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).

  • Publication number: 20160263566
    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: Application
    Filed: May 25, 2016
    Publication date: September 15, 2016
    Inventors: Shashank Shekhar, Thaddeus S. Franczyk, David M. Barnes, Travis B. Dunn, Anthony R. Haight, Vincent S. Chan
  • Patent number: 9434698
    Abstract: This disclosure is directed to: (a) processes for preparing compounds and salts thereof that, inter alia, are useful for inhibiting hepatitis C virus (HCV); (b) intermediates useful for the preparation of the compounds and salts; (c) pharmaceutical compositions comprising the compounds or salts; and (d) methods of use of such compositions.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: September 6, 2016
    Assignee: ABBVIE INC.
    Inventors: Shashank Shekhar, Thaddeus S. Franczyk, David M. Barnes, Travis B. Dunn, Anthony R. Haight, Vincent S. Chan
  • Patent number: 9381508
    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 24, 2015
    Date of Patent: July 5, 2016
    Assignee: ABBVIE INC.
    Inventors: Shashank Shekhar, Thaddeus S. Franczyk, David M. Barnes, Travis B. Dunn, Anthony R. Haight, Vincent S. Chan
  • Patent number: 9347363
    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: Grant
    Filed: February 14, 2013
    Date of Patent: May 24, 2016
    Assignee: CUMMINS IP, INC.
    Inventor: David M. Barnes
  • Patent number: 9266913
    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: August 25, 2014
    Date of Patent: February 23, 2016
    Assignee: AbbVie Inc.
    Inventors: Shashank Shekhar, Thaddeus S. Franczyk, David M. Barnes, Travis B. Dunn, Anthony R. Haight, Vincent S. Chan
  • Patent number: 9255074
    Abstract: This disclosure is directed to: (a) processes for preparing compounds and salts thereof that, inter alia, are useful for inhibiting hepatitis C virus (HCV); (b) intermediates useful for the preparation of the compounds and salts; (c) pharmaceutical compositions comprising the compounds or salts; and (d) methods of use of such compositions.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: February 9, 2016
    Assignee: AbbVie Inc.
    Inventors: Shashank Shekhar, Thaddeus S. Franczyk, David M. Barnes, Travis B. Dunn, Anthony R. Haight, Vincent S. Chan
  • Publication number: 20160032791
    Abstract: A variable valve timing system and methods of operation are provided. A primary valve train driver is configured to rotate about a primary axis. A primary camshaft includes a first plurality of cams positioned on the primary camshaft. The primary camshaft is coaxially coupled to the primary valve train driver. The first plurality of cams is configured to rotate about the primary axis. A primary camshaft phaser is coaxially coupled to the primary camshaft. The primary camshaft phaser is rotatably coupled to the primary valve train driver so as to rotate the primary camshaft phaser and the primary camshaft to a first phase angle. A secondary camshaft driver on the primary axis is coaxially coupled to the primary camshaft, and a secondary camshaft phaser is coaxially coupled to the primary camshaft and coupled to the secondary camshaft driver on the primary axis.
    Type: Application
    Filed: July 31, 2014
    Publication date: February 4, 2016
    Inventors: Adam C. Cecil, David M. Barnes
  • Patent number: 9222375
    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: Grant
    Filed: January 23, 2014
    Date of Patent: December 29, 2015
    Assignee: Cummins Inc.
    Inventors: David M. Barnes, Adam C. Cecil
  • Publication number: 20150369098
    Abstract: Engine lubrication systems and methods of manufacturing and implementing engine lubrication systems and methods. In particular embodiments, an engine system includes an internal combustion engine lubrication system that utilizes a stacked configuration of a through-bolted engine to pattern around through-bolts and utilizes substantially hollow bulkheads to define a central high-pressure lubrication reservoir that minimizes lube system pressure while maintaining pressure at the extremities of the lubrication circuit. Available space is utilized within the bulkheads to provide a lubrication drainage restriction for reducing lubrication losses at engine shut-down.
    Type: Application
    Filed: March 12, 2014
    Publication date: December 24, 2015
    Applicant: CUMMINS IP, INC
    Inventor: David M. BARNES
  • Publication number: 20150369169
    Abstract: An internal combustion engine and related components and methods of manufacturing and implementing an internal combustion engine and related components. The internal combustion engine includes a base, a cylinder block mounted onto the base, a cylinder head mounted onto the block, and a structural overhead member mounted onto the cylinder head, such that the cylinder head is positioned between the cylinder block and the structural overhead member. At least one through-bolt positioned in a through-bolt opening, the through-bolt opening extending from the base to the structural overhead member through the cylinder block and the cylinder head to couple the base, the cylinder block, the cylinder head and the structural overhead member together.
    Type: Application
    Filed: March 12, 2014
    Publication date: December 24, 2015
    Applicant: CUMMINS IP, INC.
    Inventors: David M. BARNES, Jason W. MACKEY, Adam C. CECIL
  • Patent number: 9217489
    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: Grant
    Filed: February 15, 2013
    Date of Patent: December 22, 2015
    Assignee: CUMMINS IP, INC.
    Inventor: David M. Barnes
  • Publication number: 20150360215
    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: Application
    Filed: August 24, 2015
    Publication date: December 17, 2015
    Inventors: Shashank Shekhar, Thaddeus S. Franczyk, David M. Barnes, Travis B. Dunn, Anthony R. Haight, Vincent S. Chan
  • Patent number: 9200021
    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: February 2, 2015
    Date of Patent: December 1, 2015
    Assignee: AbbVie Inc.
    Inventors: Shashank Shekhar, Thaddeus S. Franczyk, David M. Barnes, Travis B. Dunn, Anthony R. Haight, Vincent S. Chan
  • Publication number: 20150275820
    Abstract: A diesel engine includes a cylinder block having a cylinder cavity defined therein. A cylinder head is coupled to the cylinder block and includes a lower semi-hemispherical surface defined thereon that defines an upper boundary of a combustion chamber. The engine includes a piston slideably disposed within the cylinder cavity that includes a piston crown having an upper surface configured to define a first portion of a lower boundary of the combustion chamber. The upper surface of the piston crown includes an axi-symmetric semi-hemispherical shape configured to correspond to the lower semi-hemispherical surface of the cylinder head.
    Type: Application
    Filed: March 24, 2015
    Publication date: October 1, 2015
    Inventors: Jason W. Mackey, David M. Barnes
  • Patent number: 9132725
    Abstract: One embodiment is a unique vehicle having a hybrid drive system. Other embodiments include unique hybrid drive systems. Still other embodiments include apparatuses, systems, devices, hardware, methods, and combinations for fluid driven actuation systems. Further embodiments, forms, features, aspects, benefits, and advantages of the present application shall become apparent from the description and figures provided herewith.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: September 15, 2015
    Assignee: Cummins Inc.
    Inventor: David M. Barnes
  • Publication number: 20150196547
    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 3, 2015
    Publication date: July 16, 2015
    Inventors: Geoff G.Z. ZHANG, Michael F. BRADLEY, David M. BARNES, Rodger HENRY
  • Publication number: 20150191437
    Abstract: This disclosure is directed to: (a) processes for preparing compounds and salts thereof that, inter alia, are useful for inhibiting hepatitis C virus (HCV); (b) intermediates useful for the preparation of the compounds and salts; (c) pharmaceutical compositions comprising the compounds or salts; and (d) methods of use of such compositions.
    Type: Application
    Filed: November 7, 2014
    Publication date: July 9, 2015
    Applicant: AbbVie Inc.
    Inventors: Shashank Shekhar, Thaddeus S. Franczyk, David M. Barnes, Travis B. Dunn, Anthony R. Haight, Vincent S. Chan
  • Publication number: 20150167581
    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: Application
    Filed: January 15, 2015
    Publication date: June 18, 2015
    Inventors: Jeffrey D. Jones, Vipin Prabhakaran, David M. Barnes
  • Publication number: 20150152126
    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: Application
    Filed: February 2, 2015
    Publication date: June 4, 2015
    Inventors: Shashank Shekhar, Thaddeus S. Franczyk, David M. Barnes, Travis B. Dunn, Anthony R. Haight, Vincent S. Chan
  • Publication number: 20150094475
    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: December 15, 2014
    Publication date: April 2, 2015
    Inventors: Anthony HAIGHT, David M. BARNES, Geoff G.Z. ZHANG