METHOD FOR LABELING CONTROLLED ENTITIES Russian patent published in 2002 - IPC

FIELD: labeling controlled entities for identifying them. SUBSTANCE: method involves introduction of identifying indicator carriers in the form of dope of elements not contained in base material. Dope is introduced in base material melt while being simultaneously dissolved throughout entire volume of base material, identifying indicators being formed by combination of composition and quantity of elements. EFFECT: enhanced reliability and ability of labeling entities for identifying them throughout entire operating period.