstract: Methods of fabricating and prescribing lenses suitable for color blindness and dyslexia correction are disclosed. The corrective lens may be formed of an optically transparent base material, which is tinted to a desired color for correction by immersion in a colorant dye. The color tinted lens is then tinted by a neutral tint dye to render the lens observable as a regular corrective lens. Prescription of such lenses may be based on a dynamically balanced, or haploscopic, fashion of prescription that comprises selecting a first visual filter from a set of sixteen filters and a second visual filter from the remaining set of fifteen filters, the first for the dominant eye and the second for non-dominant eye.
    Type: Application
    Filed: June 25, 2012
    Publication date: November 1, 2012
    Applicant: ChromaGen Vision LLC
    Inventor: David Andrew Harris
  • Publication number: 20110176105
    Abstract: Methods of fabricating and prescribing lenses suitable for color blindness and dyslexia correction are disclosed. The corrective lens may be formed of an optically transparent base material, which is tinted to a desired color for correction by immersion in a colorant dye. The color tinted lens is then tinted by a neutral tint dye to render the lens observable as a regular corrective lens. Prescription of such lenses may be based on a dynamically balanced, or haploscopic, fashion of prescription that comprises selecting a first visual filter from a set of sixteen filters and a second visual filter from the remaining set of fifteen filters, the first for the dominant eye and the second for non-dominant eye.
    Type: Application
    Filed: March 31, 2011
    Publication date: July 21, 2011
    Applicant: ChromaGen Vision LLC
    Inventor: David Andrew Harris
  • Publication number: 20080225289
    Abstract: A fluorescence spectrophotometer system may be implemented in scanning fluorescence polarization detection applications. A wavelength and area scanning fluorescence spectrophotometer system may include a light source, an excitation double monochromator, an excitation/emission light transfer module, an emission double monochromator, a high speed timer-counter circuit board, a precision positioning apparatus for positioning a sample relative to the focal plane of the excitation light, and polarizing filters at the excitation side and the emission side. The system may be operative to analyze more than one fluorescent compound in the sample; additionally or alternatively, the system enables analysis of samples from selected ones of a plurality of samples.
    Type: Application
    Filed: March 31, 2008
    Publication date: September 18, 2008
    Applicant: CHROMAGEN, INC.
    Inventors: Gene Gould, Michael J. Conrad
  • Patent number: 7411673
    Abstract: A fluorescence spectrophotometer having an excitation double monochromator, a coaxial excitation/emission light transfer module, and an emission double monochromator. Each monochromator includes a pair of holographic concave gratings mounted to precisely select a desired band of wavelengths from incoming broadband light without using other optical elements, such as mirrors. Selected excitation light is directed into a sample well by a light transfer module that includes a coaxial excitation mirror positioned to direct excitation light directly to the bottom of a well of a multi-well plate. Fluorescence emission light that exits the well opening is collected by a relatively large coaxial emission mirror. The collected emission light is wavelength selected by the emission double monochromator. Selected emission light is detected by a photodetector module.
    Type: Grant
    Filed: September 8, 2003
    Date of Patent: August 12, 2008
    Assignee: Chromagen, Inc.
    Inventors: Gene Gould, Michael J. Conrad
  • Patent number: 7352459
    Abstract: A fluorescence spectrophotometer system may be implemented in scanning fluorescence polarization detection applications. A wavelength and area scanning fluorescence spectrophotometer system may include a light source, an excitation double monochromator, an excitation/emission light transfer module, an emission double monochromator, a high speed timer-counter circuit board, a precision positioning apparatus for positioning a sample relative to the focal plane of the excitation light, and polarizing filters at the excitation side and the emission side. The system may be operative to analyze more than one fluorescent compound in the sample; additionally or alternatively, the system enables analysis of samples from selected ones of a plurality of samples.
    Type: Grant
    Filed: December 31, 2001
    Date of Patent: April 1, 2008
    Assignee: Chromagen, Inc.
    Inventors: Gene Gould, Michael J. Conrad
  • Patent number: 6949632
    Abstract: The subject invention provides compounds useful as fluorogenic substrates for the hydrolytic enzymes. Upon hydrolysis of the hydrolyzable group, a halo-pyrene substituted molecule is developed which is highly fluorescent, water soluble and exhibits several desirable characteristics, including a large Stokes' shift.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: September 27, 2005
    Assignee: Chromagen, Inc.
    Inventors: Michael J. Conrad, Liyan He
  • Publication number: 20040046956
    Abstract: A fluorescence spectrophotometer having an excitation double monochromator, a coaxial excitation/emission light transfer module, and an emission double monochromator. Each monochromator includes a pair of holographic concave gratings mounted to precisely select a desired band of wavelengths from incoming broadband light without using other optical elements, such as mirrors. Selected excitation light is directed into a sample well by a light transfer module that includes a coaxial excitation mirror positioned to direct excitation light directly to the bottom of a well of a multi-well plate. Fluorescence emission light that exits the well opening is collected by a relatively large coaxial emission mirror. The collected emission light is wavelength selected by the emission double monochromator. Selected emission light is detected by a photodetector module.
    Type: Application
    Filed: September 8, 2003
    Publication date: March 11, 2004
    Applicant: Chromagen, Inc.
    Inventors: Gene Gould, Michael J. Conrad
  • Patent number: 6654119
    Abstract: A fluorescence spectrophotometer having an excitation double monochromator, a coaxial excitation/emission light transfer module, and an emission double monochromator. Each monochromator includes a pair of holographic concave gratings mounted to precisely select a desired band of wavelengths from incoming broadband light without using other optical elements, such as mirrors. Selected excitation light is directed into a sample well by a light transfer module that includes a coaxial excitation mirror positioned to direct excitation light directly to the bottom of a well of a multi-well plate. Fluorescence emission light that exits the well opening is collected by a relatively large coaxial emission mirror. The collected emission light is wavelength selected by the emission double monochromator. Selected emission light is detected by a photodetector module.
    Type: Grant
    Filed: April 20, 2000
    Date of Patent: November 25, 2003
    Assignee: Chromagen, Inc.
    Inventors: Gene Gould, Michael J. Conrad
  • Patent number: 6635435
    Abstract: The subject invention provides compounds useful as fluorogenic substrates. Upon hydrolysis of a hydrolyzable group, a halo-pyrene substituted molecule is developed which is highly fluorescent, water soluble and exhibits several desirable characteristics, including a large Stokers' shift.
    Type: Grant
    Filed: July 9, 1999
    Date of Patent: October 21, 2003
    Assignee: Chromagen, Inc.
    Inventors: Michael J. Conrad, Liyan He
  • Patent number: 6268132
    Abstract: Structural analogs of the six non-fluorescentN-nucleosides commonly found in RNA and DNA, which are inherently fluorescent under physiological conditions, are identified and methods for their preparation provided. Such analogs may be incorporated into DNA and/or RNA oligonucleotides via either enzymatic or chemical synthesis to produce fluorescent oligonucleotides having prescribed sequences. Such analogous sequences may be identical to, or the analogous complement of, template or target DNA or RNA sequences to which the fluorescent oligonucleotides can be hybridized. Methods of preparing either RNA or DNA oligonucleotide probes of the invention, intermediates used in such methods, and methods of using the probes of the invention in oligonucleotide amplification, detection, identification, and/or hybridization assays are also provided.
    Type: Grant
    Filed: March 13, 1998
    Date of Patent: July 31, 2001
    Assignee: Chromagen, Inc.
    Inventor: Michael J. Conrad
  • Patent number: 5763167
    Abstract: Structural analogs of the six non-fluorescent N-nucleosides commonly found in RNA and DNA, which are inherently fluorescent under physiological conditions, are identified and methods for their preparation provided. Such analogs may be incorporated into DNA and/or RNA oligonucleotides via either enzymatic or chemical synthesis to produce fluorescent oligonucleotides having prescribed sequences. Such analogous sequences may be identical to, or the analogous complement of, template or target DNA or RNA sequences to which the fluorescent oligonucleotides can be hybridized. Methods of preparing either RNA or DNA oligonucleotide probes of the invention, intermediates used in such methods, and methods of using the probes of the invention in oligonucleotide amplification, detection, identification, and/or hybridization assays are also provided.
    Type: Grant
    Filed: March 21, 1994
    Date of Patent: June 9, 1998
    Assignee: Chromagen
    Inventor: Michael J. Conrad
  • Patent number: 5728525
    Abstract: Structural analogs of the six non-fluorescent N-nucleosides commonly found in RNA and DNA, which are inherently fluorescent under physiological conditions, are identified and methods for their preparation provided. Such analogs may be incorporated into DNA and/or RNA oligonucleotides via either enzymatic or chemical synthesis to produce fluorescent oligonucleotides having prescribed sequences. Such analogous sequences may be identical to, or the analogous complement of, template or target DNA or RNA sequences to which the fluorescent oligonucleotides can be hybridized. Methods of preparing either RNA or DNA oligonucleotide probes of the invention, intermediates used in such methods, and methods of using the probes of the invention in oligonucleotide amplification, detection, identification, and/or hybridization assays are also provided.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: March 17, 1998
    Assignee: Chromagen, Inc.
    Inventor: Michael J. Conrad