Patents by Inventor Haresh A. Doshi

Haresh A. Doshi 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 detecting acid- and base-extractable markers
    Patent number: 5962330
    Abstract: Markers which are soluble in petroleum fuel and are extractable from petroleum fuel by either acidic aqueous solutions or basic solutions and develop a color in the presence of the extracting acidic or basic aqueous solution, are identified by passing a specimen putatively containing the marker through an acidic resin column or a basic resin column, as the case may be.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: October 5, 1999
    Assignee: Morton International, Inc.
    Inventors: Justin J. Frederico, Haresh A. Doshi