Patents by Inventor James P. MacKay

James P. MacKay 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).

  • GOLF SHAFT
    Publication number: 20210275885
    Abstract: A multi-material golf shaft having a butt portion joined to a tip portion and possessing unique relationships, including rigidity relationships, which provide beneficial performance characteristics.
    Type: Application
    Filed: May 26, 2021
    Publication date: September 9, 2021
    Inventors: Byron H. Adams, Blair M. Philip, Jeffrey T. Halstead, Robert E. Stephens, Trever M. Napier, James P. MacKay
  • Golf shaft
    Patent number: 11045700
    Abstract: A multi-material golf shaft having a butt portion joined to a tip portion and possessing unique relationships, including rigidity relationships, which provide beneficial performance characteristics.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: June 29, 2021
    Assignee: BREAKTHROUGH GOLF TECHNOLOGY, LLC
    Inventors: Byron H. Adams, Blair M. Philip, Jeffrey T. Halstead, Robert E. Stephens, Trever M. Napier, James P. MacKay
  • GOLF SHAFT
    Publication number: 20210001192
    Abstract: A multi-material golf shaft having a butt portion joined to a tip portion and possessing unique relationships, including rigidity relationships, which provide beneficial performance characteristics.
    Type: Application
    Filed: August 3, 2020
    Publication date: January 7, 2021
    Inventors: Byron H. Adams, Blair M. Philip, Jeffrey T. Halstead, Robert E. Stephens, Trever M. Napier, James P. MacKay
  • Golf shaft
    Patent number: 10729952
    Abstract: A multi-material golf shaft having a butt portion joined to a tip portion and possessing unique relationships, including rigidity relationships, which provide beneficial performance characteristics including improved stability.
    Type: Grant
    Filed: January 2, 2019
    Date of Patent: August 4, 2020
    Assignee: BREAKTHROUGH GOLF TECHNOLOGY, LLC
    Inventors: Byron H. Adams, Blair M. Philip, Jeffrey T. Halstead, Robert E. Stephens, Trever M. Napier, James P. MacKay
  • Golf Shaft
    Publication number: 20190232130
    Abstract: A multi-material golf shaft having a butt portion joined to a tip portion and possessing unique relationships, including rigidity relationships, which provide beneficial performance characteristics including improved stability.
    Type: Application
    Filed: January 2, 2019
    Publication date: August 1, 2019
    Inventors: Byron H. Adams, Blair M. Philip, Jeffrey T. Halstead, Robert E. Stephens, Trever M. Napier, James P. MacKay
  • Golf shaft
    Patent number: 10213666
    Abstract: A golf shaft having a butt portion joined to a tip portion by a coupler and possessing unique relationships, including rigidity relationships, which provide beneficial performance characteristics including improved stability.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: February 26, 2019
    Assignee: BREAKTHROUGH GOLF TECHNOLOGY LLC
    Inventors: Byron H. Adams, Blair M. Philip, Jeffrey T. Halstead, Robert E. Stephens, Trever M. Napier, James P. MacKay
  • Golf shaft having contrasting regions
    Patent number: D838327
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: January 15, 2019
    Assignee: BREAKTHROUGH GOLF TECHNOLOGY LLC
    Inventors: Byron H. Adams, Blair M. Philip, Jeffrey T. Halstead, Robert E. Stephens, Trever M. Napier, James P. MacKay