Method and system for an automatic rescue operation of an elevator car
US-12441587-B2 · Oct 14, 2025 · US
Safety devices separate from control system in case of power failure, for hydraulical lifts, e.g. braking the hydraulic jack (B66B5/16 takes precedence)
Safety devices separate from control system in case of power failure, for hydraulical lifts, e.g. braking the hydraulic jack (B66B5/16 takes precedence) · 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 | B66B5/028 |
| Official title | {Safety devices separate from control system in case of power failure, for hydraulical lifts, e.g. braking the hydraulic jack (B66B5/16 takes precedence)} |
| Display label | Safety devices separate from control system in case of power failure, for hydraulical lifts, e.g. braking the hydraulic jack (B66B5/16 takes precedence) |
| Total patents | 38 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 2 |
| 2018 | 6 |
| 2019 | 4 |
| 2020 | 6 |
| 2021 | 5 |
| 2022 | 6 |
| 2023 | 3 |
| 2024 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Remote operation of an elevator
US-12091286-B2 · Sep 17, 2024 · US
Elevator
US-2024239634-A1 · Jul 18, 2024 · US
Elevator system
US-11993489-B2 · May 28, 2024 · US
Remote operation of an elevator
US-2023391585-A1 · Dec 7, 2023 · US
Remote operation of an elevator
US-11772932-B2 · Oct 3, 2023 · US
Elevator
US-11697574-B2 · Jul 11, 2023 · US
Backup power supply for elevator
US-11511965-B2 · Nov 29, 2022 · US
Power controller configured to distinguish an intentional signal associated with a manual rescue mode from an unintentional signal associated with a short circuit
US-11469749-B2 · Oct 11, 2022 · US
Transport conveyor drive
US-11325808-B2 · May 10, 2022 · US
Elevator with safety chain overlay control unit with a safety PLC separately monitoring various safety switches for increasing a safety integrity level
US-11305965-B2 · Apr 19, 2022 · US
Method and system for an automatic rescue operation of an elevator car
US-2022048735-A1 · Feb 17, 2022 · US
Arrangement for evacuating persons from an elevator car
US-11225395-B2 · Jan 18, 2022 · US
Elevator safety monitoring system, elevator system, elevator drive unit, and method for operating an elevator
US-2021371241-A1 · Dec 2, 2021 · US
Automatic rescue and charging system for elevator drive
US-11053096-B2 · Jul 6, 2021 · US
Remote operation of an elevator
US-2021171318-A1 · Jun 10, 2021 · US
Method for performing a manual drive in an elevator after mains power-off
US-11008197-B2 · May 18, 2021 · US
Elevator system
US-2021016993-A1 · Jan 21, 2021 · US
Elevator run profile modification for smooth rescue
US-10822197-B2 · Nov 3, 2020 · US
Elevator
US-2020325000-A1 · Oct 15, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B66B5/028?
- CPC B66B5/028 is the Cooperative Patent Classification code for “Safety devices separate from control system in case of power failure, for hydraulical lifts, e.g. braking the hydraulic jack (B66B5/16 takes precedence).”
- How many patents are filed under CPC B66B5/028 (Safety devices separate from control system in case of power failure, for hydraulical lifts, e.g. braking the hydraulic jack (B66B5/16 takes precedence))?
- Our database includes 38 publications tagged with this CPC code.
- Is patent activity under CPC B66B5/028 growing?
- Publication counts under this code: 3 in 2024 vs 1 in 2025 (latest complete years).