Patents by Inventor Stephen L. Parkhurst

Stephen L. Parkhurst 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).

  • Patent number: 7147822
    Abstract: The invention is a composition, device, system or method for mitigating odors or other contaminants from a target environment. The present invention relates to devices that contain a formulation for removing, in whole or in part, foul odors from the air. In certain embodiments the present invention provides odor-mitigating reagents that are delivered by means of a spray dispenser. The present invention also contemplates applications where the invention can be delivered via a foam or gel dispenser. Certain embodiments of the invention therefore particularly relate to devices such deodorizers, air fresheners and the like.
    Type: Grant
    Filed: July 7, 2003
    Date of Patent: December 12, 2006
    Assignee: SL Parkhurst Corporation
    Inventors: Stephen L. Parkhurst, Morey E. Osborn
  • Patent number: 6749805
    Abstract: A self-contained foul air eliminator comprises a housing with an intake port an impeller, a converter, and an exhaust port. The converter includes an oxidizing agent and an aqueous solution of a promoter. The eliminator is typically portable to eliminate malodors foul air from a toilet or another environment. The device is powered by a battery or a household current.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: June 15, 2004
    Assignee: S L Parkhurst Corporation
    Inventors: Stephen L. Parkhurst, Morey E. Osborn
  • Publication number: 20030082082
    Abstract: A self-contained foul air eliminator comprises a housing with an intake port an impeller, a converter, and an exhaust port. The converter includes an oxidizing agent and an aqueous solution of a promoter. The eliminator is typically portable to eliminate malodors foul air from a toilet or another environment. The device is powered by a battery or a household current.
    Type: Application
    Filed: October 28, 2002
    Publication date: May 1, 2003
    Applicant: SL Parkhurst Corporation
    Inventors: Stephen L. Parkhurst, Morey E. Osborn
  • Patent number: 6528014
    Abstract: A converter for transforming malodorous components of foul air comprises a porous layer having an oxidizing agent and an aqueous solution of a promoter. The promoter is preferably a water-soluble ethylene oxide or propylene oxide adduct. The layer is typically used in a gas-handling system to eliminate the foul air from a toilet or a bedpan. The layer can be used alone or with a second layer of activated charcoal. A Lewis acid and/or a Lewis base can be also used with the converter.
    Type: Grant
    Filed: September 13, 2000
    Date of Patent: March 4, 2003
    Assignee: SL Parkhurst Corporation
    Inventors: Stephen L. Parkhurst, Morey E. Osborn