Patents by Inventor David A. Luft

David A. Luft 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).

  • Re-closable coil activated frack sleeve
    Patent number: 10294754
    Abstract: A bottom hole assembly for performing a borehole treatment has a plurality of ported valve housings where the housings have an assembly of shifting sleeves. The first sleeve is shifted uphole to open the port in the housing and lock the first sleeve in the ports open position. A second sleeve in the same housing is shifted in the same direction as the first sleeve to close the ports in the housing. The second sleeve has profiles for shifting it up to close the housing ports and back down to reopen the housing ports after closing them.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: May 21, 2019
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: Jeffrey B. Koch, David A. Luft, Edward A. Rapin
  • Re-closable Coil Activated Frack Sleeve
    Publication number: 20180266212
    Abstract: A bottom hole assembly for performing a borehole treatment has a plurality of ported valve housings where the housings have an assembly of shifting sleeves. The first sleeve is shifted uphole to open the port in the housing and lock the first sleeve in the ports open position. A second sleeve in the same housing is shifted in the same direction as the first sleeve to close the ports in the housing. The second sleeve has profiles for shifting it up to close the housing ports and back down to reopen the housing ports after closing them.
    Type: Application
    Filed: March 16, 2017
    Publication date: September 20, 2018
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Jeffrey B. Koch, David A. Luft, Edward A. Rapin
  • System and method for installing software
    Patent number: 8024430
    Abstract: A method for installing software includes receiving configuration information at a server and installing a server software module on the server. The method further includes transmitting a client software module associated with the server software module to a plurality of clients and initiating, from the server, installation of the client software module on the plurality of clients. Additionally, the method includes configuring the client based, at least in part, on the configuration information received by the server.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: September 20, 2011
    Assignee: Computer Associates Think, Inc.
    Inventors: David A. Luft, Sarad Thapa, Venkatesh Gandham