What is CPC F16H21/52?

CPC F16H21/52 is the Cooperative Patent Classification code for “for interconverting rotary motion and oscillating motion.”

How many patents are filed under CPC F16H21/52 (for interconverting rotary motion and oscillating motion)?

Our database includes 26 publications tagged with this CPC code.

Publication counts under this code: 3 in 2024 vs 1 in 2025 (latest complete years).

for interconverting rotary motion and oscillating motion · Cooperative Patent Classification (CPC)

Engines, pumps, lighting, heating, and mechanical systems.

Mapped technology topics for this CPC code.

CPC classification statistics
Metric	Value
CPC code	F16H21/52
Official title	for interconverting rotary motion and oscillating motion
Display label	for interconverting rotary motion and oscillating motion
Total patents	26

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

Filing activity over the last five years is rapidly declining.

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 F16H21/52?: CPC F16H21/52 is the Cooperative Patent Classification code for “for interconverting rotary motion and oscillating motion.”
How many patents are filed under CPC F16H21/52 (for interconverting rotary motion and oscillating motion)?: Our database includes 26 publications tagged with this CPC code.
Is patent activity under CPC F16H21/52 growing?: Publication counts under this code: 3 in 2024 vs 1 in 2025 (latest complete years).