Patents Assigned to HELENA CHEMICAL CORP.
  • Patent number: 9497956
    Abstract: A vegetation control system for use with chemically-based treatments includes at least one distribution apparatus and at least one reservoir mounted onto a mobile unit. Routed within a passageway or passageways in the distribution apparatus are one or more conduits. These conduits are configured to route the chemically-based treatment from the reservoir through the passageway(s) to an end of the distribution apparatus, having one or more nozzles. The vegetation control system may be used by an operator to target specific branches and other specified areas of vegetation for treatment. The distribution apparatus is mounted onto the mobile unit for application of the treatment in various areas.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: November 22, 2016
    Assignee: HELENA CHEMICAL CORP.
    Inventors: Burnett G. Dubose, Joseph R. Weakland, William R. Foy
  • Patent number: 9096476
    Abstract: The invention relates to a composition containing a stabilized solvent ketone, ester, or glycol liquid concentrate of at least one N-alkyl thiophosphoric triamide and at least one surfactant. The invention also relates to methods of using the composition.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: August 4, 2015
    Assignee: HELENA CHEMICAL CORP.
    Inventor: Johnnie R. Roberts