Elevator control system
US-10934130-B2 · Mar 2, 2021 · US
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by screw-nut drives
by screw-nut drives · 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 | B66B9/025 |
| Official title | {by screw-nut drives} |
| Display label | by screw-nut drives |
| Total patents | 15 |
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 | 3 |
| 2017 | 4 |
| 2018 | 3 |
| 2019 | 2 |
| 2020 | 2 |
| 2021 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Lifting assembly, jump elevator and jumping method
US-2020180912-A1 · Jun 11, 2020 · US
Magnetic elevator drive member and method of manufacture
US-10587180-B2 · Mar 10, 2020 · US
Lateral transfer station for elevator having a magnetic screw propulsion system
US-10508004-B2 · Dec 17, 2019 · US
Magnetic elevator drive member and method of manufacture
US-10214387-B2 · Feb 26, 2019 · US
Magnetic elevator drive member and method of manufacture
US-2018330858-A1 · Nov 15, 2018 · US
Elevator control system
US-2018186595-A1 · Jul 5, 2018 · US
Magnetic screw propulsion system for elevators
US-9878881-B2 · Jan 30, 2018 · US
Magnetic elevator drive member and method of manufacture
US-2017327347-A1 · Nov 16, 2017 · US
Magnetic elevator drive member and method of manufacture
US-2017331360-A1 · Nov 16, 2017 · US
Self-propelled cargo lift for elevator systems
US-9776832-B2 · Oct 3, 2017 · US
Lateral transfer station for elevator having a magnetic screw propulsion system
US-2017240385-A1 · Aug 24, 2017 · US
Self-propelled cargo lift for elevator systems
US-2015368071-A1 · Dec 24, 2015 · US
Magnetic screw propulsion system for elevators
US-2015307325-A1 · Oct 29, 2015 · US
Screw-driven elevation structure
US-9010498-B2 · Apr 21, 2015 · US