Elevator car door locking device and elevator equipment
US-12479701-B2 · Nov 25, 2025 · US
Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position
Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position · 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 | B66B13/16 |
| Official title | Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position |
| Display label | Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position |
| Total patents | 63 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 1 |
| 2017 | 7 |
| 2018 | 13 |
| 2019 | 9 |
| 2020 | 8 |
| 2021 | 6 |
| 2022 | 6 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 5 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Unlocking device and unlocking method of elevator landing door, and elevator system
US-2025326607-A1 · Oct 23, 2025 · US
Distance sensor device for monitoring a lock clearance of an elevator door locking device
US-2025011127-A1 · Jan 9, 2025 · US
Monitoring elevator door operation
US-2024166471-A1 · May 23, 2024 · US
Elevator car door locking device and elevator equipment
US-2024158206-A1 · May 16, 2024 · US
Component misalignment sensing
US-2023202798-A1 · Jun 29, 2023 · US
Elevator inspection operation device
US-11623843-B2 · Apr 11, 2023 · US
Elevator access systems for elevators
US-11542119-B2 · Jan 3, 2023 · US
Elevator systems
US-2022380175-A1 · Dec 1, 2022 · US
Access door arrangement of an elevator shaft
US-11505433-B2 · Nov 22, 2022 · US
Automatic elevator inspection systems and methods
US-11440769-B2 · Sep 13, 2022 · US
Device for unlocking a landing door
US-11390491-B2 · Jul 19, 2022 · US
Method and elevator arrangement
US-2022127107-A1 · Apr 28, 2022 · US
Elevator car apron
US-11235952-B2 · Feb 1, 2022 · US
Elevator access systems for elevators
US-11124385-B2 · Sep 21, 2021 · US
Elevator lintel door lock safety devices
US-11091351-B2 · Aug 17, 2021 · US
Blocking device
US-11008196-B2 · May 18, 2021 · US
Landing door lock failsafe protection device
US-10914097-B2 · Feb 9, 2021 · US
Elevator landing door lock safety system
US-10889466-B2 · Jan 12, 2021 · US
Mechanical hoistway access control device
US-10889465-B2 · Jan 12, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B66B13/16?
- CPC B66B13/16 is the Cooperative Patent Classification code for “Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position.”
- How many patents are filed under CPC B66B13/16 (Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position)?
- Our database includes 63 publications tagged with this CPC code.
- Is patent activity under CPC B66B13/16 growing?
- Publication counts under this code: 2 in 2024 vs 5 in 2025 (latest complete years).