Patent ID: 6108617
Filing Date: 2000-08-22
Classification: G06Q,Y02P

Abstract:
A method for controlling a chemical for use in a process, the method of comprising the steps of:defining a plurality of control points, at least one of said control points used to control the process;assigning a process identification number (PIN) to the process;identifying a plurality of operators, at least one of said operators assigned to said at least one of said control points;allowing only said at least one of said operators to inventory the chemical to said at least one of said control points for the use in the process;allowing only said at least one of said operators to issue the chemical from said inventory for the use in the process;sensing the use of the chemical in the process at a plurality of use points;sensing disposal of the chemical in the process at a plurality of disposal points; andremoving the chemical from said inventory in response to said sensing steps.