Patents by Inventor Robert A. Lieberman
Robert A. Lieberman 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).
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Patent number: 7650051Abstract: Distributed fiber optic chemical and physical sensors can provide a relatively highly uniform response over the length of the fiber by, for example, varying such properties as the core/cladding index of refraction ratio to compensate for the non-linearity in sensitivity. The phenomenon of spatial transient over a length of a fiber introduces such a nonlinearity that can be compensated for by varying at least one parameter of the optical fiber.Type: GrantFiled: August 21, 2007Date of Patent: January 19, 2010Assignee: Optech Ventures, LLCInventors: Robert A. Lieberman, Claudio O. Egalon
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Patent number: 7551810Abstract: A fiber optic sensor for sensing the presence of an analyte has a plurality of optical fibers each of which has at least one analyte sensing segment and one or more low loss lead portion, where the optical fibers are disposed on the periphery of a fiber carrier. The analyte sensing segments may be disposed in an offset relationship to provide continuous detection over a desired distance or they may be spaced apart to provide detection at selected locations. More than one set of optical fibers with sensing segments may be combined to provide detection of multiple analytes. Multiple fiber carriers allow each segment or the grouped sets of segments to be coupled together over a distance either in offset relationship or in spaced apart relationship.Type: GrantFiled: September 22, 2005Date of Patent: June 23, 2009Assignee: Optech Ventures, LLCInventors: Alexander Berger, Robert A. Lieberman
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Patent number: 7518724Abstract: Image data is acquired, processed, and/or displayed in accordance with an embodiment of the present disclosure to display, monitor, and/or demonstrate the progress of an experiment substantially in real-time and with high sensitivity. In one embodiment, at least one time-resolved value of spatially distributed polarization change data is provided and displayed. Advantageously, real-time processing and display of data is provided such that discussion and collaboration about the experiment may occur, time-resolved data is not lost, and resources are not wasted.Type: GrantFiled: December 29, 2005Date of Patent: April 14, 2009Assignee: Maven TechnologiesInventors: William R. Rassman, David Ralin, Jason D. Berger, Robert A. Lieberman, Lothar U. Kempen
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Patent number: 7496267Abstract: A photosensitive sol-gel film containing an organometallic photosensitizer is deposited on the oxide containing surface layer of a silicon substrate. A pattern of white or ultra violet light incident to the photosensitive sol-gel film results in the unbinding of the photosensitizer from the exposed regions of the sol-gel film. A subsequent succession of first and second heating steps results in, first, the removal of the photo sensitizer constituents from the exposed regions of the sol-gel film and, second, the removal of the organic constituents from the exposed regions, resulting in regions doped with a metal oxide with non linear optical properties, such as semicondutive, etc. properties. Optical switches, couplers, waveguides, splitters, interferometers wavelength division multiplexer, Bragg gratings and more can be fabricated. A glass substrate also may be employed, instead of a silicon, in which case a separate silicon oxide surface layer is unnecessary.Type: GrantFiled: October 16, 2007Date of Patent: February 24, 2009Inventors: Edgar A. Mendoza, Lothar U. Kempen, Robert A. Lieberman
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Publication number: 20080204750Abstract: Image data is acquired, processed, and/or displayed in accordance with an embodiment of the present disclosure to display, monitor, and/or demonstrate the progress of an experiment substantially in real-time and with high sensitivity. In one embodiment, at least one time-resolved value of spatially distributed polarization change data is provided and displayed. Advantageously, real-time processing and display of data is provided such that discussion and collaboration about the experiment may occur, time-resolved data is not lost, and resources are not wasted.Type: ApplicationFiled: May 8, 2008Publication date: August 28, 2008Applicant: MAVEN TECHNOLOGIES, INC.Inventors: William R Rassman, David Ralin, Jason D. Berger, Robert A. Lieberman, Lothar U. Kempen
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Patent number: 7283717Abstract: A photosensitive sol-gel film containing an organometallic photosensitizer is deposited on the oxide containing surface layer of a silicon substrate. A pattern of white or ultra violet light incident to the photosensitive sol-gel film results in the unbinding of the photosensitizer from the exposed regions of the sol-gel film. A subsequent succession of first and second heating steps results in, first, the removal of the photo sensitizer constituents from the exposed regions of the sol-gel film and, second, the removal of the organic constituents from the exposed regions, resulting in regions doped with a metal oxide with non linear optical properties, such as semicondutive, etc. properties. Optical switches, couplers, waveguides, splitters, interferometers wavelength division multiplexer, Bragg gratings and more can be fabricated. A glass substrate also may be employed, instead of a silicon, in which case a separate silicon oxide surface layer is unnecessary.Type: GrantFiled: March 21, 2006Date of Patent: October 16, 2007Assignee: Optinetrics, Inc.Inventors: Edgar A. Mendoza, Lothar U. Kempen, Robert A. Lieberman
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Patent number: 7260283Abstract: Distributed fiber optic chemical and physical sensors provide a relatively highly uniform response over the length of the fiber by, for example, varying such properties as the core/cladding index of refraction ratio to compensate for the non-linearity in sensitivity due for example to the loss of higher order modes in multi-mode fibers. The variation of the ratio changes the absorption coefficient of the fiber and can be used to compensate for any non-linearity in response. Other techniques for compensation also are disclosed.Type: GrantFiled: February 28, 2006Date of Patent: August 21, 2007Assignee: Optech Ventures, LLCInventors: Robert A. Lieberman, Claudio O. Egalon
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Patent number: 7193711Abstract: An imaging method and apparatus are provided, including a light source emitting a polarized light beam, and an optical assembly including a control layer and/or a light reflection surface. The control layer advantageously allows for control over the properties of a generated evanescent wave to optimize an image of a specimen array within the evanescent wave. The light reflection surface includes coupling means used to couple a receptor/capture agent advantageously allowing for flexible control over receptor specific regions.Type: GrantFiled: May 17, 2004Date of Patent: March 20, 2007Assignee: Maven Technologies, LLCInventors: William Rassman, David Ralin, Robert A. Lieberman, Lothar U. Kempen, Herbert Shapiro
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Patent number: 7126688Abstract: Methods and apparatus for scanning of a microarray to provide an image of the microarray are disclosed. Data related to change in polarization state of a scanning light beam for individual points or lines or other portion of the microarray are collected and processed to image the microarray at high resolution and speed.Type: GrantFiled: May 17, 2004Date of Patent: October 24, 2006Assignee: Maven Technologies, LLCInventors: William Rassman, David Ralin, Robert A. Lieberman, Lothar U. Kempen, Herbert Shapiro
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Patent number: 7016589Abstract: A photosensitive sol-gel film containing an organometallic photosensitizer is deposited on the oxide containing surface layer of a silicon substrate. A pattern of white or ultra violet light incident to the photosensitive sol-gel film results in the unbinding of the photosensitizer from the exposed regions of the sol-gel film. A subsequent succession of first and second heating steps results in, first, the removal of the photo sensitizer constituents from the exposed regions of the sol-gel film and, second, the removal of the organic constituents from the exposed regions, resulting in regions doped with a metal oxide with non linear optical properties, such as semicondutive, electro-optic, magneto-optic, etc. properties. Optical switches, couplers, waveguides, splitters, interferometers wavelength division multiplexer, Bragg gratings and more can be fabricated. A glass substrate also may be employed, instead of a silicon, in which case a separate silicon oxide surface layer is unnecessary.Type: GrantFiled: May 19, 2000Date of Patent: March 21, 2006Assignee: Optinetrics, Inc.Inventors: Edgar A. Mendoza, Lothar U. Kempen, Robert A. Lieberman
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Patent number: 7006718Abstract: Distributed fiber optic chemical and physical sensors provide a relatively highly uniform response over the length of the fiber by, for example, varying such properties as the core/cladding index of refraction ratio to compensate for the non-linearity in sensitivity due to the loss of higher order modes in multi-mode fibers. The variation of the ratio changes the absorption coefficient of the fiber and can be used to compensate for any non-linearity in response. Other techniques for compensation also are disclosed.Type: GrantFiled: November 19, 2003Date of Patent: February 28, 2006Assignee: Intelligent Optical Systems, Inc.Inventors: Robert A. Lieberman, Claudio O. Egalon
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Patent number: 7002686Abstract: Apparatus for acquiring an image of a specimen comprising a cassette having an optical portion holding a specimen array on a TIR surface and being removably matable to a processing portion having a polarized light beam source and a processing polarization-sensitive portion to image the spatially distributed charges in polarization of the specimen array. In one form the array optical portion comprises a transparent slide having a bottom surface with first and second gratings located to direct polarized light to the TIR surface and to direct light reflected by that (TIR) surface to an imager, respectively. The apparatus may include a flow cell integral with the optical portion as well as means for selecting the direction and wavelength of the polarized light.Type: GrantFiled: December 22, 2004Date of Patent: February 21, 2006Assignee: Maven Technologies LLCInventors: Robert A. Lieberman, William Rassman, Lothar U. Kempen, David Ralin
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Patent number: 6954142Abstract: A sensor system in which a sensor suite has a locally located field sensing unit (FSU) that converts and evaluates sensor information using sensor fusion algorithms and is thereby able to send qualitative low-bandwidth, low power usage signals to a remote command post.Type: GrantFiled: October 31, 2001Date of Patent: October 11, 2005Inventors: Robert A. Lieberman, Thomas C. Forrester
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Patent number: 6882420Abstract: Apparatus for acquiring an image of a specimen comprising a cassette having an optical portion holding a specimen array on a TIR surface and being removably matable to a processing portion having a polarized light beam source and a processing polarization-sensitive portion to image the spatially distributed charges in polarization of the specimen array. In one form the array optical portion comprises a transparent slide having a bottom surface with first and second gratings located to direct polarized light to the TIR surface and to direct light reflected by that (TIR) surface to an imager, respectively. The apparatus may include a flow cell integral with the optical portion as well as means for selecting the direction and wavelength of the polarized light.Type: GrantFiled: May 7, 2004Date of Patent: April 19, 2005Assignee: Maven Technologies, LLCInventors: William Rassman, David Ralin, Robert A. Lieberman, Lothar U. Kempen
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Patent number: 6833920Abstract: Apparatus for acquiring an image of a specimen comprising a cassette having an optical portion holding a specimen array on a TIR surface and being removably matable to a processing portion having a polarized light beam source and a processing polarization-sensitive portion to image the spatially distributed charges in polarization of the specimen array. In one form the array optical portion comprises a transparent slide having a bottom surface with first and second gratings located to direct polarized light to the TIR surface and to direct light reflected by that (TIR) surface to an imager, respectively. The apparatus may include a flow cell integral with the optical portion as well as means for selecting the direction and wavelength of the polarized light.Type: GrantFiled: January 12, 2002Date of Patent: December 21, 2004Assignee: Maven Technologies LLCInventors: William Rassman, David Ralin, Robert A. Lieberman, Lothar U. Kempen
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Publication number: 20040207846Abstract: Apparatus for acquiring an image of a specimen comprising a cassette having an optical portion holding a specimen array on a TIR surface and being removably matable to a processing portion having a polarized light beam source and a processing polarization-sensitive portion to image the spatially distributed charges in polarization of the specimen array. In one form the array optical portion comprises a transparent slide having a bottom surface with first and second gratings located to direct polarized light to the TIR surface and to direct light reflected by that (TIR) surface to an imager, respectively. The apparatus may include a flow cell integral with the optical portion as well as means for selecting the direction and wavelength of the polarized light.Type: ApplicationFiled: May 7, 2004Publication date: October 21, 2004Inventors: William Rassman, David Ralin, Robert A. Lieberman, Lothar U. Kempen
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Patent number: 6802188Abstract: A partially modified photosensitive monolithic oxide glass apparatus formed through photolithographic imaging. The apparatus may be either a volume apparatus or a layer apparatus. Both types of apparatus may be used to diffuse light in predetermined directions or shapes. The monolithic oxide glass apparatus is capable of withstanding temperatures well beyond glass transition temperatures of plastic light shaping devices and can be formed in convex or concave surfaces through conventionally molding grinding or polishing techniques and can be coated by hot-coating techniques.Type: GrantFiled: July 28, 2000Date of Patent: October 12, 2004Assignee: Physical Optics CorporationInventors: Robert A. Lieberman, Edgar A. Mendoza, David Mintzer
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Patent number: 6714711Abstract: Methods and apparatus for producing an optical waveguide illuminator are disclosed. By controlling the propagation of light in the core and cladding regions of the waveguide, distributed light emission along a length of an optical fiber or along a planar waveguide surface can be achieved by varying the core/cladding refractive index ratio and introducing light scattering centers in the core.Type: GrantFiled: October 10, 2000Date of Patent: March 30, 2004Assignee: Optech Ventures, LLCInventors: Robert A. Lieberman, Edgar A. Mendoza, Yevgeniy Durets
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Patent number: 6667807Abstract: A surface plasmon resonance device includes a metal thin film, a dielectric thin film on an optical member and, in addition, an electro-optically active thin film either between the metal thin film and the dielectric thin film or between the optical member and the metal thin film. The electro-optically active thin film is subject to a voltage which is varied to tune the resonance condition of the device.Type: GrantFiled: March 30, 2001Date of Patent: December 23, 2003Assignee: Optech Ventures, LLCInventor: Robert A. Lieberman
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Patent number: 6650810Abstract: A tunable optical filter for simulating the waveband spectrums of selected substances. The filter includes an optical waveguide with a core material for transmitting light energy and a nominal core refractive index for the core material. Predetermined periodic variations are formed in the core material of the optical waveguide between the input and output ends that alter the core refractive index of the waveguide at the location of the periodic variations. Depending upon the periodic variations, the waveguide produces a predetermined reference waveband spectrum output that matches the waveband spectrum of a selected substance. A modulator is coupled to the waveguide to selectively modulate the periodic variations to intermittently shift the reference waveband spectrum output to fine tune the filter and reduce signal noise.Type: GrantFiled: August 15, 2000Date of Patent: November 18, 2003Assignee: Physical Optics CorporationInventors: Robert A. Lieberman, John D Prohaska, Lothar U Kempen