based on chromium oxide (C04B35/047 and C04B35/105 take precedence)

based on chromium oxide (C04B35/047 and C04B35/105 take precedence) · 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 codeC04B35/12
Official titlebased on chromium oxide (C04B35/047 and C04B35/105 take precedence)
Display labelbased on chromium oxide (C04B35/047 and C04B35/105 take precedence)
Total patents78

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
20155
20168
20173
20188
20196
20203
20218
20228
202311
20246
202510
20262

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 C04B35/12?
CPC C04B35/12 is the Cooperative Patent Classification code for “based on chromium oxide (C04B35/047 and C04B35/105 take precedence).”
How many patents are filed under CPC C04B35/12 (based on chromium oxide (C04B35/047 and C04B35/105 take precedence))?
Our database includes 78 publications tagged with this CPC code.
Is patent activity under CPC C04B35/12 growing?
Publication counts under this code: 6 in 2024 vs 10 in 2025 (latest complete years).