Rope sway detector with tof camera
US-2018305176-A1 · Oct 25, 2018 · US
electrical (detecting excessive speed B66B5/04 {; control of electrical motor H02P})
electrical (detecting excessive speed B66B5/04 {; control of electrical motor H02P}) · 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 | B66B1/28 |
| Official title | electrical (detecting excessive speed B66B5/04 {; control of electrical motor H02P}) |
| Display label | electrical (detecting excessive speed B66B5/04 {; control of electrical motor H02P}) |
| Total patents | 433 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 11 |
| 2017 | 33 |
| 2018 | 54 |
| 2019 | 65 |
| 2020 | 70 |
| 2021 | 52 |
| 2022 | 46 |
| 2023 | 30 |
| 2024 | 33 |
| 2025 | 25 |
| 2026 | 9 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Active damping of a hovering elevator car based on vertical oscillation of the hovering elevator car
US-10099894-B2 · Oct 16, 2018 · US
Rotation angle detector, rotary electrical machine and elevator hoisting machine
US-10103607-B2 · Oct 16, 2018 · US
Elevator system including a protective hoistway liner assembly
US-2018290862-A1 · Oct 11, 2018 · US
Elevator overtravel testing systems and methods
US-2018282120-A1 · Oct 4, 2018 · US
Power controller
US-2018198441-A1 · Jul 12, 2018 · US
Device and method for controlling elevator car movement into a transfer space associated with multiple vertical pathways
US-2018170714-A1 · Jun 21, 2018 · US
Unlocking key with authorization device
US-2018134521-A1 · May 17, 2018 · US
Re-dispatching unoccupied elevator car for occupant evacuation operation
US-2018093856-A1 · Apr 5, 2018 · US
Optimized occupant evacuation operation by utilizing remaining capacity for multi-compartment elevators
US-2018093857-A1 · Apr 5, 2018 · US
Method, elevator control unit, and elevator system for dynamically adjusting a levelling speed limit of an elevator car
US-2018037436-A1 · Feb 8, 2018 · US
Usage and contextual-based management of elevator operations
US-2017369275-A1 · Dec 28, 2017 · US
Monitoring device for a passenger transport system
US-9850097-B2 · Dec 26, 2017 · US
Elevator Car and Elevator System
US-2017362064-A1 · Dec 21, 2017 · US
Redundant safety circuit
US-2017362055-A1 · Dec 21, 2017 · US
Fire service sequence for multicar elevator systems
US-2017355562-A1 · Dec 14, 2017 · US
Elevator system and method for monitoring an elevator system
US-2017349398-A1 · Dec 7, 2017 · US
Method for operating an electronic safety system with temporary subscribers
US-2017349404-A1 · Dec 7, 2017 · US
Car separation control in multi-car elevator system
US-2017349397-A1 · Dec 7, 2017 · US
Actively damping vertical oscillations of an elevator car
US-9828211-B2 · Nov 28, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B66B1/28?
- CPC B66B1/28 is the Cooperative Patent Classification code for “electrical (detecting excessive speed B66B5/04 {; control of electrical motor H02P}).”
- How many patents are filed under CPC B66B1/28 (electrical (detecting excessive speed B66B5/04 {; control of electrical motor H02P}))?
- Our database includes 433 publications tagged with this CPC code.
- Is patent activity under CPC B66B1/28 growing?
- Publication counts under this code: 33 in 2024 vs 25 in 2025 (latest complete years).