What is CPC E05C9/045?

CPC E05C9/045 is the Cooperative Patent Classification code for “with inclined surfaces, e.g. spiral or helicoidal.”

How many patents are filed under CPC E05C9/045 (with inclined surfaces, e.g. spiral or helicoidal)?

Our database includes 27 publications tagged with this CPC code.

Publication counts under this code: 3 in 2024 vs 6 in 2025 (latest complete years).

with inclined surfaces, e.g. spiral or helicoidal · Cooperative Patent Classification (CPC)

Building, mining, and civil engineering structures.

Mapped technology topics for this CPC code.

CPC classification statistics
Metric	Value
CPC code	E05C9/045
Official title	{with inclined surfaces, e.g. spiral or helicoidal}
Display label	with inclined surfaces, e.g. spiral or helicoidal
Total patents	27

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

Filing activity over the last five years is growing.

Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.

Answers are generated from the same data shown on this page.

What is CPC E05C9/045?: CPC E05C9/045 is the Cooperative Patent Classification code for “with inclined surfaces, e.g. spiral or helicoidal.”
How many patents are filed under CPC E05C9/045 (with inclined surfaces, e.g. spiral or helicoidal)?: Our database includes 27 publications tagged with this CPC code.
Is patent activity under CPC E05C9/045 growing?: Publication counts under this code: 3 in 2024 vs 6 in 2025 (latest complete years).