Elevator trench drain
US-11795703-B2 · Oct 24, 2023 · US
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Built-in gratings, e.g. foot-scrapers
Built-in gratings, e.g. foot-scrapers · Cooperative Patent Classification (CPC)
Building, mining, and civil engineering structures.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | E04F19/10 |
| Official title | Built-in gratings, e.g. foot-scrapers |
| Display label | Built-in gratings, e.g. foot-scrapers |
| Total patents | 4 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears stable based on the most recent years.
| Year | Patents |
|---|---|
| 2019 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.