Exposure-making shutters; Diaphragms

Exposure-making shutters; Diaphragms · 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 codeG03B9/00
Official titleExposure-making shutters; Diaphragms
Display labelExposure-making shutters; Diaphragms
Total patents56

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
20154
20167
20172
20187
20195
202016
20215
20222
20233
20245

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 G03B9/00?
CPC G03B9/00 is the Cooperative Patent Classification code for “Exposure-making shutters; Diaphragms.”
How many patents are filed under CPC G03B9/00 (Exposure-making shutters; Diaphragms)?
Our database includes 56 publications tagged with this CPC code.
Is patent activity under CPC G03B9/00 growing?
Publication counts under this code: 3 in 2023 vs 5 in 2024 (latest complete years).