Elevator compensation assembly monitor
US-11945690-B2 · Apr 2, 2024 · US
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hydraulic
hydraulic · 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 | B66B1/04 |
| Official title | hydraulic |
| Display label | hydraulic |
| Total patents | 13 |
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 |
| 2017 | 1 |
| 2018 | 3 |
| 2019 | 1 |
| 2020 | 3 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Elevator compensation assembly monitor
US-2023052952-A1 · Feb 16, 2023 · US
Elevator compensation assembly monitor
US-11524872-B2 · Dec 13, 2022 · US
Elevator compensation assembly monitor
US-2021331896-A1 · Oct 28, 2021 · US
Hydraulic elevator safety device, and method for detecting open-door travel abnormality in hydraulic elevator
US-10766742-B2 · Sep 8, 2020 · US
Systems and methods for controlling working fluid in hydraulic elevators
US-2020262677-A1 · Aug 20, 2020 · US
Hydraulic elevator system with position or speed based valve control
US-10611600-B2 · Apr 7, 2020 · US
Automatic rope tension equalizer system and method
US-2019177127-A1 · Jun 13, 2019 · US
Hydraulic elevator system with position or speed based valve control
US-2018370757-A1 · Dec 27, 2018 · US
Hydraulic elevator safety device, and method for detecting open-door travel abnormality in hydraulic elevator
US-2018370765-A1 · Dec 27, 2018 · US
Hydraulically activated shutoff valve for a hydraulic elevator system
US-2018170715-A1 · Jun 21, 2018 · US
Energy recapture system for hydraulic elevators
US-9605694-B2 · Mar 28, 2017 · US
Energy Recapture System for Hydraulic Elevators
US-2015176617-A1 · Jun 25, 2015 · US