Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings (door fittings, locks E05)

Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings (door fittings, locks E05) · Cooperative Patent Classification (CPC)

Separating, mixing, shaping, printing, and transporting materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeB66B13/00
Official titleDoors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings (door fittings, locks E05)
Display labelDoors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings (door fittings, locks E05)
Total patents41

Filing trend

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

Filing activity over the last five years is rapidly declining.

Patents filed per year
YearPatents
20178
20188
20194
20207
20211
20228
20234
20251

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 B66B13/00?
CPC B66B13/00 is the Cooperative Patent Classification code for “Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings (door fittings, locks E05).”
How many patents are filed under CPC B66B13/00 (Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings (door fittings, locks E05))?
Our database includes 41 publications tagged with this CPC code.
Is patent activity under CPC B66B13/00 growing?
Publication counts under this code: 4 in 2023 vs 1 in 2025 (latest complete years).