Passive transducers, e.g. using surface acoustic waves, backscatter technology or pressure sensitive resonators (near field passive transducers B60C23/0428)

Passive transducers, e.g. using surface acoustic waves, backscatter technology or pressure sensitive resonators (near field passive transducers B60C23/0428) · Cooperative Patent Classification (CPC)

Separating, mixing, shaping, printing, and transporting materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeB60C23/0449
Official title{Passive transducers, e.g. using surface acoustic waves, backscatter technology or pressure sensitive resonators (near field passive transducers B60C23/0428)}
Display labelPassive transducers, e.g. using surface acoustic waves, backscatter technology or pressure sensitive resonators (near field passive transducers B60C23/0428)
Total patents39

Filing trend

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

Filing activity over the last five years is rapidly growing.

Patents filed per year
YearPatents
20153
20161
20172
20185
20204
20213
20223
20235
20245
20258

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 B60C23/0449?
CPC B60C23/0449 is the Cooperative Patent Classification code for “Passive transducers, e.g. using surface acoustic waves, backscatter technology or pressure sensitive resonators (near field passive transducers B60C23/0428).”
How many patents are filed under CPC B60C23/0449 (Passive transducers, e.g. using surface acoustic waves, backscatter technology or pressure sensitive resonators (near field passive transducers B60C23/0428))?
Our database includes 39 publications tagged with this CPC code.
Is patent activity under CPC B60C23/0449 growing?
Publication counts under this code: 5 in 2024 vs 8 in 2025 (latest complete years).