Patents by Inventor Christopher Pollitt

Christopher Pollitt 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: 11958909
    Abstract: Provided herein are antibodies comprising non-natural amino acid residues at site-specific positions, compositions comprising the antibodies, methods of their production and methods of their use. The antibodies are useful for methods of treatment and prevention, methods of detection and methods of diagnosis.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: April 16, 2024
    Assignee: Sutro Biopharma, Inc.
    Inventors: Christopher D. Thanos, Leslie McEvoy, Gang Yin, Kalyani Penta, Ramesh Baliga, Sunil Bajad, Sonia Pollitt, Chris Murray, Alex Steiner, Avinash Gill
  • Patent number: 11466635
    Abstract: Methods and systems of controlling a dual fuel engine with at least two banks of cylinders are provided. The method may include sensing at least one of temperatures of exhaust from the at least two banks and a pressure of an intake manifold of the at least two banks, and adjusting at least one of a gas flow, a charge flow, or an air flow to one of the at least two banks to balance one of exhaust temperatures of the at least two banks and intake manifold pressures of the at least two banks.
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: October 11, 2022
    Assignee: CUMMINS INC.
    Inventors: Axel O. zur Loye, Christopher Pollitt, Timothy O. Lutz
  • Publication number: 20210404399
    Abstract: Methods and systems of controlling a dual fuel engine with at least two banks of cylinders are provided. The method may include sensing at least one of temperatures of exhaust from the at least two banks and a pressure of an intake manifold of the at least two banks, and adjusting at least one of a gas flow, a charge flow, or an air flow to one of the at least two banks to balance one of exhaust temperatures of the at least two banks and intake manifold pressures of the at least two banks.
    Type: Application
    Filed: September 13, 2021
    Publication date: December 30, 2021
    Inventors: Axel O. zur Loye, Christopher Pollitt, Timothy O. Lutz
  • Patent number: 11136932
    Abstract: Methods and systems of controlling operation of a dual fuel engine are provided, comprising determining a target exhaust temperature, sensing an actual exhaust temperature, determining an exhaust temperature deviation by comparing the actual exhaust temperature to the target exhaust temperature, comparing the exhaust temperature deviation to a threshold, adjusting at least one of an intake throttle, a wastegate, a compressor bypass valve, an exhaust throttle, a VGT and engine valve timing when the exhaust temperature deviation exceeds the threshold to control charge-flow to the engine, and continuing the adjusting until the exhaust temperature deviation is less than the threshold.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: October 5, 2021
    Assignee: Cummins Inc.
    Inventors: Axel O. zur Loye, Christopher Pollitt, Timothy P. Lutz
  • Patent number: 10711723
    Abstract: Systems and methods for controlling fuelling of dual fuel internal combustion engines are disclosed. The control techniques maximize the substitution rate of gaseous fuel for the liquid fuel by determining a target fuelling amount for the liquid fuel and then regulating an actual fuelling amount of the liquid fuel in response to engine speed and power variations and by modulating the flow rate of the gaseous fuel to the engine.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: July 14, 2020
    Assignee: Cummins Inc.
    Inventors: Robert J. Thomas, Axel Otto zur Loye, Christopher Pollitt, Robert C. Borregard
  • Patent number: 10227934
    Abstract: Apparatuses, methods and systems for controlling operation of dual fuel engines are disclosed. One embodiment is a method for controlling operation of a dual fuel engine based upon a combustion index value. The combustion index may be empirically determined to provide desired engine operation at a plurality of ratios of gaseous fuel and liquid fuel. The desired engine operation may include a number of criteria including, for examiner an engine knock criterion and/or an exhaust emissions criterion. The combustion index value may be determined during operation of the engine based upon measured, estimated or predicted engine operating parameters. The combustion index value may be utilized to interpolate between a first engine operating map for a first ratio of gaseous fuel and liquid fuel and a second engine operating map for a second ratio of gaseous fuel and liquid fuel.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: March 12, 2019
    Assignee: Cummins Inc.
    Inventors: Robert J. Thomas, Axel Otto Zur Loye, Timothy P. Lutz, Christopher Pollitt, Phanindra V. Garimella
  • Patent number: 10100723
    Abstract: The present disclosure relates to dual fuel internal combustion engines with multiple cylinder banks and/or cylinder subsets, and exhaust aftertreatment systems associated therewith. Systems and methods are disclosed that relate to engine operations involving fuelling control for fuel cutout of one or more of the cylinder banks and/or cylinder subsets in response to a fuel cutout event to increase gaseous fuel substitution on the other cylinder banks and/or cylinder subsets to satisfy the torque request and thermal management conditions of the aftertreatment system.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: October 16, 2018
    Assignee: Cummins Inc.
    Inventors: J. Steven Kolhouse, Timothy P. Lutz, C. Larry Bruner, Christopher Pollitt
  • Publication number: 20180010515
    Abstract: The present disclosure relates to dual fuel internal combustion engines with multiple cylinder banks and/or cylinder subsets, and exhaust aftertreatment systems associated therewith. Systems and methods are disclosed that relate to engine operations involving fuelling control for fuel cutout of one or more of the cylinder banks and/or cylinder subsets in response to a fuel cutout event to increase gaseous fuel substitution on the other cylinder banks and/or cylinder subsets to satisfy the torque request and thermal management conditions of the aftertreatment system.
    Type: Application
    Filed: September 22, 2017
    Publication date: January 11, 2018
    Inventors: J. Steven Kolhouse, Timothy P. Lutz, C. Larry Bruner, Christopher Pollitt
  • Publication number: 20180003118
    Abstract: Methods and systems of controlling operation of a dual fuel engine are provided, comprising determining a target exhaust temperature, sensing an actual exhaust temperature, determining an exhaust temperature deviation by comparing the actual exhaust temperature to the target exhaust temperature, comparing the exhaust temperature deviation to a threshold, adjusting at least one of an intake throttle, a wastegate, a compressor bypass valve, an exhaust throttle, a VGT and engine valve timing when the exhaust temperature deviation exceeds the threshold to control charge-flow to the engine, and continuing the adjusting until the exhaust temperature deviation is less than the threshold.
    Type: Application
    Filed: December 17, 2014
    Publication date: January 4, 2018
    Inventors: Axel O. zur Loye, Christopher Pollitt, Timothy O. Lutz
  • Publication number: 20170089273
    Abstract: Apparatuses, methods and systems for controlling operation of dual fuel engines are disclosed. One embodiment is a method for controlling operation of a dual fuel engine based upon a combustion index value. The combustion index may be empirically determined to provide desired engine operation at a plurality of ratios of gaseous fuel and liquid fuel. The desired engine operation may include a number of criteria including, for examiner an engine knock criterion and/or an exhaust emissions criterion. The combustion index value may be determined during operation of the engine based upon measured, estimated or predicted engine operating parameters. The combustion index value may be utilized to interpolate between a first engine operating map for a first ratio of gaseous fuel and liquid fuel and a second engine operating map for a second ratio of gaseous fuel and liquid fuel.
    Type: Application
    Filed: September 28, 2016
    Publication date: March 30, 2017
    Inventors: Robert J. Thomas, Axel Otto Zur Loye, Timothy P. Lutz, Christopher Pollitt, Phanindra V. Garimella
  • Publication number: 20160215723
    Abstract: Systems and methods for controlling fuelling of dual fuel internal combustion engines are disclosed. The control techniques maximize the substitution rate of gaseous fuel for the liquid fuel by determining a target fuelling amount for the liquid fuel and then regulating an actual fuelling amount of the liquid fuel in response to engine speed and power variations and by modulating the flow rate of the gaseous fuel to the engine.
    Type: Application
    Filed: April 7, 2016
    Publication date: July 28, 2016
    Inventors: Robert J. Thomas, Axel Otto zur Loye, Christopher Pollitt, Robert C. Borregard
  • Publication number: 20120069054
    Abstract: Electronic display systems include mobile units for remotely modifying a displayed image. An electronic display system can include a display surface, a processing device, a mobile unit, and an input device. The display surface can receive and display an image rendered by the processing device. The display image on the display surface can be modified through interaction of the input device and the mobile unit. The input device can sense its position relative to the mobile unit and can transmit data relating to its position to the processing device. The processing device can interpret the position data as operations on the displayed image. Accordingly, the processing device can modify the displayed image on the display surface based on interactions between the input device and the mobile unit.
    Type: Application
    Filed: May 12, 2010
    Publication date: March 22, 2012
    Applicant: Polyvision Corporation
    Inventors: Douglas MacDonald, Peter W. Hildebrandt, Dale Miller, William Christopher Pollitt, Robert J. Hawkins, Michael Boyle