[Enzymes as a subject of invention].

A patent-legal situation is analyzed which has arisen in the world in connection with the problem on protection of native enzymes as objects of invention. The objects under study are shown to correspond to the demands of novelty, essential distinctions and positive practical effect which are made by the legislation of the USSR to inventions. Possibility of legal protection of enzymes as substances with unstated structure obtained microbiologically is determined in terms of acting standard statements. A set of characters necessary and sufficient for recognition of enzymes and substantiation of their novelty is suggested for characteristics of enzymes in original papers and patent documents. General approaches to optimization of native enzyme examination for the novelty and essential characteristics are developed.