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condensed with one naphthalene or hydrogenated naphthalene ring system

condensed with one naphthalene or hydrogenated naphthalene ring system · Cooperative Patent Classification (CPC)

Chemical and metallurgical processes, compounds, and materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeC07D319/22
Official titlecondensed with one naphthalene or hydrogenated naphthalene ring system
Display labelcondensed with one naphthalene or hydrogenated naphthalene ring system
Total patents6

Filing trend

Year-over-year patent counts classified under this CPC code.

Filing activity appears to be declining based on the most recent years.

Patents filed per year
YearPatents
20161
20171
20183
20191

Representative patents

Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.