Patents by Inventor Robert R. Hardman

Robert R. Hardman 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).

  • Method for reducing unburned carbon in low NOx boilers
    Patent number: 6164221
    Abstract: The invention provides a method which includes the step of locating a burner of a low NOx boiler that produces a disproportionately high quantity of unburned carbon. The air-to-fuel ratio at the burner is then increased to decrease the percentage of unburned carbon attributable to the burner. The air-to-fuel ratio at a second burner of the low NOx boiler is reduced to maintain a substantially constant total air-to-fuel ratio in the low NOx boiler.
    Type: Grant
    Filed: December 30, 1998
    Date of Patent: December 26, 2000
    Assignee: Electric Power Research Institute, Inc.
    Inventors: Anthony Facchiano, Richard A. Brown, Wate T. Bakker, Robert R. Hardman
  • Handguard for a firearm
    Patent number: D1026157
    Type: Grant
    Filed: September 29, 2021
    Date of Patent: May 7, 2024
    Assignee: OHIO ORDNANCE WORKS, INC.
    Inventors: Robert W. Landies, III, Brent A. Susnik, Alex R. Cooper, Thomas M. Hardman