Patent classifications
Y
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Load children
Y10
TECHNICAL SUBJECTS COVERED BY FORMER USPC
Load children
Y10T
TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Load children
436/00
Chemistry: analytical and immunological testing
Load children Filter patents View analytics View as hierarchy
Y10T436/14
Heterocyclic carbon compound [i.e. , O, S, N, Se, Te, as only ring hetero atom]
Load children Filter patents View analytics View as hierarchy
Y10T436/147777
Plural nitrogen in the same ring [e.g., barbituates, creatinine, etc.]
Load children Filter patents View analytics View as hierarchy