Patents by Inventor David Leitch

David Leitch 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).

  • Tandem transfer hydrogenation and oligomerization for hydrocarbon production
    Patent number: 9944572
    Abstract: A method for coupling an alkane with an alkene using a hydrogen transfer catalyst and an alkene dimerization catalyst to form one or more higher molecular weight hydrocarbons.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: April 17, 2018
    Assignee: California Institute of Technology
    Inventors: David Leitch, Jay A. Labinger, John E. Bercaw, Yan Choi Lam
  • TANDEM TRANSFER HYDROGENATION AND OLIGOMERIZATION FOR HYDROCARBON PRODUCTION
    Publication number: 20170320792
    Abstract: A method for coupling an alkane with an alkene using a hydrogen transfer catalyst and an alkene dimerization catalyst to form one or more higher molecular weight hydrocarbons.
    Type: Application
    Filed: May 16, 2017
    Publication date: November 9, 2017
    Inventors: David Leitch, Jay A. Labinger, John E. Bercaw, Yan Choi Lam
  • Tandem transfer hydrogenation and oligomerization for hydrocarbon production
    Patent number: 9676680
    Abstract: A method for coupling an alkane with an alkene using a hydrogen transfer catalyst and an alkene dimerization catalyst to form one or more higher molecular weight hydrocarbons.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: June 13, 2017
    Assignee: California Institute of Technology
    Inventors: David Leitch, Jay A. Labinger, John E. Bercaw, Yan Choi Lam
  • TANDEM TRANSFER HYDROGENATION AND OLIGOMERIZATION FOR HYDROCARBON PRODUCTION
    Publication number: 20140200376
    Abstract: The disclosure provides for hydrocarbon production by hydrogenation and oligomerizaton and, more particularly, to catalysis of alkanes and alkenes by a tandem transfer hydrogenation and oligomerization.
    Type: Application
    Filed: January 17, 2014
    Publication date: July 17, 2014
    Applicant: California Institute of Technology
    Inventors: David Leitch, Jay A. Labinger, John E. Bercaw, Yan Choi Lam
  • Self-tailing winch conversion
    Patent number: 7055805
    Abstract: A self tailing conversion is provided for a standard winch or capstan, particularly a sailboat winch. In one embodiment a self tailer or rope jaw device is secured to the top of the winch drum, and a feeder arm is attached to the stationary center stem of the existing winch. Upward extensions are provided for the stationary center stem and for the driving shaft of the standard winch. Different methods of attachment of the self tailer are described. In a second embodiment a self tailer device is secured below the drum crown of the standard winch, assembled from sections or halves, and a feeder arm is secured to the stationary center stem.
    Type: Grant
    Filed: March 29, 2004
    Date of Patent: June 6, 2006
    Inventor: David Leitch
  • Combined food storage and display container
    Patent number: D686920
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: July 30, 2013
    Assignee: NatureSweet USA, LLC
    Inventors: Mark Cassius, Sean Frisby, David Leitch