Patents by Inventor Robert A. Peachey-Stoner

Robert A. Peachey-Stoner 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, composition and device for the determination of free halogens in aqueous fluids
    Patent number: 6030842
    Abstract: A sensitive and convenient unitized method, reagent composition and test device is presented for the determination of free halogens in aqueous test fluid samples. The reagent composition basically consists of an azine type indicator material and an effective amount of a benzidine type catalytic material, the combination of two materials preferably being impregnated into a matrix material for ease of handling and use.
    Type: Grant
    Filed: July 21, 1997
    Date of Patent: February 29, 2000
    Assignee: Environmental Test Systems, Inc.
    Inventor: Robert A. Peachey-Stoner