Patents by Inventor NORTHERN TECHNOLOGIES INTERNATIONAL

NORTHERN TECHNOLOGIES INTERNATIONAL 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).

  • CORROSION MANAGEMENT SYSTEMS FOR VERTICALLY ORIENTED STRUCTURES
    Publication number: 20130186617
    Abstract: Corrosion management systems protecting against or managing corrosion of various components in generally vertically oriented structures, that can be located one or more of aboveground and underground. The corrosion management system includes a dispenser system that dispenses at least one corrosion inhibitor to the structure desired to be protected at a plurality of different vertical heights.
    Type: Application
    Filed: March 8, 2013
    Publication date: July 25, 2013
    Applicant: NORTHERN TECHNOLOGIES INTERNATIONAL CORPORATION
    Inventor: NORTHERN TECHNOLOGIES INTERNATIONAL CORPORATION
  • A LAMINATE FOR PROTECTING METALS FROM CORROSIVE GASES
    Publication number: 20130029120
    Abstract: A corrosive gas resistant laminate comprises an outer polymer layer desirably containing a volatile corrosion inhibitor therein, a corrosion gas resistant barrier layer that can be a hydrophilic polymer, and a tie layer located between said outer and said barrier layers. The various laminates have improved transmission resistance with regard to corrosive gases such as oxygen, hydrogen sulfide, and halogen gases such as chlorine. The laminates can be used to protect metal during storage and transit.
    Type: Application
    Filed: September 28, 2012
    Publication date: January 31, 2013
    Applicant: NORTHERN TECHNOLOGIES INTERNATIONAL CORPORATION
    Inventor: NORTHERN TECHNOLOGIES INTERNATIONAL