Patents by Inventor David M. Barnes

David M. Barnes 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: 8975443
    Abstract: The disclosure is directed to: (a) phosphacycle ligands; (b) catalyst compositions comprising phosphacycle ligands; and (c) methods of using such phosphacycle ligands and catalyst compositions in bond forming reactions.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: March 10, 2015
    Assignee: AbbVie Inc.
    Inventors: Shashank Shekhar, Thaddeus S. Franczyk, David M. Barnes, Travis B. Dunn, Anthony R. Haight, Vincent S. Chan
  • Patent number: 8969569
    Abstract: A crystalline form of a drug, ways to make it, compositions containing it and methods of treatment of diseases and inhibition of adverse physiological events using it are disclosed.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: March 3, 2015
    Assignee: AbbVie Inc.
    Inventors: Geoff G. Z. Zhang, Michael F. Bradley, David M. Barnes, Rodger Henry
  • Patent number: 8950374
    Abstract: Rib configurations for increasing the structural efficiency of a cylinder head, which relates to a peak combustion pressure capability of the cylinder head. In addition to increasing peak combustion pressure, the rib configurations may also improve sealing of the cylinder head and may improve the durability of an associated cylinder head gasket.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: February 10, 2015
    Assignee: Cummins Intellectual Property, Inc.
    Inventors: Jeffrey D. Jones, Vipin Prabhakaran, David M. Barnes
  • Patent number: 8927723
    Abstract: A process for making 1-(6-amino-3,5-difluoropyridin-2-yl)-8-chloro-6-fluoro-7-(3-hydroxyazetidin-1-yl)-4-oxo-1,4-dihydro-3-quinolinecarboxylic acid, and therapeutically acceptable salts thereof, and intermediates used in the process are disclosed.
    Type: Grant
    Filed: February 10, 2014
    Date of Patent: January 6, 2015
    Assignee: AbbVie, Inc.
    Inventors: Anthony Haight, David M. Barnes, Geoff G. Z. Zhang
  • Publication number: 20140371446
    Abstract: The disclosure is directed to: (a) phosphacycle ligands; (b) methods of using such phosphacycle ligands in bond forming reactions; and (c) methods of preparing phosphacycle ligands.
    Type: Application
    Filed: August 25, 2014
    Publication date: December 18, 2014
    Applicant: AbbVie Inc.
    Inventors: Shashank Shekhar, Thaddeus S. Franczyk, David M. Barnes, Travis B. Dunn, Anthony R. Haight, Vincent S. Chan
  • Patent number: 8895737
    Abstract: This disclosure is directed to: (a) processes for preparing a compound and salts thereof that, inter alia, are useful for inhibiting hepatitis C virus (HCV); (b) intermediates useful for the preparation of the compound and salts; (c) pharmaceutical compositions comprising the compound or salts; and (d) methods of use of such compositions.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: November 25, 2014
    Inventors: Shashank Shekhar, Thaddeus S. Franczyk, David M. Barnes, Travis B. Dunn, Anthony R. Haight, Vincent S. Chan
  • Patent number: 8841487
    Abstract: The disclosure is directed to: (a) phosphacycle ligands; (b) methods of using such phosphacycle ligands in bond forming reactions; and (c) methods of preparing phosphacycle ligands.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: September 23, 2014
    Assignee: AbbVie Inc.
    Inventors: Shashank Shekhar, Thaddeus S. Franczyk, David M. Barnes, Travis B. Dunn, Anthony R. Haight, Vincent S. Chan
  • Patent number: 8833324
    Abstract: An inertia assisted engine starting apparatus and method are disclosed. The apparatus includes an internal combustion engine and an accessory drive system including an accessory. The accessory includes a rotatable member. An electric motor is selectively rotationally coupled to the accessory drive system. A mechanical coupling device selectively transfers rotational kinetic energy from the accessory drive system to start the internal combustion engine.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: September 16, 2014
    Assignee: Cummins Inc.
    Inventors: John P. O'Brien, David M. Barnes
  • Patent number: 8821342
    Abstract: An accessory drive motor configuration is disclosed. One embodiment of the accessory drive motor configuration is an apparatus including an internal combustion engine having a crankshaft, wherein the crankshaft is structured to provide traction power. The apparatus further includes an accessory drive system operably coupled to a shaft. The shaft is selectively coupled to an electro-mechanical device and selectively coupled to the internal combustion engine. The shaft extends through at least a portion of the electro-mechanical device.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: September 2, 2014
    Assignee: Cummins Inc.
    Inventors: Morgan MacKenzie Andreae, David M. Barnes, Vivek Anand Sujan
  • Publication number: 20140230771
    Abstract: A nutating balance device for mitigating vibrations of an internal combustion engine having a crankshaft includes a coupler coupled to the engine crankshaft. The device also includes a weight coupled to the coupler. The coupler is configured to move the weight in sync with the crankshaft. The nutating balance device can generate variable torque pulsations or moments corresponding to torque harmonic frequencies of the internal combustion engine.
    Type: Application
    Filed: February 15, 2013
    Publication date: August 21, 2014
    Applicant: CUMMINS IP, INC.
    Inventor: David M. Barnes
  • Publication number: 20140224194
    Abstract: An engine system that includes a timing drive cavity defined by at least one of an engine block, front cover, and timing drive cover, a timing drive positioned within the timing drive cavity, and a fluid pump assembly. The fluid pump assembly includes an impeller housing, a fluid inlet port coupled to the impeller housing, and a fluid outlet port coupled to the impeller housing. At least one of the fluid inlet and fluid outlet ports is positioned at least partially within the timing drive cavity.
    Type: Application
    Filed: February 14, 2013
    Publication date: August 14, 2014
    Applicant: CUMMINS IP, INC.
    Inventor: David M. Barnes
  • Patent number: 8789502
    Abstract: A high-efficiency mechanism for variable valve actuation with increased engine architecture applicability is described. The high efficiency mechanism introduces an intermediate lever having a secondary cam profile forming a variable oscillating cam between a rotating camshaft and a rocker arm.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: July 29, 2014
    Assignee: Cummins Intellectual Property, Inc.
    Inventor: David M. Barnes
  • Publication number: 20140190433
    Abstract: A variable valve actuation system in one form includes a rocker coupled with a valve stem at one end and a cam follower at the other end. The rocker is operable to rotate about a fixed axis and the cam follower includes a set of lower rollers operable to follow one cam lobe and an upper roller operable to follow another cam lobe. A leaf spring can be used to couple the cam follower with the rocker. A cam shaft can have a nested configuration that includes an inner shaft, an intermediate tube, and an outer tube. Cam lobes can be fastened to the cam shaft by fastening through each of the inner shaft, intermediate tube, and outer tube. The cam lobes can be attached by at least two devices inserted from either side of the cam shaft and that are not inserted at least through the inner shaft.
    Type: Application
    Filed: January 23, 2014
    Publication date: July 10, 2014
    Applicant: Cummins Inc.
    Inventors: David M. Barnes, Adam C. Cecil
  • Publication number: 20140155380
    Abstract: A crystalline form of a drug, ways to make it, compositions containing it and methods of treatment of diseases and inhibition of adverse physiological events using it are disclosed.
    Type: Application
    Filed: February 7, 2014
    Publication date: June 5, 2014
    Applicant: ABBVIE INC.
    Inventors: Geoff G.Z. ZHANG, Michael F. BRADLEY, David M. BARNES, Rodger HENRY
  • Publication number: 20140155610
    Abstract: A process for making 1-(6-amino-3,5-difluoropyridin-2-yl)-8-chloro-6-fluoro-7-(3-hydroxyazetidin-1-yl)-4-oxo-1,4-dihydro-3-quinolinecarboxylic acid, and therapeutically acceptable salts thereof, and intermediates used in the process are disclosed.
    Type: Application
    Filed: February 10, 2014
    Publication date: June 5, 2014
    Applicant: AbbVie, Inc.
    Inventors: Anthony HAIGHT, David M. BARNES, Geoff G.Z. ZHANG
  • Patent number: 8707914
    Abstract: A waste heat recovery system connects a working fluid into passages formed within an internal combustion engine. The fluid passages transport the working fluid to high temperature areas of the engine, raising the temperature of the working fluid near the phase change point or above the phase change point. The heated working fluid drives an energy conversion portion located downstream from the engine. The heat absorbed by the working fluid decreases the load on an engine cooling system as well as driving an energy conversion portion, improving fuel efficiency.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: April 29, 2014
    Assignee: Cummins Intellectual Property, Inc.
    Inventor: David M. Barnes
  • Patent number: 8678116
    Abstract: An apparatus for an accessory drive configuration includes an internal combustion engine having a crankshaft which is structured to provide traction power. A torque-transmitting shaft extends through a portion of an internal combustion engine assembly, and the torque-transmitting shaft provides mechanical power to an accessory drive system. The internal combustion engine and an electric motor are operably coupled to the torque-transmitting shaft to selectively provide torque to the torque-transmitting shaft.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: March 25, 2014
    Assignee: Cummins Inc.
    Inventors: David M. Barnes, Kevin Augustin, Sr.
  • Patent number: 8667939
    Abstract: In one form a rocker is disclosed coupled with a valve stem at one end and a cam follower at the other end. The rocker is operable to rotate about a fixed axis. In one form the cam follower includes a set of lower rollers operable to follow one cam lobe and an upper roller operable to follow another cam lobe. A leaf spring can be used to couple the cam follower with the rocker. A cam shaft can have a nested configuration including an inner shaft, an intermediate tube, and an outer tube. Cam lobes can be fastened to the cam shaft in one form by fastening through each of the inner shaft, intermediate tube, and outer tube, and in another form by attaching at least two devices inserted from either side of the cam shaft and that are not inserted at least through the inner shaft.
    Type: Grant
    Filed: December 31, 2011
    Date of Patent: March 11, 2014
    Assignee: Cummins Inc.
    Inventors: David M. Barnes, Adam C. Cecil
  • Patent number: 8648093
    Abstract: A crystalline form of a drug, ways to make it, compositions containing it and methods of treatment of diseases and inhibition of adverse physiological events using it are disclosed.
    Type: Grant
    Filed: August 27, 2012
    Date of Patent: February 11, 2014
    Assignee: Abbvie Inc.
    Inventors: Geoff G. Z. Zhang, Michael F. Bradley, David M. Barnes, Rodger Henry
  • Patent number: 8648196
    Abstract: A process for making 1-(6-amino-3,5-difluoropyridin-2-yl)-8-chloro-6-fluoro-7-(3-hydroxyazetidin-1-yl)-4-oxo-1,4-dihydro-3-quinolinecarboxylic acid, and therapeutically acceptable salts thereof, and intermediates used in the process are disclosed.
    Type: Grant
    Filed: October 30, 2012
    Date of Patent: February 11, 2014
    Assignee: Abbvie Inc.
    Inventors: Anthony Haight, David M. Barnes, Geoff G. Z. Zhang