Patents by Inventor Lloyd Spangle

Lloyd Spangle 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).

  • Use of seeds as a cement set retarder
    Patent number: 8598091
    Abstract: A cement retarder composition, method, kit and system are herein disclosed. Seeds are added to cement to delay the setting of cement. Cement retarders are added to cement to delay the setting of the cement until it is pumped to the desired position.
    Type: Grant
    Filed: November 13, 2010
    Date of Patent: December 3, 2013
    Assignee: Catalyst Partners, Inc.
    Inventor: Lloyd Spangle
  • Use of Seeds as a Cement Set Retarder
    Publication number: 20120160490
    Abstract: A cement retarder composition, method, kit and system are herein disclosed. Seeds are added to cement to delay the setting of cement. Cement retarders are added to cement to delay the setting of the cement until it is pumped to the desired position.
    Type: Application
    Filed: November 13, 2010
    Publication date: June 28, 2012
    Inventor: Lloyd Spangle