Tandem in time, i.e. using a single spectrometer

Tandem in time, i.e. using a single spectrometer · Cooperative Patent Classification (CPC)

Electric circuits, power, telecommunications, and semiconductors.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeH01J49/0081
Official title{Tandem in time, i.e. using a single spectrometer}
Display labelTandem in time, i.e. using a single spectrometer
Total patents110

Filing trend

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

Filing activity over the last five years is rapidly declining.

Patents filed per year
YearPatents
201525
201615
201713
20189
20196
202010
20218
20228
20237
20246
20253

Representative patents

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

Frequently asked questions

Answers are generated from the same data shown on this page.

What is CPC H01J49/0081?
CPC H01J49/0081 is the Cooperative Patent Classification code for “Tandem in time, i.e. using a single spectrometer.”
How many patents are filed under CPC H01J49/0081 (Tandem in time, i.e. using a single spectrometer)?
Our database includes 110 publications tagged with this CPC code.
Is patent activity under CPC H01J49/0081 growing?
Publication counts under this code: 6 in 2024 vs 3 in 2025 (latest complete years).