PatentsDB

with a periodic structure, e.g. domain inversion, for quasi-phase-matching [QPM] (G02F1/383 takes precedence)

with a periodic structure, e.g. domain inversion, for quasi-phase-matching [QPM] (G02F1/383 takes precedence) · 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 codeG02F1/3775
Official title{with a periodic structure, e.g. domain inversion, for quasi-phase-matching [QPM] (G02F1/383 takes precedence)}
Display labelwith a periodic structure, e.g. domain inversion, for quasi-phase-matching [QPM] (G02F1/383 takes precedence)
Total patents69

Filing trend

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

Filing activity over the last five years is growing.

Patents filed per year
YearPatents
20154
20164
20176
20183
20197
20204
20214
20229
20237
202413
20255
20263

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 G02F1/3775?
CPC G02F1/3775 is the Cooperative Patent Classification code for “with a periodic structure, e.g. domain inversion, for quasi-phase-matching [QPM] (G02F1/383 takes precedence).”
How many patents are filed under CPC G02F1/3775 (with a periodic structure, e.g. domain inversion, for quasi-phase-matching [QPM] (G02F1/383 takes precedence))?
Our database includes 69 publications tagged with this CPC code.
Is patent activity under CPC G02F1/3775 growing?
Publication counts under this code: 13 in 2024 vs 5 in 2025 (latest complete years).