Revolving doors; Cages or housings therefor (turnstiles E06B11/08)

Revolving doors; Cages or housings therefor (turnstiles E06B11/08) · Cooperative Patent Classification (CPC)

Building, mining, and civil engineering structures.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeE06B3/90
Official titleRevolving doors; Cages or housings therefor (turnstiles E06B11/08)
Display labelRevolving doors; Cages or housings therefor (turnstiles E06B11/08)
Total patents35

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
20164
20171
20181
20192
20202
20214
20225
20235
20246
20255

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 E06B3/90?
CPC E06B3/90 is the Cooperative Patent Classification code for “Revolving doors; Cages or housings therefor (turnstiles E06B11/08).”
How many patents are filed under CPC E06B3/90 (Revolving doors; Cages or housings therefor (turnstiles E06B11/08))?
Our database includes 35 publications tagged with this CPC code.
Is patent activity under CPC E06B3/90 growing?
Publication counts under this code: 6 in 2024 vs 5 in 2025 (latest complete years).