with optical {or acoustical} auxiliary devices

with optical {or acoustical} auxiliary devices · Cooperative Patent Classification (CPC)

Computing, optics, measurement, and control technologies.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeG01R23/17
Official titlewith optical {or acoustical} auxiliary devices
Display labelwith optical {or acoustical} auxiliary devices
Total patents58

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
20153
20161
20175
20187
20195
20208
202111
20224
20234
20246
20254

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 G01R23/17?
CPC G01R23/17 is the Cooperative Patent Classification code for “with optical {or acoustical} auxiliary devices.”
How many patents are filed under CPC G01R23/17 (with optical {or acoustical} auxiliary devices)?
Our database includes 58 publications tagged with this CPC code.
Is patent activity under CPC G01R23/17 growing?
Publication counts under this code: 6 in 2024 vs 4 in 2025 (latest complete years).