Electrostatic deflection

Electrostatic deflection · 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 codeH01J49/22
Official titleElectrostatic deflection
Display labelElectrostatic deflection
Total patents68

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
201511
201615
20178
201810
20192
20206
20216
20221
20232
20245
20251
20261

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 H01J49/22?
CPC H01J49/22 is the Cooperative Patent Classification code for “Electrostatic deflection.”
How many patents are filed under CPC H01J49/22 (Electrostatic deflection)?
Our database includes 68 publications tagged with this CPC code.
Is patent activity under CPC H01J49/22 growing?
Publication counts under this code: 5 in 2024 vs 1 in 2025 (latest complete years).