Patents by Inventor David L. Klein

David L. Klein 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: 7851204
    Abstract: A closure for a microreactor includes a cap that is configured to be inserted into a well of the microreactor. The cap, or at least a portion of the cap, is compliant so as to form a seal with the well when the cap is inserted. The cap includes an aperture that provides an airway between the inside of the well to the external environment when the cap is inserted into the well. A porous plug is inserted in the aperture, e.g., either directly or in tube that extends through the aperture. The porous plug permits gas within the well to pass through the aperture while preventing liquids from passing through to reduce evaporation and preventing microbes from passing through to provide a sterile environment. A one-way valve may also be used to help control the environment in the well.
    Type: Grant
    Filed: June 9, 2006
    Date of Patent: December 14, 2010
    Assignee: Pall Microreactor Technologies, Inc.
    Inventors: David L. Klein, Robert D. Laidlaw, Gregory Andronaco, Stephen G. Boyer
  • Publication number: 20100219327
    Abstract: The present invention provides a high-speed Quantum Efficiency (QE) measurement device that includes at least one device under test (DUT), at least one conditioned light source with a less than 50 nm bandwidth, where a portion of the conditioned light source is monitored. Delivery optics are provided to direct the conditioned light to the DUT, a controller drives the conditioned light source in a time dependent operation, and at least one reflectance measurement assembly receives a portion of the conditioned light reflected from the DUT. A time-resolved measurement device includes a current measurement device and/or a voltage measurement device disposed to resolve a current and/or voltage generated in the DUT by each conditioned light source, where a sufficiently programmed computer determines and outputs a QE value for each DUT according to an incident intensity of at least one wavelength of from the conditioned light source and the time-resolved measurement.
    Type: Application
    Filed: March 1, 2010
    Publication date: September 2, 2010
    Inventors: Mark A. Arbore, David L. Klein, Leonid A. Vasilyev, John M. Schmidt, James E. Hudson, Gregory S. Horner
  • Publication number: 20100184199
    Abstract: A well plate and its supporting devices provide capabilities found in larger fermenters, such as controlling the oxygen level, the pH level, and temperature of the contents of the well. The well plate includes a plurality of wells, each of which can be independently controlled. Apertures in the wells, for example, provide access for a gas supply and sensors within each well provide data relating to, e.g., oxygen and/or pH level in the well. A control system controls the gas supply for each well based on the information provided by the sensor within the well. Similarly, temperature control elements, such as a heater or cooler, is placed in thermal contact with the interior of the well, as is a temperature measurement element. A control system can independently control the temperature of the contents of the well based on information provided by the temperature measurement element for that well.
    Type: Application
    Filed: March 29, 2010
    Publication date: July 22, 2010
    Applicant: MICROREACTOR TECHNOLOGIES, INC.
    Inventors: David L. Klein, Stephen G. Boyer, Gregory Andronaco
  • Patent number: 7718134
    Abstract: A well plate and its supporting devices provide capabilities found in larger fermenters, such as controlling the oxygen level, the pH level, and temperature of the contents of the well. The well plate includes a plurality of wells, each of which can be independently controlled. Apertures in the wells, for example, provide access for a gas supply and sensors within each well provide data relating to, e.g., oxygen and/or pH level in the well. A control system controls the gas supply for each well based on the information provided by the sensor within the well. Similarly, temperature control elements, such as a heater or cooler, is placed in thermal contact with the interior of the well, as is a temperature measurement element. A control system can independently control the temperature of the contents of the well based on information provided by the temperature measurement element for that well.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: May 18, 2010
    Assignee: Microreactor Technologies, Inc.
    Inventors: David L. Klein, Stephen G. Boyer, Gregory Andronaco
  • Patent number: 7713486
    Abstract: A well plate and its supporting devices provide capabilities found in larger fermenters, such as controlling the oxygen level, the pH level, and temperature of the contents of the well. The well plate includes a plurality of wells, each of which can be independently controlled. Apertures in the wells, for example, provide access for a gas supply and sensors within each well provide data relating to, e.g., oxygen and/or pH level in the well. A control system controls the gas supply for each well based on the information provided by the sensor within the well. Similarly, temperature control elements, such as a heater or cooler, is placed in thermal contact with the interior of the well, as is a temperature measurement element. A control system can independently control the temperature of the contents of the well based on information provided by the temperature measurement element for that well.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: May 11, 2010
    Assignee: Microreactor Technologies, Inc.
    Inventors: David L. Klein, Stephen G. Boyer, Gregory Andronaco
  • Publication number: 20090302831
    Abstract: Power consumption at a site is monitored. An electrical load is connected to a power source by an electrical conductor. A fuel-less energy producing device is electrically connected to a junction along the electrical conductor. A current sensor is electromagnetically coupled to the electrical conductor at a sensing position between the power source and the junction to create a current sensor signal. Sensed current and voltage signals are produced from the current sensor signal. A sensed phase relationship between the sensed signals is determined and compared to a baseline phase relationship to determine the direction of current flow through the conductor. A power source signal, based on the current flowing through the conductor at the sensing position, is created. With some examples a Rogowski type differential current sensor is used. In some examples a single current sensor is used.
    Type: Application
    Filed: June 10, 2008
    Publication date: December 10, 2009
    Applicant: SunPower Corporation
    Inventors: Frank J. Adams, David L. Klein
  • Patent number: 7624957
    Abstract: A magnetic mounting system comprises a plurality of magnets and a base. The base includes a plurality of spaced apart mounting apertures. A suspension assembly pivotally secures each magnet of the plurality of magnets to the base. The plurality of mounting apertures of the base allow for varying magnetic arrangements of the plurality of magnets thereby allowing the magnet mounting system to be mounted onto flat surfaces, curved surfaces and/or other shaped surfaces.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: December 1, 2009
    Assignee: Metal & Cable Corp., Inc.
    Inventor: David L. Klein
  • Patent number: 7622912
    Abstract: Power consumption at a site is monitored. An electrical load is connected to a power source by an electrical conductor. A fuel-less energy producing device is electrically connected to a junction along the electrical conductor. A current sensor is electromagnetically coupled to the electrical conductor at a sensing position between the power source and the junction to create a current sensor signal. Sensed current and voltage signals are produced from the current sensor signal. A sensed phase relationship between the sensed signals is determined and compared to a baseline phase relationship to determine the direction of current flow through the conductor. A power source signal, based on the current flowing through the conductor at the sensing position, is created. With some examples a Rogowski type differential current sensor is used. In some examples a single current sensor is used.
    Type: Grant
    Filed: June 10, 2008
    Date of Patent: November 24, 2009
    Assignee: Sunpower Corporation
    Inventors: Frank J. Adams, David L. Klein
  • Publication number: 20080236648
    Abstract: In one embodiment, a solar cell installation includes several groups of solar cells. Each group of solar cells has a local power point optimizer configured to control power generation of the group. The local power point optimizer may be configured to determine an optimum operating condition for a corresponding group of solar cells. The local power point optimizer may adjust the operating condition of the group to the optimum operating condition by modulating a transistor, such as by pulse width modulation, to electrically connect and disconnect the group from the installation. The local power point optimizer may be used in conjunction with a global maximum power point tracking module.
    Type: Application
    Filed: March 30, 2007
    Publication date: October 2, 2008
    Inventors: David L. Klein, Jan Mark Noworolski
  • Publication number: 20080131972
    Abstract: A well plate and its supporting devices provide capabilities found in larger fermenters, such as controlling the oxygen level, the pH level, and temperature of the contents of the well. The well plate includes a plurality of wells, each of which can be independently controlled. Apertures in the wells, for example, provide access for a gas supply and sensors within each well provide data relating to, e.g., oxygen and/or pH level in the well. A control system controls the gas supply for each well based on the information provided by the sensor within the well. Similarly, temperature control elements, such as a heater or cooler, is placed in thermal contact with the interior of the well, as is a temperature measurement element. A control system can independently control the temperature of the contents of the well based on information provided by the temperature measurement element for that well.
    Type: Application
    Filed: February 5, 2008
    Publication date: June 5, 2008
    Applicant: Gener8, Inc.
    Inventors: David L. Klein, Stephen G. Boyer, Gregory Andronaco
  • Patent number: 7374725
    Abstract: A well plate and its supporting devices provide capabilities found in larger fermenters, such as controlling the oxygen level, the pH level, and temperature of the contents of the well. The well plate includes a plurality of wells, each of which can be independently controlled. Apertures in the wells, for example, provide access for a gas supply and sensors within each well provide data relating to, e.g., oxygen and/or pH level in the well. A control system controls the gas supply for each well based on the information provided by the sensor within the well. Similarly, temperature control elements, such as a heater or cooler, is placed in thermal contact with the interior of the well, as is a temperature measurement element. A control system can independently control the temperature of the contents of the well based on information provided by the temperature measurement element for that well.
    Type: Grant
    Filed: February 11, 2004
    Date of Patent: May 20, 2008
    Assignee: Gener8, Inc.
    Inventors: David L. Klein, Stephen G. Boyer, Gregory Andronaco
  • Publication number: 20080014629
    Abstract: A closure for a microreactor includes a cap that is configured to be inserted into a well of the microreactor. The cap, or at least a portion of the cap, is compliant so as to form a seal with the well when the cap is inserted. The cap includes an aperture that provides an airway between the inside of the well to the external environment when the cap is inserted into the well. A porous plug is inserted in the aperture, e.g., either directly or in tube that extends through the aperture. The porous plug permits gas within the well to pass through the aperture while preventing liquids from passing through to reduce evaporation and preventing microbes from passing through to provide a sterile environment. A one-way valve may also be used to help control the environment in the well.
    Type: Application
    Filed: June 9, 2006
    Publication date: January 17, 2008
    Applicant: Gener8, Inc.
    Inventors: David L. Klein, Robert D. Laidlaw, Gregory Andronaco, Stephen G. Boyer
  • Patent number: 6678043
    Abstract: There is described method and apparatus to create multi-dimensional non-spatial histograms of surfaces and to compare such histograms to show whether the surfaces substantially conform to one another. This analysis is particularly applicable to comparing die on wafers to determine whether manufactured devices conform to a master or whether one die is like another.
    Type: Grant
    Filed: October 31, 2000
    Date of Patent: January 13, 2004
    Inventors: Gerard H. Vurens, David L. Klein
  • Patent number: 6515745
    Abstract: An optical measurement system for evaluating the surface of a substrate or the thickness and optical characteristics of a thin film layer overlying the substrate includes a light source for generating a light beam, a static polarizing element for polarizing the light beam emanating from the light source, and a measurement system for measuring the light reflected from the substrate location. The measurement system includes a static beam splitting element for splitting the light reflected from the substrate into s-polarized light and p-polarized light. The measurement system further includes two optical sensors for separately measuring the amplitude of the s-polarized light and the intensity of the p-polarized light. A control system analyzes the measured amplitude of the s-polarized light and the p-polarized to determine changes in the topography of substrate or changes in the thickness or optical characteristics of the thin film layer.
    Type: Grant
    Filed: October 19, 2001
    Date of Patent: February 4, 2003
    Assignee: HDI Instrumentation
    Inventors: Gerard H. Vurens, David L. Klein
  • Publication number: 20020054290
    Abstract: An optical measurement system for evaluating the surface of a substrate or the thickness and optical characteristics of a thin film layer overlying the substrate includes a light source for generating a light beam, a static polarizing element for polarizing the light beam emanating from the light source, and a measurement system for measuring the light reflected from the substrate location. The measurement system includes a static beam splitting element for splitting the light reflected from the substrate into s-polarized light and p-polarized light. The measurement system further includes two optical sensors for separately measuring the amplitude of the s-polarized light and the intensity of the p-polarized light. A control system analyzes the measured amplitude of the s-polarized light and the p-polarized to determine changes in the topography of substrate or changes in the thickness or optical characteristics of the thin film layer.
    Type: Application
    Filed: October 19, 2001
    Publication date: May 9, 2002
    Inventors: Gerard H. Vurens, David L. Klein
  • Patent number: 6134011
    Abstract: An optical measurement system for evaluating the surface of a substrate or the thickness and optical characteristics of a thin film layer overlying the substrate includes an intensity stabilized light source configured to generate a stabilized light beam, a polarizing element for polarizing the light beam emanating from the light source, and a detection system for measuring the light reflected from the substrate The measurement system includes a polarizing beam-splitter for splitting the light reflected from the substrate into s-polarized light and p-polarized light. The measurement system further includes two optical sensors for separately measuring the amplitude of the s-polarized light and the intensity of the p-polarized light and a third detector for measuring either the phase difference between the s-polarized light and the p-polarized light or the reflection angle of the light reflected from the substrate.
    Type: Grant
    Filed: September 15, 1998
    Date of Patent: October 17, 2000
    Assignee: HDI Instrumentation
    Inventors: David L. Klein, Gerard H. Vurens