Patents by Inventor Edward C. Harper

Edward C. Harper 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).

  • Apparatus and process for removal of residue from a screen
    Publication number: 20130008834
    Abstract: An apparatus and process are provided for the removal (by washing) of residue from a screen during a screening process.
    Type: Application
    Filed: June 26, 2012
    Publication date: January 10, 2013
    Inventors: R. Kenneth Trussell, Edward C. Harper, Thomas E. Lovett
  • Apparatus and process for removal of residue from a screen
    Publication number: 20110011777
    Abstract: An apparatus and process are provided for the removal (by washing) of residue from a screen during a screening process.
    Type: Application
    Filed: July 20, 2009
    Publication date: January 20, 2011
    Inventors: R. Kenneth Trussell, Edward C. Harper, Thomas E. Lovett
  • Fragrance enhancer apparatus
    Patent number: 5567361
    Abstract: A fragrance enhancer apparatus including a hollow container with a plurality of vent holes formed thereon and with the container having a size for holding a replaceable wick fragrance material therein; an electrically energizable fan disposed within the container for forcing air therefrom through the vent holes; an electrically energizable and user adjustable timer mechanism coupled to the container for allowing the fan to be electrically energized for a period of time; a power supply mechanism for supplying electrical energy for use; and a power switch mechanism coupled between the timer mechanism and power supply mechanism for selectively energizing and de-energizing the timer mechanism.
    Type: Grant
    Filed: July 14, 1995
    Date of Patent: October 22, 1996
    Inventor: Edward C. Harper