Patents by Inventor Stephen Russell Allen

Stephen Russell Allen 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).

  • Stem guide system
    Patent number: 10221651
    Abstract: A system including a stem guide system, including a stem guide, and a sleeve coupled to the stem guide, wherein the sleeve is configured to rest within a valve stem groove of a valve stem.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: March 5, 2019
    Assignee: Cameron International Corporation
    Inventors: Stephen Russell Allen, John David Williams
  • STEM GUIDE SYSTEM
    Publication number: 20180094505
    Abstract: A system including a stem guide system, including a stem guide, and a sleeve coupled to the stem guide, wherein the sleeve is configured to rest within a valve stem groove of a valve stem.
    Type: Application
    Filed: October 9, 2017
    Publication date: April 5, 2018
    Inventors: Stephen Russell Allen, John David Williams
  • Stem guide system
    Patent number: 9784068
    Abstract: A system including a stem guide system, including a stem guide, and a sleeve coupled to the stem guide, wherein the sleeve is configured to rest within a valve stem groove of a valve stem.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: October 10, 2017
    Assignee: Cameron International Corporation
    Inventors: Stephen Russell Allen, John David Williams
  • STEM GUIDE SYSTEM
    Publication number: 20160097256
    Abstract: A system including a stem guide system, including a stem guide, and a sleeve coupled to the stem guide, wherein the sleeve is configured to rest within a valve stem groove of a valve stem.
    Type: Application
    Filed: October 1, 2014
    Publication date: April 7, 2016
    Inventors: Stephen Russell Allen, John David Williams