Patents by Inventor Robert Cai

Robert Cai 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).

  • Conversion path performance measures and reports
    Patent number: 12211065
    Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for providing conversion path performance measures and reports. In one aspect, user interaction data are obtained, were the user interaction data specify user interactions for a plurality of conversions. User interactions that are associated with each conversion are selected from the user interaction data, where the associated user interactions for each conversion are user interactions with a converting user during the conversion cycle for the conversion. Using the user interaction data for the selected user interactions, a quantity of user interactions that are associated with each conversion and occurred during the conversion cycle for the conversion are determined. In turn, conversion path performance measures are computed and reports specifying the conversion path performance measures are generated.
    Type: Grant
    Filed: February 20, 2024
    Date of Patent: January 28, 2025
    Assignee: Google LLC
    Inventors: Sissie Ling-le Hsiao, Chao Cai, Eric W. Ewald, Cameron M. Tangney, Robert A. Walker, II, Japjit Tulsi, Ming Lei, Zhimin He
  • Method and apparatus for erecting a drilling rig
    Patent number: 9650840
    Abstract: A method for erecting a drilling rig and an apparatus therefor having a mast, a base, a floor support, legs arranged between the base and the floor support, a primary lifting ram in engagement with the mast, and a floor support lifting ram, is disclosed. The method involves raising the mast with the primary lifting ram, raising the floor support with the floor support lifting ram to an intermediate height, engaging the primary lifting ram with the floor support and raising the floor support from the intermediate height to full working height with the mast lifting ram.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: May 16, 2017
    Assignee: NATIONAL OILWELL VARCO, L.P.
    Inventors: Rui Cheng, Robert Cai
  • METHOD AND APPARATUS FOR ERECTING A DRILLING RIG
    Publication number: 20160312543
    Abstract: A method for erecting a drilling rig and an apparatus therefor having a mast, a base, a floor support, legs arranged between the base and the floor support, a primary lifting ram in engagement with the mast, and a floor support lifting ram, is disclosed. The method involves raising the mast with the primary lifting ram, raising the floor support with the floor support lifting ram to an intermediate height, engaging the primary lifting ram with the floor support and raising the floor support from the intermediate height to full working height with the mast lifting ram.
    Type: Application
    Filed: April 27, 2015
    Publication date: October 27, 2016
    Inventors: Rui Cheng, Robert Cai