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).
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Patent number: 7851204Abstract: 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: GrantFiled: June 9, 2006Date of Patent: December 14, 2010Assignee: Pall Microreactor Technologies, Inc.Inventors: David L. Klein, Robert D. Laidlaw, Gregory Andronaco, Stephen G. Boyer
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Publication number: 20100219327Abstract: 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: ApplicationFiled: March 1, 2010Publication date: September 2, 2010Inventors: Mark A. Arbore, David L. Klein, Leonid A. Vasilyev, John M. Schmidt, James E. Hudson, Gregory S. Horner
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Publication number: 20100184199Abstract: 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: ApplicationFiled: March 29, 2010Publication date: July 22, 2010Applicant: MICROREACTOR TECHNOLOGIES, INC.Inventors: David L. Klein, Stephen G. Boyer, Gregory Andronaco
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Patent number: 7718134Abstract: 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: GrantFiled: February 5, 2008Date of Patent: May 18, 2010Assignee: Microreactor Technologies, Inc.Inventors: David L. Klein, Stephen G. Boyer, Gregory Andronaco
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Patent number: 7713486Abstract: 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: GrantFiled: February 1, 2008Date of Patent: May 11, 2010Assignee: Microreactor Technologies, Inc.Inventors: David L. Klein, Stephen G. Boyer, Gregory Andronaco
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Publication number: 20090302831Abstract: 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: ApplicationFiled: June 10, 2008Publication date: December 10, 2009Applicant: SunPower CorporationInventors: Frank J. Adams, David L. Klein
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Patent number: 7624957Abstract: 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: GrantFiled: August 3, 2005Date of Patent: December 1, 2009Assignee: Metal & Cable Corp., Inc.Inventor: David L. Klein
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Patent number: 7622912Abstract: 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: GrantFiled: June 10, 2008Date of Patent: November 24, 2009Assignee: Sunpower CorporationInventors: Frank J. Adams, David L. Klein
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Publication number: 20080236648Abstract: 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: ApplicationFiled: March 30, 2007Publication date: October 2, 2008Inventors: David L. Klein, Jan Mark Noworolski
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Publication number: 20080131972Abstract: 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: ApplicationFiled: February 5, 2008Publication date: June 5, 2008Applicant: Gener8, Inc.Inventors: David L. Klein, Stephen G. Boyer, Gregory Andronaco
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Patent number: 7374725Abstract: 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: GrantFiled: February 11, 2004Date of Patent: May 20, 2008Assignee: Gener8, Inc.Inventors: David L. Klein, Stephen G. Boyer, Gregory Andronaco
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Publication number: 20080014629Abstract: 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: ApplicationFiled: June 9, 2006Publication date: January 17, 2008Applicant: Gener8, Inc.Inventors: David L. Klein, Robert D. Laidlaw, Gregory Andronaco, Stephen G. Boyer
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Patent number: 6678043Abstract: 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: GrantFiled: October 31, 2000Date of Patent: January 13, 2004Inventors: Gerard H. Vurens, David L. Klein
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Patent number: 6515745Abstract: 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: GrantFiled: October 19, 2001Date of Patent: February 4, 2003Assignee: HDI InstrumentationInventors: Gerard H. Vurens, David L. Klein
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Publication number: 20020054290Abstract: 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: ApplicationFiled: October 19, 2001Publication date: May 9, 2002Inventors: Gerard H. Vurens, David L. Klein
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Patent number: 6134011Abstract: 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: GrantFiled: September 15, 1998Date of Patent: October 17, 2000Assignee: HDI InstrumentationInventors: David L. Klein, Gerard H. Vurens