Brake shoe for self-clamping retention of a unit that is transportable on rails
US-2025305549-A1 · Oct 2, 2025 · US
Positive wheel stops · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B61K7/20 |
| Official title | Positive wheel stops |
| Display label | Positive wheel stops |
| Total patents | 6 |
Year-over-year patent counts classified under this CPC code.
Filing activity appears to be growing based on the most recent years.
| Year | Patents |
|---|---|
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 2 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2025305549-A1 · Oct 2, 2025 · US
US-12304753-B1 · May 20, 2025 · US
US-12110216-B2 · Oct 8, 2024 · US
US-11649141-B2 · May 16, 2023 · US
US-2022024728-A1 · Jan 27, 2022 · US
US-2022024729-A1 · Jan 27, 2022 · US