What is CPC A01K89/05?

CPC A01K89/05 is the Cooperative Patent Classification code for “Brakes connected to the spool by one-way clutch.”

How many patents are filed under CPC A01K89/05 (Brakes connected to the spool by one-way clutch)?

Our database includes 41 publications tagged with this CPC code.

Publication counts under this code: 8 in 2024 vs 3 in 2025 (latest complete years).

Brakes connected to the spool by one-way clutch · Cooperative Patent Classification (CPC)

Agriculture, food, personal care, health, and life sciences.

Mapped technology topics for this CPC code.

CPC classification statistics
Metric	Value
CPC code	A01K89/05
Official title	{Brakes connected to the spool by one-way clutch}
Display label	Brakes connected to the spool by one-way clutch
Total patents	41

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 A01K89/05?: CPC A01K89/05 is the Cooperative Patent Classification code for “Brakes connected to the spool by one-way clutch.”
How many patents are filed under CPC A01K89/05 (Brakes connected to the spool by one-way clutch)?: Our database includes 41 publications tagged with this CPC code.
Is patent activity under CPC A01K89/05 growing?: Publication counts under this code: 8 in 2024 vs 3 in 2025 (latest complete years).