for locking switch parts by a key or equivalent removable member (switches operated by a key H01H27/00; locking by removable part of two-part coupling device H01R)

for locking switch parts by a key or equivalent removable member (switches operated by a key H01H27/00; locking by removable part of two-part coupling device H01R) · Cooperative Patent Classification (CPC)

Electric circuits, power, telecommunications, and semiconductors.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeH01H9/28
Official titlefor locking switch parts by a key or equivalent removable member (switches operated by a key H01H27/00; locking by removable part of two-part coupling device H01R)
Display labelfor locking switch parts by a key or equivalent removable member (switches operated by a key H01H27/00; locking by removable part of two-part coupling device H01R)
Total patents46

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
20165
20174
20184
20191
20205
20217
20224
20236
20245
20253
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 H01H9/28?
CPC H01H9/28 is the Cooperative Patent Classification code for “for locking switch parts by a key or equivalent removable member (switches operated by a key H01H27/00; locking by removable part of two-part coupling device H01R).”
How many patents are filed under CPC H01H9/28 (for locking switch parts by a key or equivalent removable member (switches operated by a key H01H27/00; locking by removable part of two-part coupling device H01R))?
Our database includes 46 publications tagged with this CPC code.
Is patent activity under CPC H01H9/28 growing?
Publication counts under this code: 5 in 2024 vs 3 in 2025 (latest complete years).