by addition of complex-forming compounds

by addition of complex-forming compounds · Cooperative Patent Classification (CPC)

Chemical and metallurgical processes, compounds, and materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeC02F1/683
Official title{by addition of complex-forming compounds}
Display labelby addition of complex-forming compounds
Total patents332

Filing trend

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

Filing activity over the last five years is declining.

Patents filed per year
YearPatents
201531
201630
201728
201819
201929
202028
202136
202227
202336
202436
202523
20269

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 C02F1/683?
CPC C02F1/683 is the Cooperative Patent Classification code for “by addition of complex-forming compounds.”
How many patents are filed under CPC C02F1/683 (by addition of complex-forming compounds)?
Our database includes 332 publications tagged with this CPC code.
Is patent activity under CPC C02F1/683 growing?
Publication counts under this code: 36 in 2024 vs 23 in 2025 (latest complete years).