Method and apparatus for detecting automatic closing function of a floor door
US-2025145415-A1 · May 8, 2025 · US
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electrical
electrical · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B66B13/185 |
| Official title | {electrical} |
| Display label | electrical |
| Total patents | 12 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 4 |
| 2021 | 2 |
| 2022 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Visual status indicator for door and lock state
US-11465878-B2 · Oct 11, 2022 · US
Automated elevator safety chain diagnosis
US-11390487-B2 · Jul 19, 2022 · US
Elevator door control for deboarding passengers in multi-door elevators
US-11174128-B2 · Nov 16, 2021 · US
System for controlling a service access associated with an elevator car
US-2021269284-A1 · Sep 2, 2021 · US
Elevator system landing door unlocking mechanism
US-2020283270-A1 · Sep 10, 2020 · US
Method and a system for detecting a malfunction of an elevator system
US-2020140235-A1 · May 7, 2020 · US
Automated elevator safety chain diagnosis
US-2020062543-A1 · Feb 27, 2020 · US
Elevator door control for deboarding passengers in multi-door elevators
US-2020039795-A1 · Feb 6, 2020 · US
Hoistway door locking system and method of controlling access to an elevator shaft
US-10221044-B2 · Mar 5, 2019 · US
Visual status indicator for door and lock state
US-2018282117-A1 · Oct 4, 2018 · US
Hoistway door locking system and method of controlling access to an elevator shaft
US-2017210600-A1 · Jul 27, 2017 · US