Elevator lintel door lock safety devices
US-2018370762-A1 · Dec 27, 2018 · US
Indicators
Indicators · 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 | B66B3/002 |
| Official title | {Indicators} |
| Display label | Indicators |
| Total patents | 456 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 11 |
| 2016 | 5 |
| 2017 | 23 |
| 2018 | 55 |
| 2019 | 61 |
| 2020 | 49 |
| 2021 | 64 |
| 2022 | 40 |
| 2023 | 41 |
| 2024 | 39 |
| 2025 | 53 |
| 2026 | 15 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hand detection for elevator operation
US-2018354746-A1 · Dec 13, 2018 · US
Elevator system device with authorized access control
US-2018327216-A1 · Nov 15, 2018 · US
Elevator system
US-2018327217-A1 · Nov 15, 2018 · US
Visual status indicator for door and lock state
US-2018282117-A1 · Oct 4, 2018 · US
Method and device for generating control data for controlling an elevator system by monitoring a thermal image of an operating surface
US-2018282116-A1 · Oct 4, 2018 · US
Elevator overtravel testing systems and methods
US-2018282120-A1 · Oct 4, 2018 · US
User management of door and elevator access control
US-2018282114-A1 · Oct 4, 2018 · US
Wire bridge monitoring system
US-2018273344-A1 · Sep 27, 2018 · US
Elevator safety system and method of monitoring an elevator system
US-2018237261-A1 · Aug 23, 2018 · US
Elevator with a safety arrangement and method for creating a safe working space in the upper part of the elevator shaft
US-2018229966-A1 · Aug 16, 2018 · US
Elevator control system
US-2018186595-A1 · Jul 5, 2018 · US
Elevator dynamic displays for messaging and communication
US-10011460-B2 · Jul 3, 2018 · US
Display system and gate device
US-2018182213-A1 · Jun 28, 2018 · US
Control panel with accessibility wheel
US-2018127234-A1 · May 10, 2018 · US
Elevator virtual hall call panel systems and methods of operation
US-2018111792-A1 · Apr 26, 2018 · US
Secondary car operating panel for elevator cars
US-2018086595-A1 · Mar 29, 2018 · US
Group coordination of elevators within a building for occupant evacuation
US-2018086598-A1 · Mar 29, 2018 · US
Elevator safety arrangement having earth fault detection
US-2018057308-A1 · Mar 1, 2018 · US
Arrangement for the allocation of destination calls
US-2018016116-A1 · Jan 18, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B66B3/002?
- CPC B66B3/002 is the Cooperative Patent Classification code for “Indicators.”
- How many patents are filed under CPC B66B3/002 (Indicators)?
- Our database includes 456 publications tagged with this CPC code.
- Is patent activity under CPC B66B3/002 growing?
- Publication counts under this code: 39 in 2024 vs 53 in 2025 (latest complete years).