Elevator car with retractable apron and elevator system comprising such an elevator car
US-2025353705-A1 · Nov 20, 2025 · US
Toe guards or apron devices
Toe guards or apron devices · 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 | B66B13/285 |
| Official title | {Toe guards or apron devices} |
| Display label | Toe guards or apron devices |
| Total patents | 32 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 5 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 6 |
| 2021 | 4 |
| 2022 | 4 |
| 2023 | 2 |
| 2024 | 3 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Apron device, elevator car and method for protecting from falling into elevator shaft
US-12330912-B2 · Jun 17, 2025 · US
Apron device, elevator car and method for protecting from falling into elevator shaft
US-2024336456-A1 · Oct 10, 2024 · US
Elevator sill clearance protection device and elevator car
US-2024279026-A1 · Aug 22, 2024 · US
Elevator system having a car apron supportable on guide rails
US-11919744-B2 · Mar 5, 2024 · US
Car skirt of an elevator installation
US-11702320-B2 · Jul 18, 2023 · US
Elevator apron
US-11577936-B2 · Feb 14, 2023 · US
Elevator installation
US-2022332546-A1 · Oct 20, 2022 · US
Elevator system having a car apron supportable on guide rails
US-2022315388-A1 · Oct 6, 2022 · US
Elevator car apron
US-11267679-B2 · Mar 8, 2022 · US
Elevator car apron
US-11235952-B2 · Feb 1, 2022 · US
Elevator car apron
US-11198594-B2 · Dec 14, 2021 · US
Elevator car toe guard system
US-11161716-B2 · Nov 2, 2021 · US
Elevator car apron
US-11136222-B2 · Oct 5, 2021 · US
Elevator apron
US-2021101785-A1 · Apr 8, 2021 · US
Elevator car apron
US-2020165104-A1 · May 28, 2020 · US
Elevator car apron
US-2020048047-A1 · Feb 13, 2020 · US
Elevator car apron
US-2020048049-A1 · Feb 13, 2020 · US
Elevator car apron
US-2020039796-A1 · Feb 6, 2020 · US
Elevator car apron
US-2020031629-A1 · Jan 30, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B66B13/285?
- CPC B66B13/285 is the Cooperative Patent Classification code for “Toe guards or apron devices.”
- How many patents are filed under CPC B66B13/285 (Toe guards or apron devices)?
- Our database includes 32 publications tagged with this CPC code.
- Is patent activity under CPC B66B13/285 growing?
- Publication counts under this code: 3 in 2024 vs 2 in 2025 (latest complete years).